摘要
本文探讨了影响混凝土中水泥砂浆收缩的主要因素,并对其收缩机理进行了初步分析和探讨。结果表明,FDN减水剂能显著增大水泥砂浆的收缩;粉煤灰的掺入能降低水泥砂浆的收缩。试验结果说明,外加剂的颗粒分散效应和矿粉的水化活性是影响水泥砂浆收缩的主要因素。
The main factors on the shrinkage of cement paste are studied in this paper, and preliminary analysis and the discussion on its contraction mechanism has been carried on. The results indicate that the FDN can notably increase the shrinkage of cement mortar, and adding of the fly ash can reduce the shrinkage of the cement mortar. It shows that, the admixture particle dispersion effect and slag powder hydrated activeness are the primary factors that affect the shrinkage of the cement mortar.
出处
《低温建筑技术》
2007年第4期4-6,共3页
Low Temperature Architecture Technology
关键词
收缩
水泥砂浆
外加剂
shrinkage
cement mortar
additive
