Predicting the strength and maturity of hardening concrete

When predicting the growth of strength and maturity of hardening concrete, the role of the temperature factorshould be taken into account. Taking into account the temperature factor requires at the initial stage of hardening of concrete low positive temperatures and low speed of heating concrete. Th...

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Bibliographic Details
Published in:MATEC Web of Conferences 2018-01, Vol.230, p.3001
Main Authors: Belykh, Irina, Sopov, Viktor, Butska, Larisa, Pershina, Lidiya, Makarenko, Olga
Format: Article
Language:English
Subjects:
Ambient temperature
Cements
Concrete
Concrete structures
Heat
Heat generation
Heating
Hydration
Laboratory tests
Low speed
Mechanical properties
Physical properties
Temperature
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Summary:When predicting the growth of strength and maturity of hardening concrete, the role of the temperature factorshould be taken into account. Taking into account the temperature factor requires at the initial stage of hardening of concrete low positive temperatures and low speed of heating concrete. The level of maximum heating of concrete will depend not only on the exothermy of the cement, but also on the amplitude of the fluctuations in the ambient temperature. The contribution to the cracking of concrete of various types of cements from the point of view of heat release during their hydration is analyzed. The existing models for predicting the character of the set of strength and maturity of concrete on the basis of data on heat dissipation during hydration of cement in concrete structures are analyzed. It is shown that laboratory tests are insufficient to evaluate the nature of heat generation. To effectively predict the physical and mechanical properties, it is necessary to conduct temperature-time monitoring during the concrete hardening in the design to take into account the influence of external factors.
ISSN:2261-236X
2274-7214
2261-236X
DOI:10.1051/matecconf/201823003001