Preparation of integral water repellent concrete with addition of alkylalkoxysilane emulsion

Proper use of expansion admixture in waterproof concrete;

Influencing factors of improving the structure anti-permeability ability and the strength of the waterproof concrete;

Thinking of controlling waterproof concrete quality problem;

This paper mainly investigates the stress state,impermeability and changing rule of strength with temperature of the water-proof concrete layer cast during layout of bridge deck under high-temperature environment.

Taking the construction of water-proof concrete on main structure of line 2 of Xi\'an subway as an example,reasons for the appearance of cracks on water-proof concrete are analyzed.

Constructions controlling the cracking on waterproofing concrete roof and hardened layer;

Seepage control in waterproofing concrete construction;

Based on the engineering characteristics of transformer substation, the compounding, construction control methods and waterproofing enhancing ways on some detailed locations of waterproofing concrete and flexible cement-base waterproofing coating (infiltration-crystallization) are introduced.

Winter construction of mass waterproof concrete;

To reveal the problems and condition limitation for design the admixtures of self-waterproof concrete by means of analyzing the project examples and analyzing the technical character of expansive agent and water-repellent admixture used for self-waterproofing concrete.