硅酸盐学报2017，Vol.45Issue(2)：212-219,8.DOI:10.14062/j.issn.0454-5648.2017.02.06
表面状态对硬化水泥石显微硬度及统计分布的影响
Influence of Surface Status of Hardened Cement Paste on Its Microhardness and Statistical Distribution
摘要
Abstract
Influences of smoothness and saturation level of hardened cement paste (HCP) on its microscopic morphologies, microhardness and statistic distribution were investigated. The results indicate that the measured microhardness values are subject to considerable variability, and the improvement of the sample smoothness can slightly lead to the less variability of microhardness values. However, for limited microhardness measurements, the microhardness data are not normally-distributed, but fit best with a 3-parameter lognormal model. For the same HCP samples with different water saturation levels, it is clear that the microhardness of saturated surface-dried (SSD) samples is lower than that of oven-dried samples after quantitatively comparing the statistical parameters to the best goodness-of-fit of 3-parameter lognormal distribution. It is essential to keep the sample with the same surface condition, and it is necessary to statistically analyze the microhardness of cement based materials.关键词
硬化水泥石/显微硬度/制样方法/抛光/饱和程度/统计分布Key words
hardened cement paste/microhardness/sampling method/polishing/saturation/statistic distribution分类
建筑与水利引用本文复制引用
蒋雁,党玉栋,钱觉时,李昕成,石鲜明,杨正宏..表面状态对硬化水泥石显微硬度及统计分布的影响[J].硅酸盐学报,2017,45(2):212-219,8.基金项目
国家自然科学基金(51302191，51132010)。 （51302191，51132010）
