Preparation and research of concrete shrinkage reducing agent

Yanmei Lin

doi:10.1117/12.2592373

21 January 2021 Preparation and research of concrete shrinkage reducing agent

Yanmei Lin

Proceedings Volume 11767, 2020 International Conference on Optoelectronic Materials and Devices; 117670P (2021) https://doi.org/10.1117/12.2592373
Event: 2020 International Conference on Optoelectronic Materials and Devices, 2020, Guangzhou, China

Abstract

Through the dispersion performance, surface tension, and concrete performance test of a single shrinkage reduction component, two kinds of shrinkage reduction components with better shrinkage performance were selected for compounding in different proportions to prepare a concrete composite shrinkage reducer P-3. The performance test results show that, the shrinkage reducing agent P-3 can greatly reduce the surface tension of the aqueous solution and has a good shrinkage reduction effect on concrete. When the mixing amount was 0.5%, the 7d concrete shrinkage rate reached 37%, and the 28d shrinkage rate was 35%. The effect of the shrinkage reducing agent on cement slurry hydration was studied by microcalorimeter, and then the mechanism of the shrinkage reducing agent was studied.

Citation Download Citation

Yanmei Lin "Preparation and research of concrete shrinkage reducing agent", Proc. SPIE 11767, 2020 International Conference on Optoelectronic Materials and Devices, 117670P (21 January 2021); https://doi.org/10.1117/12.2592373

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