胶粉对硬化水泥石干缩和失水行为影响的机理  

Mechanism of Effects of Polymer Powder on the Shrinkage Deformation of Hardened Cement and Loss of Water

作　　者：张承志[1] 张彦敏[1] 王爱勤[2] 李海南[1] 

机构地区：[1]河南大学材料与结构研究所,开封475004 [2]中原工学院建筑工程学院,郑州450007

出　　处：《混凝土与水泥制品》2012年第6期6-9,共4页China Concrete and Cement Products

摘　　要：通过试验研究了水泥石干缩变形和失水率随着可再分乳胶粉掺量的变化规律,并通过红外光谱分析研究了可再分胶粉对硬化水泥石干缩变形的作用机理。试验结果表明,随着胶粉掺量的增多,水泥石失水率变化不大而干缩率变化较大。The change law of the shrinkage deformation and water loss rate of hardened cement with the content change of polymer powder is studied. By the infrared spectroscopy, the mechanism of the effect of polymer powder on the shrinkage deformation of hardened cement is studied. The experimental results show that with the increase of polymer powder dosage, the change of water loss rate of hardened cement is less, but the shrinkage rate changes a lot.

关 键 词：胶粉 硬化水泥石 干缩 失水 红外光谱 

分 类 号：TU581.22[建筑科学—建筑技术科学]