硅酸盐通报2017，Vol.36Issue(4)：1266-1271,6.
-3 ℃养护下考虑矿物掺合料影响的水泥水化程度计算模型
Calculation Model of Cement Hydration Degree under the Influence of Mineral Admixture at-3 ℃
摘要
Abstract
Aiming at the problems of concrete maintenance in the engineering construction in permafrost regions, by 10%, 20% and 30% of the ground granulated blast furnace slag(GGBS) and fly ash(FA) replacing cement content, the hydration heat of cement pastes with 0.38 water cement pastes at different ages was tested under the condition of constant temperature curing at-3 ℃, and the hydration degree of cement was calculated.The influence of age and mineral admixtures on the hydration degree of cement was analyzed, and the calculation model of the hydration degree of cement was established.The results show that the-3 ℃ constant temperature curing, mineral admixture replacing cement, the hydration degree of cement paste can be reduced, FA to reduce the degree of hydration value than GGBS.With the increase of the age, the effect of mineral admixtures on the hydration degree of cement is gradually decreased with the increase of the age of the same mineral admixture.At the same time, with the increase of mineral admixture, the effect of mineral admixtures on the hydration degree of cement is gradually increasing.The cement hydration degree were mixed with 15% FA and GGBS were calculated by using the model, compared with the measured values, the deviation is less, higher prediction accuracy.关键词
矿物掺合料/水泥水化/水化程度/计算模型/龄期Key words
mineral admixture/cement hydration/hydration degree/calculation model/age分类
建筑与水利引用本文复制引用
代金鹏,王起才,邓晓,张瑞稳,谢松林..-3 ℃养护下考虑矿物掺合料影响的水泥水化程度计算模型[J].硅酸盐通报,2017,36(4):1266-1271,6.基金项目
长江学者和创新团队发展计划滚动资助(IRT_15R29) （IRT_15R29）
国家自然科学基金资助项目(51268032) （51268032）
兰州交通大学优秀科研团队(201606) （201606）
