Study on Temperature Effect of Hydration Behavior of Cement Pastes

7th Annual International Conference on Materials Science and Engineering

Lv, Quanhong^1 ; Ren, Zheng^2 ; Xiao, Lianzhen^1

School of Materials Science and Engineering, Wuhan Institute of Technology, Wuhan, China^1

HUAXIN CEMENT CO. LTD, Wuhan, China^2

关键词: Curing temperature;    Effect of temperature;    Effects of temperature;    Hydration behaviors;    Hydration heat;    Hydration reaction;    Hydration systems;    Water-cement ratio;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/562/1/012084/pdf
DOI  :  10.1088/1757-899X/562/1/012084

来源: IOP

【 摘 要 】

The effects of temperature on hydration reaction of cement pastes with various water-cement ratios were studied by testing the hydration heat and electrical resistivity at different temperatures (10°C, 20°C, 30°C and 40°C). The results showed that the cement paste had a faster rate of hydration heat at a higher temperature. When the curing temperature increased from 10°C to 40°C, the rate of hydration heat doubled for each 10°C. Additionally, the influence of temperature on the ions migration among the pores in hydration system was eliminated by correcting the electrical resistivity with various temperatures, which the effect of temperature on the electrical resistivity can be obtained. The higher temperature caused a higher electrical resistivity, changing water-cement ratio does not affect the law of temperatures on electrical resistivity and hydration heat.