养护温度对矿渣硫铝酸盐水泥水化的影响机理

doi:10.11896/cldb.21100065

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Abstract he compressive strength development, hydration exothermic, drying shrinkage, hydration products and pore structure of slag-calcium sulfoaluminate cement at different temperature (5 ℃, 20 ℃ and 40 ℃) were investigated. The results indicate that, different from Portland cement, the hydration of slag-calcium sulfoaluminate cement accompanies with more ettringite at early hydration stage, but the cumulative heat is lower. Elevated curing temperature results in a higher mechanical strength, but the later compressive strength is significantly higher at 20 ℃, far exceeding that cured at other temperatures. Correspondingly, the cement paste exhibits the most significant shrinkage at 20 ℃, which results from the greater pore wall pressure generated by the evaporation of water from the small pores.

Key words： slag-calcium sulfoaluminate cement curing temperature hydration mechanisms pore structure

Published: 10 June 2023 Online: 2023-06-19

CLC number:

TU528

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	Articles by authors
	XU Linglin
	OUYANG Jun
	YANG Ken
	XU Mingfeng
	ZHOU Jian

Cite this article:

XU Linglin,OUYANG Jun,YANG Ken, et al. Impacts of Curing Temperature on the Hydration of Slag-Calcium Sulfoaluminate Cement[J]. Materials Reports, 2023, 37(11): 21100065-5.

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http://www.mater-rep.com/EN/10.11896/cldb.21100065 OR http://www.mater-rep.com/EN/Y2023/V37/I11/21100065

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