Effect of C3S content of clinker on properties of fly ash cement concrete
Effect of C3S content of clinker on properties of fly ash cement concrete
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DOI：
10.1016/j.conbuildmat.2019.117840
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发表时间：
2020-04-20
影响因子：
7.4
通讯作者：
Hirao, Hiroshi
中科院分区：
文献类型：
--
作者：
Kipkemboi, Benson;Zhao, Teng;Hirao, Hiroshi
在日本，粉煤灰水泥混凝土由于其强度发展缓慢而很少使用。本研究的目的是提高早期强度发展的粉煤灰水泥混凝土使用水泥增加C3S含量高达72%，在实际的水泥厂生产。研究了水泥石的抗压强度、水化热、自收缩、干燥收缩和收缩开裂倾向。采用三维有限元热应力分析模型对热裂纹抗力进行了模拟。结果表明，提高水泥基中C3S含量可提高粉煤灰水泥混凝土的早期强度、干缩开裂倾向和抗热裂性能。(C)2019爱思唯尔有限公司版权所有。
In Japan fly ash cement concrete is rarely used because its strength development is slow. This study aims to improve early age strength development of fly ash cement concrete using cement with increased C3S content up to 72% manufactured at an actual cement plant. Compressive strength, heat of cement hydration, autogenous shrinkage, drying shrinkage and shrinkage cracking tendency were investigated. Thermal cracking resistance was simulated using 3D FEM thermal stress analysis model. It was established that increasing C3S content in base cement improves early age strength, drying shrinkage cracking tendency and thermal cracking resistance of fly ash cement concrete. (C) 2019 Elsevier Ltd. All rights reserved.