关于CEA混凝土膨胀剂的若干技术问题——与游宝坤同志讨论

Some technology problem on usefulness of expansion admixture CEA ——have a discussion with Mr.You Baokun

作者阐述了CEA膨胀剂混凝土的膨胀量较大 ,干缩小 ,抗裂性能良好的特性 ,CEA与粉煤灰掺用提高强度 ,改善界面过渡层的性质 ,提高耐久性 ;CEA混凝土无Ca(OH ) 2 溶出问题。文中列出GBJ119应用技术规范 ,说明CEA可用于防水工程。

This paper describes the properties of Concrete added CEA expansion admixture,include larger expansion rate,small dry shrinkage and good cracking resistance.Adding fly ash and CEA can improve concrete strength and property of interface intermediate layer,permeability.Concrete with CEA had not Ca(OH) 2 leaching.This article has gives GBJ119 user technology specification.In introduces that CEA can be used for water resistance construction.