摘要
论证了高吸水性树脂(SAP)对混凝土收缩的有利作用。通过添加水泥质量0.7%的SAP,可以基本抑制低水胶比混凝土的自收缩。通过仅添加0.35%,相对于没有添加SAP的混凝土,自收缩可以减少80%。干燥混凝土的总收缩(自发收缩以及干燥收缩的总和)也被大大减少了。
Presentation demonstrates the super absorbent polymers （ SAP） for the beneficial effects of concrete shrinkage. By adding 0. 7% SAP by mass of cement, autogenous shrinkage of low water-cement ratio concrete can be suppressed completely. By adding only 0. 35 %, autogenous shrinkage can be reduced by 80% compared to concrete without SAP. Total shrinkage of drying concrete （ the sum of autogenous and drying shrinkage） is also reduced considerably.
出处
《四川建材》
2015年第1期10-11,共2页
Sichuan Building Materials
