Structure Formation and Properties of Concrete Based on Organic Hydraulic Binders
https://doi.org/10.21122/2227-1031-2020-19-3-181-194
Abstract
The article addresses the issues of structure formation of road composite materials containing hydraulic (рortland cement) and organic (bitumen) binders. It has been determined that organic and hydraulic binders, being thermodynamically incompatible, are capable of interaction and complement each other. Structure formation processes are associated with interphase transition layers interaction mechanism and the direct formation of phase contacts with cement crystallohydrates. The interphase boundary is diffuse and is established through interphase transition layers. The emergence of interfacial layers is thermodynamically advantageous, since it contributes to a decrease in Gibbs free energy and does not contradict modern concepts of solid state physics. It was established that with cement content of about 30 % of complex bitumen-cement binder volume, there will appear (nucleate) phase contacts that will prevail in the binder structure when the cement content is more than 60 %. In the case phase contacts prevail, concrete will demonstrate significant strength at high temperatures, but low temperature and fatigue crack resistance, which will lead to their durability loss. The cement content of 30–40 % of the total complex binder can be considered optimal.
Keywords
concrete based on organic-hydraulic binder,
structure,
bitumen,
cement,
interphase layer,
phase contact,
filler
Supporting agencies: This work was supported by the Henan Center for Outstanding Overseas Scientists under Grant number GZS2018006; National Key R&D Program of China (YS2018YFE010143); Henan Province Science and Technology Major Project from the Department of Science and Technology of Henan Province under Grant number 151100310700; National Science-technology Support Plan Project from the Ministry of Science and Technology of the People Republic of China under Grant number 2015BAF07B08; Intergovernmental International Cooperation on Science and Technology Key Innovation Project from the Ministry of Science and Technology of the People Republic of China under Grant number 2016YFE0111000.
About the Authors
B. M. Khroustalev
Belаrusian National Technical University
Belarus
Belarus
Address for correspondence: Khroustalev Boris М. – Belаrusian National Technical University, 65, Nezavisimosty Ave., 220013, Minsk, Republic of Belarus. Tel.: +375 17 293-93-52
U. A. Veranko
Science and Technology Park of Belarusian National Technical University “Polytechnic”;
Henan Center for Outstanding Overseas Scientists, Henan Gaoyuan Highway Maintenance Technology Co., Ltd
Belarus
Minsk
Belarus
Minsk
V. V. Zankavich
Henan Center for Outstanding Overseas Scientists, Henan Gaoyuan Highway Maintenance Technology Co., Ltd
China
Xinxiang
China
Xinxiang
Yu. G. Aliakseyeu
Science and Technology Park of Belarusian National Technical University “Polytechnic”
Belarus
Minsk
Belarus
Minsk
Yue Xuejun
National Engineering Laboratory of Highway Maintenance Equipment, Henan Gaoyuan Highway Maintenance Technology Co., Ltd
China
Xinxiang
China
Xinxiang
Bo Shang
National Engineering Laboratory of Highway Maintenance Equipment, Henan Gaoyuan Highway Maintenance Technology Co., Ltd
China
Xinxiang
China
Xinxiang
Jicun Shi
National Engineering Laboratory of Highway Maintenance Equipment, Henan Gaoyuan Highway Maintenance Technology Co., Ltd
China
Xinxiang
China
Xinxiang
References
1.
Review
For citations:
Khroustalev B.M., Veranko U.A., Zankavich V.V., Aliakseyeu Yu.G., Xuejun Yu., Shang B., Shi J. Structure Formation and Properties of Concrete Based on Organic Hydraulic Binders. Science & Technique. 2020;19(3):181-194. https://doi.org/10.21122/2227-1031-2020-19-3-181-194
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