Table of contents
About Constructional Potential of High Performans Concretes Structures with Due Regard for Temperature-Humidity Operational Conditions
A generalized interpretation of the mechanism of interrelation of strength, regularities of humidity deformation and frost-resistance of concretes with their temperature-humidity state is
presented. The system of structural characteristics influencing on the manifestation and realization of the structural potential of the material is also presented. The generalization of the
study results makes it possible to reveal the interrelation between parameters of composition and structure of high performans concretes and the realization of their structural potential
under various temperature-humidity conditions.
Keywords:high performans concretes, structure, strength, humidity deformations, frost-resistance
, Doctor of Sciences (Engineering), Academician of RAACS (firstname.lastname@example.org),
1, Doctor of Sciences (Engineering) (email@example.com); L.V. KIM
, Candidate of Sciences (Engineering) (firstname.lastname@example.org)
Voronezh State University of Architecture and Сivil Engineering (84, 20-letija Oktjabrja Street, 394006, Voronezh, Russian Federation)
2 School of Engineering of the Far Eastern Federal University (Far Eastern Federal University, Housing 12, OPS Russian-2, Vladivostok,
690922, Russian Federation)
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2005. No. 6, pp. 20–21. (In Russian).
3. Berkman A.S., Mel’nikova I.G. Struktura i morozostoikost’
stroitel’nykh materialov [Structure and frost resistance of
building materials] Moscow: Gosstroiizdat 1962. 164 p.
4. Gorchakov G.I. Influence of ice formation in a concrete
time on frost resistance. Beton i zhelezobeton. 1977. No. 9,
pp. 35–37. (In Russian).
5. Dobshits L.M. Physico-chemical model of the fracture of
concrete under alternate maintenance-thawing. Vestnik
grazhdanskikh inzhenerov. 2009. No. 3 (20), pp. 104–110.
6. Gorchakov G.I. Sostav, struktura i svoistva tsementnykh
betonov [The composition, structure and properties of
cement concrete]. Moscow: Stroiizdat. 1976. 144 p.
7. Lykov, A.V. Yavleniya perenosa v kapillyarno-poristykh
telakh [The transfer phenomena in capillary and porous
bodies]. Moscow: Gostekhizdat. 1954. 320 pp.
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Theoretical basis. Bulletin RAASN OSN. 1996. Vol. 1,
pp. 12–14. (In Russian).
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svoistva kapil-lyarno-poristykh tel [Thermodynamic and
figurative properties of capillary and porous bodies].
Chelyabinsk: South Ural Book Publishers.1970. 202 p.
10. Bazhenov Yu.M., Chernyshov E.M., Korotkikh D.N.
Designing of structures of modern concrete: the defining
principles and technological platforms. Stroitel’nye
Materialy [Construction Materials]. 2014. No. 3,
pp. 6–14. (In Russian).
Affinity of Structures as a Theoretical Basis for Designing Composites of the Future
Implementation of the law of the affinity of structures allows to create effective systems with anisotropic hardening of the composite, which includes the foundations for responding to
the changing conditions of synthesis and service. It has been established and proved that within the system new fomations are synthesized and nano-, micro- and macrostructure is cre
ated, possessing self-healing ability in mending defects, caused by a particular range of operating loads. When designing the composites of the future it is advisable to use the provi
sions of the law of the affinity with the creation of highly reliable internal structure of the composite. Theoretical and practical approaches should be the prerequisite for the creation of a
new class of “smart” construction materials with isotropic structure and effective properties.
Keywords: law of affinity structures, materials, composites, functional properties of materials.
V.S. LESOVIK1 Doctor of Sciences (Engineering), Corresponding member of RAACS (email@example.com),
1, Candidate of Sciences (Engineering); I.L. CHULKOVA2
, Doctor of Sciences (Engineering) (firstname.lastname@example.org);
1, Candidate of Sciences (Engineering), A.A. VOLODCHENKO1
, Candidate of Sciences (Engineering)
1 Belgorod State Technological University named after V.G. Shukhova (46, 2Kostyukova Street, Belgorod, 308012, Russian Federation)
2 Siberian automobile and highway academy (5, Mira Avenue, Omsk, 644080, Russian Federation)
1. Lesovik V.S. Chulkov I.L. Upravlenie strukturoobra
zovaniem stroitel’nykh kompozitov: monografiya
[Control of building composite structure formation:
Monograph]. Omsk. SibADI. 2011. 462 p.
2. Lesovik V.S., Zagorodnuk L.H., Chulkova I.L. Law of
the affinity of structures in materials science. Funda
mental’nye issledovaniya. 2014. No. 3. P. 2, pp. 267–
271. (In Russian).
3. Chulkova I.L. Structurization of building composites
on the basis of the affinity structures. Vestnik SibADI.
2012. No. 6, pp. 83–88. (In Russian).
4. Lesovik V.S., Zagorodnuk L.H., Belikov D.A., Shche
kina A.U., Kuprina A.A. Effective dry mixes for repair
and restoration works. Stroitel’nye Materialy [Construc
tion Materials]. 2014. No. 7, pp. 82–85. (In Russian).
5. Lesovik V.S., Zagorodnuk L.H., Shkarin A.V, Beli-
kov D.A., Kuprina A.A. Creating effective insulation
solutions, taking into account the law of affinity struc
tures in construction materials. World Applied Sciences
Journal. 2013. No. 24 (11), pp. 1496–1502.
6. Lesovik, V.S., Zagorodnuk L.H., Elias G.G.,
Belikov D.A. Sukhie stroitel’nye smesi dlya remont
nykh rabot na kompozitsionnykh vyazhushchikh:
monografiya [Dry mixes for repairs on composite bind
ers: monograph]. Belgorod: BSTU. 2013. 147 p.
7. Lesovik V.S. Mospan A.V. Pressed silicate products for
granular aggregates. Izvestiya KGASU. 2012. No. 3,
pp. 144–150. (In Russian).
8. Lesovik V.S., Mospan A.V., Belentsov Yu.A. Silicate
products to granular aggregates for earthquake engi
neering. Vestnik BGTU im. V.G. Shukhova. 2012. No. 4,
pp. 62–65. (In Russian).
9. Kuprina A.A., Lesovik V.S., Zagorodnyk L.H., Elistrat-
kin M.Y. Anisotropy of materials properties of natural
and man-triggered origin. Research Journal of Applied
Sciences. 2014. Vol. 9. No. 11, pp. 816–819.
Deformations of High-Strength Lightweight Concrete Having Hollow Microspheres and Method of Reduce Them*
The paper presents the researching results of deformation properties of the high-strength lightweight concrete with hollow microspheres. The method of increasing the fracture tough
ness of high-strength lightweight concrete with aluminosilicate microspheres by using the modifier as a coupling agent on the surface of the microparticles of aggregate is proposed.
The hollow microspheres are perspective filler for lightweight concrete with high performance characteristics; the increasing of content of the spherical microparticles in the concrete
composition promotes to forming close-packed structure with low deformations. The coefficient of fracture toughness of the high-strength lightweight concrete is comparable with the
same parameter for fine-grained high-strength heavy concrete (more than 0.1) and is limited by strength characteristics of micrometric particles of aggregate. It is to create the active
iron-silica shell on the surface of the hollow filler, which interacts with the major components and products of the cement hydration and reinforces the phase boundary. The proposed
method of modifying allows to reduce the longitudinal and transverse deformations of the high-strength lightweight concrete at 7–12% and 8.5–16.5% respectively. The elastic modulus
of the high-strength lightweight concrete is 6–8.5 GPa, and Poisson’s ratio is 0.08–0.14. The nanomodifier reduces the intensity of the cracking under the influence of shrinkage stress
es of high-strength lightweight concrete by 56.9%.
Keywords: high-strength lightweight concrete, structural lightweight concrete, hollow microspheres, nanoscale modifier, nanotechnology.
A.S. INOZEMTCEV, Candidate of Sciences (Engineering) (InozemcevAS@mgsu.ru),
E.V. KOROLEV, Doctor of Sciences (Engineering), director, research and educational center «Nanomaterials and Nanotechnology»
Moscow State University of Civil Engineering (26, Yaroslavskoe Highway, Moscow, 129337, Russian Federation)
1. Wilson H.S., Malhotra V.M. Development of high
strength lightweight concrete for structural applica
tions. International Journal of Cement Composites
and Lightweight Concrete. 1988. Vol. 10. Iss. 2,
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lightweight concrete made with scoria aggregate con
taining mineral admixtures. Cement and Concrete
Research. 2003. Vol. 33. Iss. 10, pp. 1595–1599.
3. Costa H., Ju
´lio E., Lourenço J. New approach for
shrinkage prediction of high-strength lightweight ag
gregate concrete. Construction and Building Materials.
2012. Vol. 35, pp. 84–91.
4. Korolev E.V., Smirnov V.A. Using particle systems to
model the building materials. Advanced Materials
Research. 2013. Vol. 746, pp. 277–280.
5. Tany1ld1z1 H. Post-fire behavior of structural light
weight concrete designed by Taguchi method.
Construction and Building Materials. 2014. Vol. 68,
6. Ming Kun Y.M., Bin M.H., Chin A.B., Chian Y.M.
Effects of heat treatment on oil palm shell coarse ag
gregates for high strength lightweight concrete.
Materials & Design. 2014. Vol. 54, pp. 702–707.
7. Daniel M., Franco Z., lvaro P., Mauricio L. High
strength lightweight concrete (HSLC): Challenges
when moving from the laboratory to the field.
Construction and Building Materials. 2014. Vol. 56,
8. Kockal N.U., Ozturan T. Strength and elastic proper
ties of structural lightweight concretes. Materials &
Design. 2011. Vol. 32 (4), pp. 2396–2403.
9. Sajedi F., Shafigh P. High-Strength Lightweight
Concrete Using Leca, Silica Fume, and Limestone.
Arabian Journal for Science and Engineering. 2012.
Vol. 37. No. 7, pp. 1885–1893.
10. Inozemtcev A.S., Korolev E.V. Hollow microspheres
is an efficient filler for high-strength lightweight con
crete. Promyshlennoe i grazhdanskoe stroitel’stvo. 2013.
No. 10, pp. 80–83. (In Russian).
11. Oreshkin D.V., Semenov V.S., Rozovskaya T.A.
Light-weight backfill mortars with antifreeze additives
for the permafrost conditions. Neftyanoe khozyaistvo.
2014. Vol. 4, pp. 42–45. (In Russian).
12. Oreshkin D.V. Effective lightweight tamping solutions
for the conditions of abnormally low reservoir pres
sures and permafrost. Neftyanoe khozyaistvo. 2008.
No. 1, pp. 50–53. (In Russian).
13. Semenov V., Rozovskaya T., Oreshkin D. Properties
of the dry masonry mixtures with hollow ceramics mi
crospheres. Advanced Materials Research. 2014.
Vol. 860–863, pp. 1244–1247.
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the opportunities and the practice of using nanotech
nology methods. Inzhenerno-stroitel’nyi zhurnal. 2009.
No. 6, pp. 25–33. (In Russian).
15. Inozemtcev A.S. High-strength lightweight concrete
mixtures based on hollow microspheres: technological
features and industrial experience of preparation.
IOP Conference Series Materials Science and Enginee
ring. 2015. Vol. 71 (1). http://iopscience.iop.org/1757-
899X/71/1/012028 Open access.
16. Inozemtcev A.S. Average density and porosity of high-
strength lightweight concrete. Inzhenerno-stroitel’nyi
zhurnal. 2014. No. 7 (51), pp. 31–37. (In Russian).
17. Leshchinskii M.Yu. Ispytanie betonov [Test of the
concrete]. Moscow: Stroiizdat. 1980. 360 p.
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19. Grishina A.N., Korolev E.V. Efficient nano-scale ad
mixture for foam stability improvement of cellular
concretes. Vestnik MGSU. 2012. No. 10, pp. 159–165.
20. Inozemtcev A.S., Korolev E.V. Structuring and prop
erties of the structural high-strength lightweight con
cretes with nanomodifier BisNanoActivus. Stroitel’nye
Materialy [Construction Materials]. No. 1–2, pp. 33–
37. (In Russian).
Shear Strength of Concrete Reinforced with Basalt Fiber Reinforced Polymer Bars (BFRP)
The application of fiber reinforced polymers in construction became an important research topic in construction. Reinforced polymers have many advantages such as high tensile
strength, corrosion resistance, light weight and non conductivity. This study presents an experimental investigation into the direct shear behavior of concrete, reinforced using basalt
fiber reinforced polymer (BFRP) bars, by testing Push-off specimens. The main objective of the study is to compare the behavior of concrete S-shaped push-off specimens reinforced
using ordinary mild steel bars or BFRP bars to the plain control specimens. Twelve specimens were molded and tested under compression force. They were divided into four groups dif
fering in the type and detailing of their main reinforcement. Based on the obtained results, the equations used to predict the shear capacity of reinforced concrete were modified to suit
the reduced stiffness of the BFRP.
Keywords: basalt fiber reinforced polymer, concrete, strength, shift.
M. SABER1, Assistant Lecturer (Eng.email@example.com); K. SARAYKINA2, Master (Ksenya_s2004@mail.ru); G. YAKOVLEV3, Doctor of Sciences
(Engineering) (firstname.lastname@example.org); A. SHERIF
1, Professor of Concrete Structures and Vice Dean of Faculty of Engineering – Helwan University
(email@example.com), S. ABD ELNABY
1, Professor of Materials (firstname.lastname@example.org), S. HELMY1
, Professor оf Concrete Structures (email@example.com)
1 Egyptian Russian University (Cairo-Suez road, Badr City, 11829, Egypt)
2 Perm State National Research Polytechnic University (29, Komsomolskiy Avenue, Perm, 614990, Russian Federation)
3 Izhevsk State Technical University named after M.T. Kalashnikov(7, Studencheskaya Street, Izhevsk, 426069, Russian Federation)
1. Ibell T.J., Burgoyne C.J. The shear strength of concrete
containing fibre-reinforced plastic (FRP) reinforcement. The
Conference on our World in Concrete and Structures. 1998.
Singapore, pp. 77–82.
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high performance concrete using push off tests. Journal of
Applied Engineering Sciences. 2011. 1(14). Issue 2, pp. 77–82.
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cracked concrete with compressive stresses normal to the
shear plane. Journal of the Egyptian society of Engineers. 1995.
Vol. 34, No. 1.
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Mechanics and Design. Chapter 16: Shear Friction,
Horizontal Shear Transfer, and Composite Concrete Beams.
Sixth Edition. Prentice Hall, 2011. 1177 p.
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for Structural Concrete (ACI 318-11) and Commentary,
(ACI 318R-11), American Concrete Institute, Farmington
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of Concrete Structures, Housing and Building National
Research Center, Cairo, Egypt, Friberg, B.F., 1940. Design
of Dowels in Transverse Joints of Concrete Pavements,
Proceedings, American Society of Civil Engineers, 105,
7. ACI Committee 440. (2003). “Guide for the Design and
Construction of Concrete Reinforced with FRP Bars,” ACI
440.1R-03, American Concrete Institute, Farmington Hills,
8. ACI Committee 440. (2006). “Guide for the Design and
Construction of Concrete Reinforced with FRP Bars,” ACI
440.1R-06, American Concrete Institute, Farmington Hills,
9. CAN/CSA S806–02. (2002). “Design and Construction of
Building Components with Fibre Reinforced Polymers”,
Canadian Standards Association, Rexdale, Ontario, 177 p.
10. Machida, A., ed. (1997). “Recommendation for Design and
Construction of Concrete Structures Using Continuous Fibre
Reinforcing Materials,” Concrete Engineering Series 23,
Japan Society of Civil Engineers, JSCE, Tokyo, Japan, 325 p.
11. Fib Task Group 9.3, FRP reinforcement in RC structures,
Technical report, fib Bulletin No. 40, September 2007.
12. CNR-DT 203/2006, National Research Council, Advisory
Committee On Technical Recommendations For
Construction. Guide for the Design and Construction of
Concrete Structures Reinforced with Fiber-Reinforced
Polymer Bars. CNR-DT 203/2006, June 2007, Rome.
13. ISIS-M03-01. (2001). Reinforcing concrete structures with
fiber reinforced polymers. The Canadian Network of Centers
of Excellence on Intelligent Sensing for Innovative Structures,
ISIS Canada, University of Winnipeg, Manitoba, 81 p.
14. Shilang Xu, Hans W. Reinhardt. Shear fracture on the basis of
fracture mechanics. Otto-Graf-Journal. 2005. Vol. 16, p. 21.
15. Alan H. Mattock and Neil M. Hawkins. shear transfer in
reinforced concrete—recent research. Journal of the
Prestressed Concrete Institute. 1972. Vol. 17. No. 2, pp. 55–75.
Influence of strain on own porosity and properties of cement stone
Models establishing the relationship between the total porosity of cement stone and its properties such as the ultimate compressive strength, E-modulus and creep coefficient are pro
posed. Compliance of models with the experimental data is shown. Models make it possible to predict changes in the strength and deformation properties of cement stone depending
on changes in its total porosity under the influence of prescription or technological factors.
Keywords: cement stone, porosity, ultimate compressive strength , E-modulus , creep coefficient, deformation properties, the model, the expanding additive, deformation of expansion.
G.V. NESVETAEV1, Doctor of Sciences (Engineering); G.S. KARDUMYAN2, Candidate of Sciences(Engineering) (firstname.lastname@example.org)
1 Rostov State University of Civil Engineering (162, Sotcialisticheskaya Street, Rostov-on-Don, 344022, Russian Federation)
2 Research, Design and Technological Institute of Concrete and Reinforced Concrete named after A.A. Gvozdev (6/5, Institutskaya Street, Moscow,109428,
1. Nesvetaev G.V., Kardumyan G.S. About Porosity of
Cement Stone with Due Regard for its Own Deformations
at Hardening. Beton i zhelezobeton. 2013. No. 1, pp. 13–
15. (In Russian).
2. Nesvetaev G.V., Kardumyan G.S. Strength of Cement
Stone with Super-plasticizers and Organic-Mineral
Modifiers with Due Regard for its Own Deformations at
Hardening. Beton i zhelezobeton. 2013. No. 5, pp. 6–8.
3. Babkov V.V., Mokhov V.N., Kapitonov S.M., Komo
khov P.G.: Structuroobrazovanie I razrushenie cement
nyh betonov [Structure Formation and Deterioration of
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of Cement Concretes]. Мoscow: Stroyizdat. 1979. 344 p.
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Hydration Properties of Slag and Silica Fume Blended
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“Phoenix”. 2011. 381 p.
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Cement and High-Strength Concretes with Compensated
Shrinkage. Concrete and Reinforced Concrete in the Third
Millennium – 2
International Conference. Rostov-on-
Don: 2002, pp.275–281. (In Russian).
10. Chartschneko I.Ya. Theoretische grundlagen zur anwend
ung von quellzementen in der baupraxis. Habilitation.
Weimar. 1995. 197 p.
11. Kaprielov S.S., Sheynfeld A.V., Kardumyan G.S.,
Dondukov V.A. Structure and Properties of High-Strength
Concretes Containing the Complex Organic-Mineral
Modifier “Embelit”. Concrete and Reinforced Concrete –
Ways of Development – II Russian International Conference
on concrete and reinforced concrete. Moscow: 2005. Vol. 3,
pp. 657–671. (In Russian).
12. Nesvetaev G.V., Kardumyan G.S. Modulus of Cement
Stone Elasticity with Superplasticizers and Organic
Mineral Modifiers with Due Regard for its Own
Deformations at Hardening. Beton i zhelezobeton. 2013.
No. 6, pp. 10–13. (In Russian).
13. Kaprielov S.S., Sheynfeld A.T., Kardumyan G.S.,
Dondukov V.A. Modified High-Strength Fine Concretes
with Improved Deformation Characteristic. Beton i zhe
lezobeton. 2006. No. 2, pp. 2–7. (In Russian)
14. Nesvetaev G.V., Kardumyan G.S. Creep of Cement
Stone and Concrete with Modifying Additives. Beton i
zhelezobeton. 2014. No. 4, pp. 6–8. (In Russian).
15. Kaprielov S.S., Karpenko N.I., Sheynfeld A.V., Kuznetsov
E.N. About Regulation of Elasticity Modulus and Creep of
High-Strength Concretes with Modifier MB-50C. Beton i
zhelezobeton. 2003. No. 6, pp. 8–12. (In Russian).
16. Vitkup L.A. Research in Influence of Concrete Density on
Value of Creep Deformations. Problems of Creep and
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pp. 72–75. (In Russian).
17. Kaprielov S.S., Sheynfeld A.V., Kardumyan G.S.,
Dondukov V.G. A malticomponent modifier for shrink-
age-compensated or self-stressed high strength concrete
Eight CANMET/ACI International Conference on super-
plasticisers and other chemical admixtures in concrete.
Sorento. 2006, pp. 87–102.
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Concrete Columns in High-Rrise Building. High-Strength
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Features of Structure Formation During Heat Treatment of Steel Fiber Reinforced Concrete
In this article are listed the results of the theoretical and practical research in structure formation of steel fiber reinforced concrete during heat treatment. It was found that in a certain
combination of the composition of the concrete matrix and the mode of heat treatment may receive volume-prestressed steel fiber reinforced concretes. Determined the residual
deformations of various compositions of steel fiber reinforced concretes after heat treatment. Determined the main conditions ensuring prestressed state formation in steel fiber after heat
treatment. The equations obtained which are showing the dependence of strength characteristics after heat treatment and the hardening in normal conditions. Founded that the formation
of prestressed fiber carcass can increase strength characteristics of steel fiber reinforced concrete up to 25% in compare with the same compositions was curing in normal conditions.
Keywords: steel fiber reinforced concrete, heat treatment, volume prestressing, strength characteristics.
V.G. SOLOVEV1, Candidate of Sciences (Engineering) (email@example.com),
1, Doctor of Sciences (Engineering) (firstname.lastname@example.org); H.-B. FISCHER2
, Dr. Engineer
1 Moscow State University of Civil Engineering(26, Yaroslavskoe Highway, Moscow, 129337, Russian Federation)
ät Weimar (8, Geschwister-Scholl-Straβe, Weimar, 99423, Germany)
1. Sukontasukkul P., Pomchiengpin W., Songpiriyakij S.
Post-crack (or post-peak) flexural response and tough
ness of fiber reinforced concrete after exposure to high
temperature. Construction and Building Materials. 2010.
No. 24, pp. 1967–1974.
2. Solovyev V.G., Buryanov A.F., Yelsufyeva M.S. Features
of the production of steel fibre concrete products and
designs. Stroitel’nye Materialy [Construction Materials].
2014. No. 3, pp. 18–21. (In Russian).
3. Yan Z., Pantelides C.P. Concrete column shape modifi
cation with FRP shells and expansive cement concrete.
Construction and Building Materials. 2011. Vol. 25.
Issue 1, pp. 396–405.
4. Cao S.P., Zhou Q.F., Peng Y.L., Li G.X. Effects of expan
sive agent and steel fiber on the properties of the fly ash ce
ramsite lightweight aggregate concrete. Applied Mechanics
and Materials. 2013 Vol. 357–360, pp. 1332–1336.
5. Wang A., Deng M., Sun D., Mo L., Wang J., Tang M.
Effect of combination of steel fibers and MgO-type ex
pansive agent on properties of concrete. Journal of Wuhan
University of Technology-Materials Science Edition. 2011.
Vol. 26, pp. 786–790.
6. Elsuf’eva M.S., Solovyev V.G., Bur’yanov A.F. Applying
of expanding additives in the concrete reinforced steel fi
ber. Stroitel’nye Materialy [Construction Materials].
2014. No. 8, pp. 60–63. (In Russian).
7. Bazhenov Yu.M. Tekhnologiya betona [Technology of
Concrete]. Moscow: ASV. 2011. 528 p.
8. Corinaldesi V., Nardinocchi A., Donnini J. The influ
ence of expansive agent on the performance of fibre rein-
forced cement-based composites. Construction and
Building Materials. 2015. Vol. 91, pp. 171–179.
Simulation of Drying Kinetics of Sheet Material at Reversible Supply of Drying Gas*
A non-linear cell mathematical model of drying kinetics of long-measuring sheet material by parallel gas flow is proposed. The model allows calculating the drying kinetics based on the
local state of material and gas and takes into account longwise heat conduction and moisture conduction. It is shown that the reverse of gas supply at rationally chosen moments of
time allows considerable decrease of the non-homogeneity of moisture content distribution during drying process.
Keywords: sheet porous material, moisture content, drying, heat emission, moisture emission, heat conduction, moisture conduction, cell model, state vector, transition matrix, reverse
of gas supply.
S.V. FEDOSOV1, Doctor of Sciences (Engineering), Academician of RAACS, President, A.A. KOTKOV1, Engineer;
2, Doctor of Sciences (Engineering); N.N. YELIN1
, Doctor of Sciences (Engineering)
1 Ivanovo State Polytechnic University (20, 8 Marta Street, Ivanovo, 153037, Russian Federation)
2 Ivanovo State Power Engineering University (34, Rabfakovskaya Street, Ivanovo, 153003, Russian Federation)
1. Lykov A.V. Teoriya syshki [Theory of Drying]. Moscow:
Energiya. 1968. 472 p.
2. Sazhin B.S., Sazhin V.B. Nauchnye osnovy tekhniki su
shki [Scientific foundations of drying technology].
Moscow: Nauka.1997. 448 p.
3. Lykov A.V. Teplomassoobmen: spravochnik [Heat and
mass exchange: handbook]. Moscow: Energiya. 1978. 480 p.
4. Lykov A.V. Teplo- i massoobmen v protsessakh sushki.
Uchebnoe posobie [Heat and mass exchange in processes
of drying. Manual]. Moscow: Gosenergoizdat. 1956. 464 p.
5. Shestakov N.I., Aksenchik K.V. Method of calculation of
thermostressed and moisturestressed state of concrete
flagstones during heat and humidity treatment. Stroitel’nye
Materialy [Construction Materials]. 2012. No. 11,
pp. 77–80. (In Russian).
6. Fedosov S.V., Yelin N.N., Mizonov V.E., Poroshin N.R.
A non-linear cell model of interconnected heat and mois
ture transfer in building envelop with internal source of
moisture. Stroitel’nye Materialy [Construction Materials].
2011. No. 8, pp. 22–24. (In Russian).
7. Mizonov V.E., Yakimytchev P.V., Zaitsev V.A., Yelin N.N.
Modeling of contact heat utilizer of exhaust drying agent.
Izvestiya VUZov. Khimiya i khimicheskaya tekhnologiya.
2011. Vol. 54. Iss. 10, pp. 127–129. (In Russian).
8. Mizonov V., Yelin N., Yakimychev P. A cell model to
describe and optimize heat and mass transfer in contact
heat exchangers. Energy and Power Engineering. 2011.
No. 3, pp. 144–149. (In Russian).
Structural Factors Ensuring the Frost Resistance of Cement Foam Concretes
For macro-porous concretes, a generalized interpretation of the mechanism of frost destruction with the substantiation of structure parameters criterial for its regulatory is proposed.
Results of dilatometric studies of cement foam concretes, which revealed the interrelationship of the parameters of their structure with the measure of deformation of the material during
the freezing of water-saturated samples, are presented.
Keywords: foam concretes, structure, frost resistance, dilatometry.
G.S. SLAVCHEVA, Doctor of Sciences (Engineering) (email@example.com)
Voronezh State University of Architecture and Сivil Engineering (84, 20-letija Oktjabrja Street, 394006, Voronezh, Russian Federation)
1. Guzeev E.A., Piradov K.A., Mamaev T.L. Evaluation of
frost resistance of concrete in the parameters of fracture
mechanics. Beton i zhelezobeton. 2000. No. 3, pp. 26–27.
2. Aleksandrovskii S.V. Aleksandrovskii V.S. Basic model
theory of freezing wet porous bodies. Beton i zhelezobeton.
2005. No. 6. pp. 20–21. (In Russian).
3. Dobshits L.M. Physico-chemical model of the fracture of
concrete under alternate maintenance-thawing. Vestnik
grazhdanskikh inzhenerov. 2009. No. 3 (20), pp. 104–110.
4. Zotkin A.G. The air pores and frost resistance of con
crete. Tekhnologii betonov. 2011. No. 5–6, pp. 18–21.
5. Leonovich S.N., Zaitsev Yu.V., Piradov K.A. The physi
cal model of the kinetics of destruction of concrete in the
heat and humidity effects. Vestnik grazhdanskikh inzhen
erov. 2014. No. 1 (42), pp. 34–36 (In Russian).
6. Chernyshov E. M. Slavcheva, G. S. Frost destruction and
frost resistance of building materials: a modern interpre
tation of the mechanism and management factors. Vestnik
otdeleniya stroitel’nyh nauk RAASN. Vol. 9. Belgorod,
2005, pp. 447–459. (In Russian).
7. Slavcheva G.S., Chernyshov E.M. Influence of structure
of high strength modified concrete on dilatometric effects
when freezing. Vestnik inzhenernoi shkoly DVFU.
Stroitel’nye materialy i izdeliya. 2015. No. 1 (22), pp. 63–
70. (In Russian)
8. Sheinin A.M., Ekkel’ S.V. On the application of dilato
metric method for predicting the frost resistance of con
crete road. Stroitel’nye Materialy [Construction
Materials]. 2004. No. 12, pp. 50–51. (In Russian).
9. Dikun A.D., Fishman V.Ya., Dikun V.N., Nagor
nyak I.N., Alekseev A.V. The practice of applying accel
erated dilatometric method for determination frost resis
tance of concrete in accordance with GOST 10060.3–95.
Stroitel’nye Materialy [Construction Materials]. 2009.
No. 4, pp. 97–101. (In Russian).
Vilnius Gediminas Technical University (Scientific Institute «Insulation») (28, Linkmyanu Street, Vilnius, 08217, Lithuania)
Research of Expanded Polystyrene (EPS) Stress Relaxation Under Uniaxial Loading Conditions
Using Statistical Design Method of Experiments
The results of stress relaxation under uniaxial compression experimental research of expanded polystyrene products with the types of EPS 80/90/100/120 and EPS 150 at a constant
ε0=(1,2-0,2)%, that was fixed at a specific compressive load σс(=0,35·σ10%) acting perpendicular to the surface of products, are presented. The method of mathematical and statistical
experimental design optimization models taking into account the thickness of specimens is proposed to determine the relaxation coefficient Kr at the time t=8 h, the attenuation factor
to reduce the compressive stress Katten and relaxation compliance Jr. The graphical interpretation of the models is presented: depending level line of the relaxation coefficient
Kr at the time t=8 h, relaxation resistance coefficient Kr and compliance with the relaxation Jr to t. On the basis of quantitative experimental values of compliance Jr
with the relaxation in the range of permanent compressive strain ε0=(1,2-0,2)%, the linear equations of interdependence between Jr and Jc(tn=122 days) are given.
Empirical equations for the calculation of the established equilibrium stress at a relaxation are offered.
Keywords: expanded polystyrene (EPS), long-term compression, experimental design, optimisation of specimens thickness, stress relaxation, relaxation compliances, prediction.
S.I VAITKUS, Candidate of Sciences (Engineering) (firstname.lastname@example.org), I.J. GNIP, Candidate of Sciences (Engineering)
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design of experiments. Stroitel’nye Materialy [Construction
Materials]. 2013. No. 10, pp. 49–56. (In Russian).
2. Vaitkus S., Granov V., Gnip I., et al. Stress relaxation in
expanded polystyrene (EPS) under uniaxial loading con
International Conference on Modern Building
Materials, Structures and Techniques. MBMT 2013:
Procedia Engineering. 57 (2013), pp. 1213–1222.
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[Mechanical properties of solid polymers]. Translation
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creep and relaxation processes in foam plastic PS-1 with
different density. 16
International conference “Physics if
durability and plasticity of materials”. Samara, June 2006.
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description of the creep of expanded polystyrene (EPS)
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Belgorod State Technological University named after V.G. Shukhov(46, Kostyukov Street, Belgorod, 308012, Russian Federation)
Features of Clay Rocks Application when Construction Material Production
On the basis of the analysis of literature data and experimental results with due regard for characteristics of composition and properties of aluminum silicate raw materials from sedi
mentation mass, the opportunities of its usage in construction materials as a raw component for production of cement, ceramic, porous aggregates; as a component in composite bind
ers of hydration, air and autoclaved hardening; additives, aggregates and fillers in cement, ceramic, organo-mineral systems are demonstrated. However, on the basis of genetic fea
tures of these non-traditional raw materials there are restrictions on its application. Therefore, in most cases, a modification is required to increase its efficiency. In this paper the expan
sion of fields of application of aluminum silicate rocks from sedimentation mass modified by heat treatment at 300–900
оС is considered. Thermal modification makes it possible to
improve qualitative and techno-economic characteristics of polyfunctional composites for the construction industry.
Keywords: clay rocks, aluminum silicate raw materials, composite binder, construction materials, thermal activation.
M.S. LEBEDEV, Candidate of Sciences (Engineering) (email@example.com), I.V. ZHERNOVSKIY, Candidate of Sciences (Geology and Mineralogy),
E.V. FOMINA, Candidate of Sciences (Engineering), A.E. FOMIN, Master Student
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nologicheskogo universiteta im. V.G. Shukhova. 2011.
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