According to practical works this paper introduced the construction method that adding UEA expansive agent in foundation concrete to form self waterproof structure and improve the seepage resistance and durability of concrete as well as quality control method and cost effectiveness analysis.

According to the present utilization of cement expansive material in China, this paper advances some opinions on the correct utilization of cement expansive material, analyzes the reasons of common accidents, and advances some treatment measures.

Expansion ratio and limited expansion ratio of expanding admixture concrete were tested in four kinds of different curing conditions.

Discussion on product standard and quality test of concrete expansive agent;

To promote the ZY high performance concrete expansive agent in Zhejiang province and service its market, a series of experiments on ZY high performance concrete expansive agent were did in this paper, including the consistency of this expansive agent and different cements, the limited expansion ratio of different binder-sand additions and the anti-permeability and carbonation resistance.