摘要
通过试验,模拟多年冻土区低负温环境,完成了低负温环境下水泥水化的宏观影响因素的研究,确定了入模温度、养护温度、水化速度对水泥水化程度和成熟度的影响,以及在这样的影响因素下其水泥水化随龄期的变化规律,进而为在多年冻土地区的混凝土施工提供重要的理论依据。在持续低负温环境下水泥水化是一个非常复杂的过程,一定龄期内,受其入模温度以及养护温度的影响较大,水化程度以及成熟度越小,其混凝土的强度增长越低。本文通过对以上五个因素的研究,得出了之间的相互影响规律,为进一步研究水泥水化打下坚实的理论支撑,为研究多年冻土区灌注桩混凝土强度发展规律提供了良好的铺垫。
By experiment, simulation low negative temperature environment in permafrost regions, completed a macro factors research of cement hydration at low negative temperature environment, determined the effects of mold temperature, curing temperature, hydration rate on cement hydration degree and maturity, and the changing rule of cement hydration along with age under the influence of such factors, thus providing an important theoretical basis for concrete construction in permafrost regions . Cement hydration is a very complex process in continuous low negative temperature environment, within a certain age, influenced by its into the mold temperature and curing temperature, the smaller the degree of hydration and the maturity, the lower the intensity of the growth of its concrete. Through the study of the above five factors, we obtained the interaction between the law, lay a solid theoretical support for further study of cement hydration, to study permafrost pile concrete strength development rule provides a good bedding.
出处
《硅酸盐通报》
CAS
CSCD
北大核心
2015年第11期3321-3326,共6页
Bulletin of the Chinese Ceramic Society
基金
长江学者和创新团队发展计划(IRT1139)
国家自然科学基金资助项目(51268032)
关键词
水化程度
入模温度
养护温度
水化速度
成熟度
hydration degree
mold temperature
curing temperature
hydration rate
maturity
