N.G. VOLKOVA, Candidate of Sciences (Engineering) (vngeo12@yandex.ru) Scientific-Research Institute of Building Physics of the Russian Academy architecture and construction sciences (21, Lokomotivniy Driveway, Moscow,127238, Russian)

Expediency of Development of the Federal Law on Application of Climatic Normative Standards in Building In economic activities of the country, the most considerable expenses are for building. Modern building, in connection with climatic changes on the territory of the Russian Federation and the developed climatological situation requires the development of new climatic normative standards. It is noticed that in a number of standard documents, the due attention to the climatic information, which was not updated no one decade that leads to use the out-of-date data, is not paid and is inadmissible. The development of the Federal law on the use of cli- matic normative standards in the building industry will make it possible to provide energy savings and to improve the quality of works in construction.

Keywords: legislation, climatic changes, building, economy, rationing, safety.

For citation: Volkova N.G. Expediency of development of the federal law on application of climatic normative standards in building. Stroitel’nye Materialy [Construction Materials]. 2017. No. 6, pp. 4–6. (In Russian).

References
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3. Volkova N.G. Development of rating of construction climatology. BST. 2012. No. 2, pp. 37–38. (In Russian).
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7. Botnar M.I., Rymarov A.G. Features of monitoring of change of temperature of outside air in the period of a sharp cold snap. Construction physics. Papers of systems of support of a microclimate and energy saving in buildings. Moscow: MGSU, 2014, pp. 260–263.
8. Anikeev V.V. How to develop the Far East. Basic researches of PAACH on scientific support of development of architecture, town planning and construction branch of the Russian Federation in 2014 Moscow-Kursk, 2015, pp. 231–238.
9. Kobysheva N.V., Akentyev E.M., Galyuk L.P. Klimati- cheskie riski i adaptatsiya k izmeneniyu i izmenchivosti klimata v tekhnicheskoi sfere. Federal’naya sluzhba po gidrometeorologii i monitoringu okruzhayushchei sredy i gl. geofizicheskaya observatoriya im. A.I. Voeikova [Climate risks and adaptation to change and variability of climate in the technical sphere. Federal Service for Hydrometeorology and Environmental Monitoring and hl. geophysical observatory of A.I. Voyeykov]. Nizhny Novgorod: Kirillitsa, 2015. 213 p.
10. Volkova N. G. About the accounting of the last climatic changes in construction. ACADEMIA. Arkhitektura i stroitel’stvo. 2017. No. 1, pp. 120–123. (In Russian).

N.V. KUZNETSOVA, Candidate of Sciences (Engineering), Docent, (nata-kus@mail.ru), O.S. BARINOVA, Magistrand Tambov State Technical University (106, Sovetskaya Street, 392000, Tambov, Russian Federation)

Physical-Mechanical Properties of Cement Composite Building Materials with the Use of Waste of CWB Production A possibility to use the waste of production of cement-woodchip boards (CWB) as components of cement mixes when producing new composite building materials is analyzed. To achieve the maximum utilization of these wastes, the optimal composition of components of mixes has been chosen. Physical-mechanical characteristics of cement composite materials with the use of CWB waste, density, central compression, bending strength depending on the type and quantity of additives (superplasicizer of polypropylene microfiber) have been experimentally studied. Dependences of compression strength and density depending on the amount of a superplasticizer introduced in the mix were constructed. It is revealed that the calculation of the amount of additive is to be made from the summary mass of a binder and CWB waste. It is proved that the introduction of additives into the wood-cement composition makes it possible to obtain an eco-friendly material not inferior in its physical-mechanical properties to the traditional concrete.

Keywords: resource saving, waste of cement-woodchip board production, cement composite materials, physical-mechanical properties.

For citation: Kuznetsova N.V., Barinova O.S. Physical-mechanical properties of cement composite building materials with the use of waste of CWB production. Stroitel’nye Materialy [Construction Materials]. 2017. No. 6, pp. 7–9. (In Russian).

References
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3. Gornostaeva E.Yu., Lasman I.A., Fedorenko E.A., Kamoza E.V. Wood and cement compositions with the modified structure on macro-, micro and nanolevels. Stroitel’nye materialy [Construction Materials]. 2015. No. 11, pp. 13–17. (In Russian).
4. Tskhovrebov E.S., Velichko E.G. Environmental pro- tection and health of the person in the process of the circulation of building materials. Stroitel’nye materialy [Construction Materials]. 2014. No. 5, pp. 99–103. (In Russian).
5. Ezerskiy V.A., Kuznetsova N.V., Barinova O.S. Modifica- tion of сement mixtures using waste cement-bonded par- ticleboards. Stroitel’nye materialy [Construction Materials]. 2016. No. 6, pp. 47–49. (In Russian).
6. Belov V.V., Obraztsov I.V., Kulyaev P.V. Methodology for designing optimal structures of cement concrete. Stroitel’nye materialy [Construction Materials]. 2013. No. 3, pp. 17–21. (In Russian).
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N.I. KARPENKO, Doctor of Sciences (Engineering), Academician of RAACS (niisf_lab9@yandex.ru) V.N. YARMAKOVSKY, Candidate of Sciences (Engineering), Honorary Member of RAACS (yarmakov-sky@yandex.ru) D.Z. KADIEV, Engineer, (yarmakovsky@yandex.ru)

Scientific-Research Institute of Building Physics of the Russian Academy of Architecture and Construction Sciences (RAACS) (21, Lokomotivny Passage, Moscow, 127238, Russian Federation) Influence of Humidity of Concrete on Its Deformation Diagrams under Load at Low Negative (up to -70°C) Temperatures The article contains the analysis of experiment research in the definition of the joint effect of low negative climatic (up to -70°C) temperature and humidity of concrete (in the range of 3,12 to 5,20%) at the water-cement ratio=0.4 on the transformation of the diagrams of heavy (normal weight) concrete deformation. Developed diagrams are intended for building gen- eral physical ratios as applied to the calculation of reinforced concrete structures which operate under the conditions of simultaneous action of power loads, a significant negative tem- perature and humidity of concrete with the help of modern computational methods (finite element method for example).

Keywords: diagram of concrete deformation, low negative temperatures, humidity, reinforced concrete structures, load.

For citation: Karpenko N.I., Yarmakovsky V.N., Kadiev D.Z. Influence of humidity of concrete on its deformation diagrams under load at low negative (up to -70°C) temperatures. Stroitel’nye Materialy [Construction Materials]. 2017. No. 6, pp. 10–13. (In Russian).

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T.F. EL'CHISHCHEVA, Candidate of Sciences (Engineering) (elschevat@mail.ru) Tambov State Technical University (106, Sovetskaya Street, 392000, Tambov, Russian Federation)

Determination of Humidity Conditions in Premises of Buildings at Presence of Hygroscopic Salts in Wall Material External enclosing structures of premises of residential and public buildings are often constructed with the use of building materials containing hygroscopic salts and their mixes which are introduced as technological additives regulating properties and processes of material hardening, come from the environment, either present in the initial raw material. The presence of salts contributes to improving sorption properties and moisture content of wall materials that worsens the sanitary condition of the premises. The necessity to take into account the influence of salts when establishing the humidity conditions in premises of such buildings is shown; the procedure of engineering calculation of the partial pressure of saturated water vapour at presence of some salts in the wall material of premises as well as their mixes at different temperature corresponding to the operation conditions of external enclosing struc- tures is proposed.

Keywords: humidity conditions, hygroscopic salts, crystalline hydrate, external enclosing structures, partial conditions, pressure of saturated water vapor

For citation: : Elchishcheva T.F. Determination of humidity conditions in premises of buildings at presence of hygroscopic salts in wall material. Stroitel’nye Materialy [Construction Materials]. 2017. No. 6, pp. 14–18. (In Russian).

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11. Gagarin V.G., Kozlov V.V., Zubarev K.P. Analysis of the location of the zone of maximum moisture in the enclosing structures with different thickness of the thermal insulation layer. Zhilishchnoe stroitel'stvo [Housing construction]. 2016. No. 6, pp. 8–12. (In Russian).
12. Sheps R.A., Shchukina T.V. Thermal protective properties of fences taking into account the forecasted operating conditions. Zhilishchnoe stroitel'stvo [Housing construction]. 2015. No. 7, pp. 29–30. (In Russian).
13. Kornienko S.V. Proposals for the correction of SP 50.13330.2012 regarding the protection from waterlogging of enclosing structures. Zhilishchnoe stroitel'stvo [Housing construction]. 2015. No. 7, pp. 31–34. (In Russian).
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M.E. PILECKIJ, Engineer, I.V. DIDRIKH, Candidate of Sciences (Engineering), A.F. ZUBKOV, Doctor of Sciences (Engineering), К.A. АNDRIANOV, Candidate of Sciences (Engineering) Tambov State Technical University (112, bldg.E, Michurinskaya Street, Tambov, 392032, Russian Federation)

Research of Bitumen-Mineral Mixture Applied for Patching Repair of Road Pavements Using Jet-Injection Method Physical and mechanical properties of a bitumen-mineral mixture (strength, water saturation, compaction factor) are established for patching repair of road pavements of a non-rigid type with the use of jet-injection method. On the basis of obtained results of the laboratory studies with the use of a full factorial analysis, an analytical dependence of influence of tech- nological modes of stacking of the mixture when laying it in a pothole under different technological regimes and different volume of the mixture in the percent for the content of bitumen emulsion has been established. It is shown that the obtained value of water saturation of the material corresponds to the normative values of GOST 9128–2009 only with 10%-content of the emulsion by volume and an average feed rate of 30 m/s. It is proven that for increasing the service life of the repaired surface of road pavements, there is a need for additional compaction of the mixture in the pothole with tamping machines.
Keywords: jet-injection method, patching repair of road pavement of non-rigid type, bitumen-mineral mixture, water saturation, compaction factor.
For citation: Pileckij M.E., Didrikh I.V., Zubkov A.F., Аndrianov К.A. Research of bitumen-mineral mixture applied for patching repair of road pavements using jet-injection method. Stroitel’nye Materialy [Construction Materials]. 2017. No. 6, pp. 19–23. (In Russian).

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S.S. VAISERA1, Engineer (vaisera_sergei@mail.ru), O.V. PUCHKA1, Candidate of Sciences (Engineering) (oleg8a@mail.ru) V.S. LESOVIK
, Candidate of Sciences (Engineering) (bessonoviv@mail.ru); S.V. ALEKSEEV 1, Candidate of Sciences (Engineering) (aleks_sb@list.ru)
1 Belgorod State Technological University named after V.G. Shukhov (46, Kostyukova Street, Belgorod, 308012, Russian Federation)
2 Scientific-Research Institute of Building Physics of the Russian Academy architecture and construction sciences (21, Lokomotivniy Driveway, Moscow, 127238, Russian Federation)

Impact of Moisture Content, Air Permeability, and Density of Material on Its Noise-Absorption Characteristics Protection against noise, one of the main adverse factors of the human habitat, has become an integral part of the design, construction and reconstruction of cities. Development of methods for creating high efficient acoustic materials with a rigid frame on the basis of non-organic raw materials, foam glass, foam concrete, foam ceramics etc., is the most prospec- tive way of this problem solution. In particular, the foam glass is a universal, from the point of view of acoustic properties, material, as depending on the type of porosity (closed or opened) it possesses sound-isolation or noise-absorption characteristics. The authors have obtained the results, the analysis of which shows that the value of the noise-absorption coef- ficient of porous acoustic materials on the basis of foam glass is correlated with the values of air permeability and water absorption, that’s why using the methods for determining the air permeability and water absorption, it is possible to determine and predict the acoustic characteristic of porous materials.

Keywords: glass composite, foam glass, air permeability, water absorption, noise absorption.

For citation: Vaisera S.S., Puchka O.V., Lesovik V.S., Bessonov I.V., Alekseev S.V. Impact of moisture content, air permeability, and density of material on its noise-absorption character- istics. Stroitel’nye Materialy [Construction Materials]. 2017. No. 6, pp. 24–27. (In Russian).

References
1. Ivanov N.I. The problem of increased noise impact on the population of the Russian Federation. Protection of the population from increased noise impact: materials of the All-Russian Scientific and Practical Conference. Edited by Ivanova N.I., Friedman K.B. 2015, pp. 17–26. (In Russian).
2. Gerasimov A.I. Sound insulation and sound absorbing materials and their application in construction. Academia. Arhitektura i stroitel’stvo. 2009. No. 5, pp. 209–215. (In Russian).
3. Min’ko N.I., Puchka O.V., Stepanova M.N., Vaisera S.S. Teploizolyatsionnye steklomaterialy. Penosteklo. Mono- grafiya. [Thermal insulation glass materials. Foamglass. Monograf]. Belgorod: BGTU im. V.G. Shuhova Publi- shing. 2016. 263 p.
4. Radouckiy V.Ju., Vetrova Ju.V. Theoretical and experi- mental researches of sound insulation ability of insula- tion boards on the basis of foamglass. Vestnik BGTU im. V.G. Shukhova. 2015. No. 5, pp. 45–49. (In Russian).
5. Semuhin B.S., Votinov A.V., Kaz’mina O.V., Kovalev G.I. Influence of small additives of zirconium dioxide on properties of foam glass materials. Vestnik TGASU. 2014. No. 6 (47), pp. 123–131. (In Russian).
6. Semuhin B.S., Kaz’mina O.V., Kovalev G.I., Oparenkov Ju.V., Dushkina M.A. Determination of acoustic proper- ties of foamglass crystal materials. Izvestija vysshih ucheb- nyh zavedenij. Fizika. 2013. Vol. 56. No. 7-2, pp. 334–338. (In Russian).
7. Vaisera S.S. Puchka O.V., Lesovik V.S., Bessonov I.V., Sergeev S.V. Effective acoustic steklokompozit. Stroitel’nye Materialy [Construction Materials]. 2016. No. 6, pp. 28–31. (In Russian).
8. Lesovik V.S., Puchka O.V., Vaisera S.S., Elistratkin M.Ju. Building a new generation of composites based on foamglass. Stroitel’stvo i rekonstrukciya. 2015. No 3 (59), pp. 146–154. (In Russian).
9. Laukaytis A.A. The permeability of cellular concrete with low density. Stroitel’nye Materialy. 2001. No 7, pp. 16–18. (In Russian).
10. Vajsera S.S. The coefficient of air permeability as a param- eter to assess the structure of the foamglass. Vestnik BGTU im. V.G. Shukhova. 2016. No. 3, pp. 70–74. (In Russian).

V.G. GAGARIN, Doctor of Sciences (Engineering), Corresponding member of RAACS (gagarinvg@yandex.ru), P.P. PASTUSHKOV, Candidate of Sciences (Engineering) (pavel-one@mail.ru) Scientific-Research Institute of Building Physics of the Russian Academy architecture and construction sciences (21, Lokomotivniy Driveway, Moscow, 127238, Russian Federation) Changes in the Time of Thermal Conductivity of Gas-Filled Polymer Thermal Insulation Materials The change in the thermal conductivity of gas-filled polymer insulating materials, including polyisocyanurate foam due to the replacement of gas in the pores of the material with air, is considered. The mathematical model of process is created, the equation describing the change of heat conductivity of material including two parameters is received. Experiments on measurement of heat conductivity of samples of a poliizotsianurat foam within one year are made. The obtained data well are approximated by the offered equation. The determinated parameters of the equation have allowed to calculate heat conductivity of material in steady state. This heat conductivity can be used as the declared value of heat conductivity of mate- rial in a dry state, and also for determination of calculated values under operating conditions A and B on SN «Thermal performance of buildings». Keywords: heat conductivity, polyisocyanurate foam, polyurethane foam, diffusion of gas in polymeric materials. For citation: Gagarin V.G., Pastushkov P.P. Changes in the time of thermal conductivity of gas-filled polymer thermal insulation materials. Stroitel’nye Materialy [Construction Materials]. 2017. No. 6, pp. 28–31. (In Russian).

V.G. GAGARIN, Doctor of Sciences (Engineering), Corresponding member of RAACS (gagarinvg@yandex.ru), P.P. PASTUSHKOV, Candidate of Sciences (Engineering) (pavel-one@mail.ru) Scientific-Research Institute of Building Physics of the Russian Academy architecture and construction sciences (21, Lokomotivniy Driveway, Moscow, 127238, Russian Federation)

Changes in the Time of Thermal Conductivity of Gas-Filled Polymer Thermal Insulation Materials The change in the thermal conductivity of gas-filled polymer insulating materials, including polyisocyanurate foam due to the replacement of gas in the pores of the material with air, is considered. The mathematical model of process is created, the equation describing the change of heat conductivity of material including two parameters is received. Experiments on measurement of heat conductivity of samples of a poliizotsianurat foam within one year are made. The obtained data well are approximated by the offered equation. The determinated parameters of the equation have allowed to calculate heat conductivity of material in steady state. This heat conductivity can be used as the declared value of heat conductivity of mate- rial in a dry state, and also for determination of calculated values under operating conditions A and B on SN «Thermal performance of buildings».

Keywords: heat conductivity, polyisocyanurate foam, polyurethane foam, diffusion of gas in polymeric materials.

For citation: Gagarin V.G., Pastushkov P.P. Changes in the time of thermal conductivity of gas-filled polymer thermal insulation materials. Stroitel’nye Materialy [Construction Materials]. 2017. No. 6, pp. 28–31. (In Russian).

References
1. Fokin K.F. Stroitel’naya teplotekhnika ograzhdayush- chikh chastei zdanii. 5-e izd. [Building heat engineering of enclosing parts of buildings. 5-th ed.]. Moscow: AVOK-PRESS. 2006. 252 p.
2. Bjrn P.J. Traditional, state-of-the-art and future ther- mal building insulation materials and solutions – Properties, requirements and possibilities. Energy and Buildings. 2011. Vol. 43, pp. 2549–2563.
3. Willems W.M., Schild K. Dämmstoffe im Bauwesen. In Bauphysik Kalender. Simulations- und Berechnung- sverfahren. Herausgegeben von Nabil A. Fouad. Berlin. 2015, pp. 33–110.
4. Nemova T.N., Lezhneva Yu.A., Tsvetkov N.A., Alekse- eva E.G. Effect of changes in the thermal conductivity of thermal insulation materials on the thermal losses of main pipelines. Vestnik Tomskogo gosudarstvennogo arkh- itekturno-stroitel’nogo universiteta. 2016. No. 5 (58), pp. 151–160. (In Russian).
5. Maxwell J.C. A Treatise on Electricity and Magnetism. 3 rd ed. Oxford. 1904. 504 p.
6. Gagarin V.G. Theory of the state and transport of mois- ture in building materials and thermal performance of the enclosing structures of the buildings. Doct. Diss. Engi- neering. Moscow. 2000. 396 p. (In Russian).
7. ASTM Standard C1303/C1303M – 12. Standard Test Method for Predicting Long-Term Thermal Resistance of Closed-Cell Foam Insulation. March 2012.
8. Gagarin V.G., Pastushkov P.P. Quantitative assessment of en- ergy efficiency of energy saving measures. Stroitel’nye Materialy [Construction Materials]. 2013. No. 6, pp. 7–9. (In Russian).

D.V. KRAYNOV, Candidate of Sciences (Engineering) (dmitriy.kraynov@gmail.com) Kazan State University of Architecture and Engineering (1, Zelenaya Street, 420043, Kazan, Russian Federation)

Accounting of Glazing of the Faсade when Designing the Heat Protection of a Building At present, residential and public buildings with a large area of faсade glazing are widely spread. Increasing the area of translucent structures leads to increasing the heat losses and reducing the specific heat protection characteristic of the building. When designing the heat protection of the buildings, it is necessary to strive for creating the harmonically insulated shell meeting the normative requirements. The problem of determining the maximal coefficient of facade glazing meeting the complex requirement of heat protection is considered. The influence of the change in the reduced resistance to heat transfer of some fragments of the heat protection shell on the maximum value of the glazing coefficient has been analyzed. It is shown by example that the redistribution of costs for the construction of various fragments of the heat protecting shell makes it possible o achieve the necessary coefficient of facade glazing meeting the normative requirements.

Keywords: specific heat protection characteristic, harmonically insulated heat protecting shell, glazing coefficient, shape of building

For citation: Kraynov D.V. Accounting of glazing of the faсade when designing the heat protection of a building. Stroitel’nye Materialy [Construction Materials]. 2017. No. 6, pp. 32–34. (In Russian).

References
1. Gagarin V. G., Zemcov V.A., Igumnov N.M. Equal efficiency of window blocks by thermal protection and light transmission parameters. Vestnik otdelenija stroitel’nyh nauk RAASN. Belgorod. 2008. No. 12, pp. 342–349. (In Russian).
2. Korkina E.V. Comprehensive comparison of window blocks for lighting and thermotechnical parameters. Zhilishhnoe Stroitel’stvo [Housing Construction]. 2015. No. 6, pp. 60–62. (In Russian).
3. Halikova F.R., Kuprijanov V.N. Experimental studies of the penetration of UV radiation through window glass. Vestnik MGSU. 2011. No. 3. P. 2, pp. 30–35. (In Russian).
4. Maljavina E.G., Frolova A.A. Analysis of annual energy consumption for heating and cooling office building. AVOK: Ventiljacija, otoplenie, kondicionirovanie vozduha, teplosnabzhenie i stroitel’naja teplofizika. 2017. P. 1. No. 1, pp. 68–75. (In Russian).
5. Kozlov V.V. Basics of optimization of thermal protection of enclosing structures by energy-saving activities recoupment. Stroitel’nye Materialy [Construction Materials]. 2013. No. 6, pp. 10–13. (In Russian).
6. SP 50.13330.2012. Teplovaya zashchita zdanii. Aktualizirovannaya redaktsiya SNiP 23-02–2003 [Thermal performance of the buildings. Actualized edition of SNiP 23-02–2003]. Moscow: Minregion Rossii. 2012. 95 p.
7. SNiP 23-02–2003. Teplovaya zashchita zdanii [Thermal performance of the buildings]. Moscow: TsITP Gosstroya Rossii. 2003. 70 p.

V.A. KUZMIN, Leading Engineer (lte@zavodlit.ru) ZAO «Zavod LIT» (1 Sovetskaya Street, Pereslavl-Zalessky, Yaroslavskaya Oblast, 152020, Russian Federation)

Research in Possibilities to Use Reflective Heat Insulation in Multi-Layer Sandwich-Panels with Due Regard for Multiple Reflection Possibilities to use the reflective heat insulation in energy-saving multi-chamber sandwich-panels with due regard for multiple reflection are studied. Methods and results of experiments on the study of samples of multi-chamber sandwich-panels are presented. Examples of the calculations of multi-chamber designs with dead air spaces and reflective insulation accord- ing to the methods GOST 56734–2015 “Buildings and facilities. Calculation of the indicator of heat protection of enclosing structures with reflective heat insulation” are also presented.

Keywords: energy saving, heat protection of buildings, reflective heat insulation, multiple reflection, sandwich-panel, prefabricated buildings, mobile buildings, weatherization, reflective capacity.

For citation: Kuzmin V.A. Research in possibilities to use reflective heat insulation in multi-layer sandwich-panels with due regard for multiple reflection. Stroitel’nye Materialy [Construction Materials]. 2017. No. 6, pp. 35–40. (In Russian).

References
1. Gagarin V.G., Pastushkov P.P. On the evaluation of en- ergy efficiency of energy saving measures. Inzhenernye sistemy. AVOK–Severo-Zapad. 2014. No. 2, pp. 26–29. (In Russian).
2. Gagarin V.G., Neklyudov A.Yu. Accounting of thermal inhomogeneity fences when determining the heat load on the heating system of the building. Zhilishchnoe Stroitel’stvo [Housing Construction]. 2014. No. 6, pp. 3–7. (In Russian).
3. Gagarin V.G., Dmitriev K.A. Accounting Heat engineer- ing heterogeneities when assessing the thermal protection of enveloping structures in Russia and European countries. Stroitel’nye Materialy [Construction Materials]. 2013. No. 6, pp. 14–16. (In Russian).
4. Gagarin V.G., Pastushkov P.P. Quantitative assessment of energy efficiency of energy saving measures. Stroitel’nye Materialy [Construction Materials]. 2013. No. 6, pp. 7–9. (In Russian).
5. Gagarin V.G., Kozlov V.V. Requirements for thermal protection and energy efficiency in the draft of the up- dated SNiP “Thermal Protection of Buildings”. Zhilishchnoe Stroitel’stvo [Housing Construction]. 2011. No. 8, pp. 2–6. (In Russian).
6. Umnyakova N.P., Kuzmin V.A. The use of reflective heat insulation in multilayer panels with effect of multiple re- flection of a heat flow. Zhilishchnoe Stroitel’stvo [Housing Construction]. 2016. No. 6, pp. 21–24. (In Russian).
7. Kuzmin V.A., Schabanin D.A., Tsirlin A.M., Tsygan- kov V.M., Achremenkov An.A. Techno-economic com- parison of methods of energy saving by insulation of buildings. Izvestija vysshih uchebnyh zavedenij. Problemy jenergetiki. 2014. No. 9–10, pp. 82–90. (In Russian).
8. Kuzmin V.A., Schabanin D.A., Tsirlin A.M. Mathematical and computer modeling of temperature and moisture mode of fencing in construction. The collec- tion of the XVIII annual youth scientific-practical confer- ence “High-tech information technologies” SIT-2014, pp. 43–59. (In Russian).
9. Achremenkov An.A., Kuzmin V.A., Tsirlin A.M., Tsygankov V.M. Energy efficiency of coating the inner surface of premises with reflective heat insulation. Stroitel’nye Materialy [Construction Materials]. 2013. No. 12, pp. 65–67. (In Russian).
10. Umnyakov P.N. The use of aluminum foil for thermal in- sulation of buildings. Collection of articles NIISF “Research in building physics”. Moscow: Gosstroyizdat, 1959.
11. Umnyakova N.P. Heat protection of cloused air spaceswith reflective insulation. Zhilishchnoe Stroitel’stvo [Housing Construction]. 2014. No. 1–2, pp. 16–20. (In Russian).
12. Umnyakova N.P. Heat transfer through enclosing struc- tures with due regard for coefficients of radiation of inner surfaces of premises. Zhilishchnoe Stroitel’stvo [Housing Construction]. 2014. No. 6, pp. 14–17. (In Russian).
13. Umnyakova N.P. Reduction in heat losses of a behind radiators wall surface. Zhilishchnoe Stroitel’stvo [Housing Construction]. 2015. No. 2, pp. 21–24. (In Russian).
14. Manankov V.M. Reflective insulation in energy efficient construction. Vestnik MGSU. 2011. No. 3, pp. 319–326. (In Russian).
15. Manankov V.M. Reflective insulation in energy efficient construction. Vse o zhilishhno-kommunal’nom hozjajstve. 2011. No. 2, pp. 57–59. (In Russian).
16. Fokin K.F. Stroitel’naya teplotekhnika ograzhdayush- chikh chastei zdanii / Pod redaktsiei Yu.A. Tabunshchikova i V.G. Gagarina. 5-e izdanie [Building heat engineering of enclosing parts of buildings. Edited by J.A. Tabunschikov and V.G. Gagarin. 5-th edition]. Moscow: AVOK-PRESS. 2006. 256 p.
17. Andreev D.A., Mogutov V. A. Thermal performance of multilayer enclosing structures with layers of reflective insulation. Proceedings of NIISF. 2002, pp. 139–146. (In Russian).
18. Andreev D. A., Mogutov V. A., Tsirlin, A. M., the Choice of layers enclosing structures subject to prevent internal condensation. Stroitel’nye Materialy [Construction Materials] 2001. No. 12, pp. 42–45. (In Russian).
19. Bogoslovskiy V.N. Stroitel’naya teplofizika [Building thermal physics]. Moscow: Vysshaja shkola. 1982.
20. Arnold L., Mikhailovsky G.A., Seliverstov, V.M. Tekhnicheskaya termodinamika i teploperedacha [Engineering thermodynamics and heat transfer]. Moscow: Vysshaja shkola. 1979.

S.A. BUGAEVSKAYA 1 , General Director, A.V. RYZHKOV 1 , Commercial Director; V.A. AISTOV 2 , Engineer
1 OOO PK “StroyBiznesAl’yans” (18, 3-ya Khoroshevskaya Street, Moscow, 123298, Russian Federation)
2 Scientific-Research Institute of Building Physics of the Russian Academy architecture and construction sciences (21, Lokomotivniy Driveway, Moscow,127238, Russian) The Use of Modern Prospective Material Izofom in Building Practice Basic technical characteristics of the prospective building material, cross-linked foam polyethylene Izofom developed and produced by OOO “Production company “StroyBiznesAl’yans” are considered. Examples of the use of cross-linked foam polyethylene Izofom in the construction practice are presented. It is used as: heat and sound-insulation layer in structures of intermediate floors executed as “a floating floor” for reducing the level of impact noise and improving the air noise isolation; heat and sound-insulation substrate under the parquet plank, laminate, linoleum, carpet covering, ceramic tiles as well as when designing stair flights with “floating” steps; heat and sound-insulation layer for insulation of air ducts of ventila- tion and air-conditioning systems, for insulation of pipes of heating, hot and cold water supply, sewerage pipes; water-proofing and steam-protecting layer in building structures and in tunnels; heat – waterproofing for preventing the heat losses at hydration in the process of concrete structures hardening. Due to its unique properties, the cross-linked foam polyethyl- ene Izofom is a modern building material which makes it possible to meet regulating requirements for heat insulation and water-proofing, insulation of impact and air noise with building structures during the whole service life. That’s why, Izofom is recommended for the wide use when constructing various objects.

Keywords: cross-linked foam polyethylene, heat protection, sound insulation, water-proofing, vapor impermeability.

For citation: Bugaevskaya S.А., Ryzhkov А.V., Аistov V.А. The use of modern prospective material Izofom in building practice. Stroitel’nye Materialy [Construction Materials]. 2017. No. 6, pp. 42–45. (In Russian).

References
1. Tekhnologiya polimernykh materialov [Technology of polymeric materials]. Under edition Kryzhanovskiy V.K. Saint-Petersburg: Professiya. 2011. 534 p.
2. Rauvendaal’ K. Osnovy ekstruzii [Extrusion bases]. Saint-Petersburg: Professiya. 2011. 280 p.
3. Kolgryuber K. Dvukhshnekovye sonapravlennye ekstrud- ery. Osnovy, tekhnologiya, primenenie [Twin-screw uni- directional extruders. Bases, technology, application]. Saint-Petersburg: Professiya. 2016. 370 p.
4. Klempner D., Sendzharevich V. Polimernye peny i tekh- nologii vspenivaniya [Polymeric foams and technologies of foaming]. Saint-Petersburg: Professiya. 2009. 600 p.
5. Grell’man V., Zaidler S. Ispytaniya plastmass [Tests of plastic]. Saint-Petersburg: Professiya. 2010. 720 p.
6. Tsvaifel’ Kh., Maer R.D., Shiller M. Dobavki k polim- eram [Additives to polymers]. Saint-Petersburg: Professiya. 2010. 1144 p.
7. Potsius A. Klei, adgeziya, tekhnologii skleivaniya [Glues, adhesion, technologies of pasting]. Saint-Petersburg: Professiya. 2015. 384 p.
8. Al’bom tekhnicheskikh reshenii po primeneniyu sshitogo penopolietilena «Izofom» pri ustroistve plavayushchikh polov i v drugikh stroitel’nykh konstruktsiyakh dlya zash- chity ot shuma i vibratsii pri stroitel’stve zhilykh, ob- shchestvennykh i promyshlennykh zdanii» [Album of technical solutions on application of the sewed penopo- lietilen by Izofom at the device of floating floors and in other building constructions for protection against noise and vibration at construction of the residential, public and production buildings]. Мoscow: PK «StroiBiznes- Al’yans», 2017. 39 p.
9. Rao Natti S., Skott Nik R. Tekhnologicheskie raschety v pererabotke plastmass [Technological calculations in pro- cessing of plastic]. Saint-Petersburg: Professiya. 2013. 200 p.
10. Krendall I.B. Akustika [Аcoustics]. Мoscow: Lenand. 2017. 171 p.

O.I. MATVEEVA, Candidate of Science (Engineering), (matveeva_oi@mail.ru), A.T. VINOKUROV, Engineer (vin.alt@mail.ru), L.S. SAVVINOV, Engineer (lubomir.05@mail.ru). Yakutsk State Scientific Research and Design Institute of Civil Engineering, JSC (20, Dzerzhinskogo Street, Yakutsk, 677000, Russian Federation)

Research in Thermal-Technical Characteristics of Experimental Samples of Enveloping Structures Produced According to the Technique of Double Beam The use of new designs of external walls in low-rise construction requires the stringent testing under natural conditions. It is especially important for regions with hard climate. The institute conducted the full-scale experimental studies of thermal-protecting characteristics of enclosing structures (walls) made of double beams in the winter time; calculations of ther- motechnical characteristics of enclosing structures of low-rise houses for climatic conditions of Yakutsk have been made according to SP 50.13330.2012. Results of the study showed insufficiency of geometric parameters and thermo-technical characteristics of external walls of buildings admitted for production: insufficient thickness of insulation, high air and vapour permeability of external walls. On the basis of experimental and calculated data obtained, recommendations on optimization of structural decisions of external walls of low-rise residen- tial houses for the climatic conditions of the Central Yakutia have been developed.

Keywords: double beam, external wall, resistance to heat transfer, thermotechnical calculation, air permeability, vapour permeability.

For citation: Matveeva O.I., Vinokurov A.T., Savvinov L.S. Research in thermal-technical characteristics of experimental samples of enveloping structures produced according to the tech- nique of double beam. Stroitel’nye Materialy [Construction Materials]. 2017. No. 6, pp. 46–51. (In Russian).

References
1. Kornilov T.A., Gerasimov G.N. On some mistakes in the design and construction of low-rise buildings from light steel thin-walled structures in the conditions of the Far North. Promyshlennoe i grazhdanskoe stroitel’stvo. 2015. No. 3, pp. 41–45. (In Russian).
2. Kornilov T.A., Kychkin I.R. External enclosing structures with the use of autoclaved concrete for frame-monolithic buildings of Yakutsk. Stroitel’nye Materialy [Construction Materials]. 2016. No. 6, pp. 15–19. (In Russian).
3. Lobov O.I., Anan’ev A.I, Rymarev A.G. The main reasons for the discrepancy between the actual level of thermal protection of the exterior walls of modern buildings are regulatory requirements. Promyshlennoe i grazhdanskoe stroitel’stvo. 2016. No. 11, pp. 68–70. (In Russian).
4. Lobov O.I., Anan’ev A.I To the issue of normalizing the level of thermal protection of the external walls of buildings. Gradostroitel’stvo. 2013. No. 5 (27), pp. 66–68. (In Russian).
5. Gaisins A.M., Samokhodova S.Yu., Paimet’kina A.Yu., Nedoseko I.V. Comparative assessment of specific heat losses through elements of external walls of residential buildings determined by different methods. Zhilishchnoe Stroitel’stvo [Housing Construction]. 2016. No. 5, pp. 36– 39. (In Russian).
6. Kryshov S.I., Kurilyuk I.S. Problems of expert assessment of heat protection of buildings. Zhilishchnoe Stroitel’stvo [Housing Construction]. 2016. No. 7, pp. 3–5. (In Russian).
7. Royfe V.S. Calculation of moisture distribution through the thickness of an enclosing structure under natural conditions. Stroitel’nye Materialy [Construction Materials]. 2016. No. 6, pp. 36–39. (In Russian).
8. Gagarin V.G., Kozlov V.V., Zubarev K.P. Analysis of the zone location of maximum moistening in the wall system with different thickness of insulation layer. Zhilishchnoe Stroitel’stvo [Housing Construction]. 2016. No. 6, pp. 8–12. (In Russian).
9. Kupriyanov V.N., Petrov A.S. Moisture condition of enclosing structures with due regard for variable value of vapor permeability of materials. Stroitel’nye Materialy [Construction Materials]. 2016. No. 6, pp. 40–43. (In Russian).
10. Umnyakova N.P., Kuzmin V.A. The use of reflective heat insulation in multilayer panels with effect of multiple reflection of a heat flow. Zhilishchnoe Stroitel’stvo [Housing Construction]. 2016. No. 6, pp. 21–24. (In Russian).

S.N. OVSYANNIKOV, Doctor of Sciences (Engineering), T.A. STEPANOVA, Magistrand (tanya_stepanova_90@inbox.ru), U. TOPChUBAEV, Magistrand, K.S. OVSYANNIKOV, Magistrand Tomsk State University of Architecture and Building (2, Solyanaya Square, Tomsk, 634003, Russian Federation)

Thermal Protection of Enclosing Structures of Rapidly Erected Buildings on the Timber Basis The system of timber housing construction developed by employees of the Tomsk State University of Architecture and Building is proposed. It is universal enough and basically intended for enterprises with small fabricating capacities in district centers or rural settlements. The system makes it possible to use maximally labor and natural resources and minimize the cost of objects constructed in villages. Developed structural decisions of nodes and joints of the proposed housing construction system were calculated with the help of the software system TEMPER with 3D temperature fields for determining the reduced resistance to heat transfer and the temperature on the internal surface of enclosing structures. The results of calcula- tions of the proposed structural decision of houses made of three-dimensional blocks show high thermal-technical characteristics and the absence of danger of condensate formation on the internal surface of walls.

Keywords: three-dimensional block, energy saving, temperature field, timber frame, heat balance.

For citation: Ovsyannikov S.N., T Stepanova.A., Topchubaev U., Ovsyannikov K.S. Thermal protection of enclosing structures of rapidly erected buildings on the timber basis. Stroitel’nye Materialy [Construction Materials]. 2017. No. 6, pp. 52–54. (In Russian).

References
1. Ovsyannikov S. N., Stepanova T. A. Design of energy ef- ficient buildings. Investing and real estate as a material basis of modernization and innovative development of the economy. Materials of V all-Russian scientific-practical conference with international participation. Tomsk. 2015. Vol. 2. pp. 253–256. (In Russian).
2. Faist V. Osnovnye polozheniya po proektirovaniyu pas- sivnykh domov [Basic provisions for the design of passive houses]. Moscow: ASV. 2008. 144 p.
3. Ovsyannikov S.N., Stepanova T.A. Energy-saving technologies of construction of buildings with high energy efficiency class. Investments, construction, real estate, as the material basis of modernization and inno- vative development of economy: Materials of VI Inter- national scientific-practical conference. Tomsk. 2016, pp. 490–494. (In Russian).
4. Ovsyannikov S. N., Maksimov V. B. Constructive solu- tion to energy-saving three-layer outer panels. Investing and real estate as a material basis of modernization and in- novative development of the economy. Materials of V all- Russian scientific-practical conference with internatio- nal participation. Tomsk. 2015. Vol. 2, pp. 335–339. (In Russian).
5. Ovsyannikov S. N., Vyazova T.O. Heat-protecting char- acteristics of external wall structures with heat conductive inclusions. Stroitel’nye Materialy. 2013. No. 6, pp. 24–27. (In Russian).
6. Ovsyannikov S.N. Energy efficiency of housing stock: problems and solutions. Materials of all-Russian scientific- practical conference with international participation “Investments real estate: economy, management and exper- tise”. Tomsk. 2011. Vol. 2, pp. 31–39. (In Russian).
7. Ovsyannikov S.N., Samohvalov A.S. Windows in sepa- rate covers with high heat-sound insulation. Stroitel’nye Materialy. 2012. No. 6, pp. 42–43. (In Russian).
8. Umnyakova N.P. The use of new innovative materials in construction. Investments, construction, real estate, as the material basis of modernization and innovative development of economy: Materials of VI International scientific-practi- cal conference. 2016. Vol. 1, pp. 26–33. (In Russian).
9. Hon S.V. Thermal insulation properties of buildings exte- rior walls of buildings. Actual problems of building and ecology in Western Siberia: collection of materials of scien- tific-practical conference. Tyumen. 2005, pp. 97–100. (In Russian).
10. Levinskiy Y.B. Manufacture of wooden houses in Russia: modern state and prospects of development. Derevoobrabatyvayushchaya promyshlennost’. 2001. No. 5, pp. 2 – 8. (In Russian).

D.S. SKRIPCHENKO, Magistrand (denis.tsuab@gmail.com), S.N. OVSYANNIKOV, Doctor of Sciences (Engineering) (ovssn@tsuab.ru) Tomsk State University of Architecture and Building (2, Solyanaya Square, Tomsk, 634003, Russian Federation)

Methods of Tests Conduction for Determining the Dynamic Elasticity Modulus, Dynamic Shear Modulus, and Loss Factor of Sound Insulation Materials Methods for measuring dynamic characteristics of sound insulation materials – dynamic elasticity modulus, loss factor, shear modulus, Poisson’s ratio are described. The unit in which the dynamic impact is created by the electric-dynamic vibration generator and the static load is specified by pressure equipment is also described. In this case, the increase in the static load doesn’t cause the change in the dynamic impact on materials, in other words, the verified data of characteristics of sound-insulation material have been obtained. The peculiarity of this method is that the test is conducted with a horizontal position of the vibrator, in combination with the static support and a counterweight of 1.5 kg. The cre- ation of horizontal resonance shear vibrations makes it possible to determine the resonance frequency and differential of vibro-accelerations. This methodology makes it possible to conduct a series of tests; characteristics of some sound-insulation materials obtained at the equipment of the Tomsk State University of Architecture and Building are presented in this work.

Keywords: dynamic characteristics, dynamic elasticity modulus, coefficient of losses, shear modulus, Poisson’s ratio, sound-insulation materials.

For citation: Skripchenko D.S., Ovsyannikov S.N. Methods of tests conduction for determining the dynamic elasticity modulus, dynamic shear modulus, and loss factor of sound insula- tion materials. Stroitel’nye Materialy [Construction Materials]. 2017. No. 6, pp. 55–58. (In Russian).

References
1. Rosin G.S. Development of measurement methods and study of dynamic characteristics of sound and vibration insu- lation materials. Cand. Diss. (Engineering). Moscow. 1963.
2. Rosin G.S. Installation for measuring the dynamic char- acteristics of elastic materials by the resonance method. Zavodskaya laboratoriya.1960. Vol. 26. No. 10, pp. 1180– 1181. (In Russian).
3. Zaborov V.I., Rosin G.S. Measuring the dynamic param- eters of soundproof materials. Akusticheskiy zhurnal. 1961. Vol. 7. No. 1, pp. 92–94. (In Russian).
4. Skripchenko D.S. Investigation of dynamic characteris- tics of sound-insulating materials for various types of loads. Materials of the II International Scientific Conference “Youth, science, technology: new ideas and perspectives”. Tomsk. 2015, pp. 139–142. (In Russian).
5. Skrichpenko D.S. Sound insulation in buildings in view of indirect sound transmission. Materials of the I Inter- national scientific conference “Youth, science, technology: new ideas and perspectives”. Tomsk. 2014, pp. 45–46. (In Russian).
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7. Ovsyannikov S.N., Skripchenko D.S. The results of ex- perimental studies of the dynamic characteristics of sound- proof materials used in enclosing structures and joints. Materials of the VI International Scientific and Practical Conference “Investments, construction, real estate as a mate- rial basis for modernization and innovative development of the economy”. Tomsk. 2016. Part 1, pp. 485–489. (In Russian).
8. Ovsyannikov S.N., Skripchenko D.S. Investigation of the soundproofing properties of materials under various static loads. Izvestiya vuzov. Tekhnologiya tekstil’noi promyshlen- nosti. 2016, No. 4 (364), pp. 40–44. (In Russian). м9. Klyukin I.I. Experimental study of sound-proof gaskets. Zhurnal tekhnicheskoi fiziki. 1950. Vol. 20. No. 5, pp. 590–601. (In Russian).
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V.P. GUSEV, Doctor of Sciences (Engineering) (gusev-43@mail.ru), A.V. SIDORINA, Engineer Scientific-Research Institute of Building Physics of the Russian Academy architecture and construction sciences (21, Lokomotivniy Driveway, Moscow,127238, Russian)

Acoustic Investigations of Insulation Coating on Piping Air and Gas Systems Air and gas piping Systems (ducts and HVAC systems, technological pipes gas systems, etc.) are often sources of noise, negatively affecting the person in his field of work, living and rec-reation. Virtually the only way to protect from it is to improve the sound insulation of pipelines through walls coverings. The article is devoted to experimental investigations of such coatings, re-lated to their acoustic possibilities (effects). Considered depending on the types of physical and technical parameters of the materials used, the thickness and the sequence layers, as well as to the shape of the cross-section, diameter and wall thickness of the pipes. It is found that the sound in-sulation of the flat design is substantially lower than the curved, in the range of low frequencies, are comparable to the average and slightly higher than at high frequencies. This excludes the use of the theory of sound insulation of flat designs for sound insulation properties of walls research pipe-lines with multilayer coatings

Keywords: Piping air, gas systems, noise, soundproof cover.

For citation: Gusev V.P., Sidorina A.V. Acousticc investigations of insulation on piping air and gas sistems. Stroitel’nye Materialy [Construction Materials]. 2017. No. 6, pp. 59–62. (In Russian).

References
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H.A. QAIS, Engineer (hamza.qais@mail.ru); N.N. MOROZOVA, Candidate of Sciences (Engineering) (ninamor@mail.ru) Kazan State University of Architecture and Engineering (1, Zelenaya Street, Kazan, 420043, Russian Federation)

Properties of Natural Zeolite for Producing High-Strength Fine Concrete Results of the study of natural zeolite from Egypt are presented. To establish comparative dependences of the rates of natural zeolite from the Sinai Peninsula of Egypt with mineral additives of the Russian market of building materials, natural zeolite-containing marl of the Tatarsko-Shatrashanskoe Deposit, silica fume, metakaolin were used. It is established that the water-aggregate ratio of powders studied increases in the following sequence: zeolite from Egypt, ground sand, silica fume, zeolite-containing marl, and metakaolin. The limit shear stress of water-mineral pastes is calculated according to reotechnological indexes, their plasticizing sensitivity to liquefiers of different chemical nature is determined. The pozzolanic activity of natural zeolite concerning CaO absorption which is equal to 510 g/l is researched, the change in pH of the medium of hydrating zeolite-cement suspen- sions is determined, the value of which declined to 12.7. Fine cement concretes with strength from 75 to 86 MPa with a content of the natural zeolite from Egypt – 5 and 10% have been obtained.

Keywords: natural zeolite, pH of medium, policarboxylate, naphthalene-formaldehyde and mineral additives, high-strength fine concrete.

For citation: Qais H.A., Morozova N.N. Properties of natural zeolite for producing high-strength fine concrete. Stroitel’nye Materialy [Construction materials]. 2017. No. 6, pp. 63–68. (In Russian).

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G.I. YAKOVLEV1, Doctor of Sciences (Engineering) (gyakov@istu.ru), A.F. GORDINA1, Candidate of Sciences (Engineering), I.S. POLYANSKIKH 1, Candidate of Sciences (Engineering); H.-B. FISHER2 , Doctor-Engineer (hans-bertram.fischer@uni-weimar.de); N.C. RUZINA 1, Student, E.V. SHAMEEVA1 , Student, M.E. KHOLMOGOROV1, Student
1 Kalashnikov Izhevsk State Technical University (7, Studencheskaya Street, Izhevsk, 426069, Russian Federation)
2 Bauhaus-Universit ät Weimar (8, Geschwister-Scholl-Straβe, 99423 Weimar, Germany)

Gypsum Compositions Modified with Portland Cement and Metallurgic Dust Main results of the research in the influence of a complex additive on the basis of metallurgical dust and Portland cement on the structure and properties of the gypsum composite are presented. Metallurgic dust, in composition of which complex oxides of iron dominated, was used in the course of the research, the age of the modifier is over 4 years. It is proved that the introduction of complex additives improves physical-mechanical properties of gypsum compositions including the increase in the limits of compression strength by 30%, and reduc- tion in the water absorption. Modifiers, metallurgical dust, and Portland cement influence on the processes of hydration and structure formation of gypsum binders that leads to the for- mation of amorphous products of hydration on the basis of calcium hydro-silicates which bond crystalline hydrates of calcium, fill the pore space of the matrix thus providing the growth of strength characteristics of the material.

Keywords: gypsum binders, Portland cement, metallurgical dust, physical-mechanical characteristics, microstructure.

For citation: Yakovlev G.I., Gordina A.F., Polyanskikh I.S., Fisher H.-B., Ruzina N.C., Shameeva E.V., Kholmogorov M.E. Gypsum compositions modified with portland cement and metal lurgic dust. Stroitel’nye Materialy [Construction Materials]. 2017. No. 6, pp. 76–79. (In Russian).

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