In this paper the main measures to prevent bumping at bridge-head between high subgrade and bridge are introduced and based upon deep analysis the construction method-buffer plumping method is presented; in addition its construction technology is introduced in detail.

This paper emphasized on the key techniques double mixing of organic short fiber in AEA expansive agent, best mixing quantities of organic short-fiber and expansive agent, restricted expansion rate after double mixing, compressive strength and bending strength of mortar etc.

Mechanism and model of sulfate attack on RCC with expansive agent;

Investigation on environmentally friendly PFA based expansive agent;

Some considerations on development of expansive agent and expansive concrete in china;

Shrinkage of semi-lightweight concrete with expanding agent;

Setting compound phosphate retarder and reduced type expanding agent for building gypsum;

To systematically study the effects of mineral admixtures such as slag,expanding agent on sulfate resistance of concrete, a series of concrete immersion test was carried out.

Proper use of expansion admixture in waterproof concrete;

Study on expansion admixture and steel fiber reinforcing high strength lightweight aggregate concrete;

Influences of expansion admixture on performance of self-compacting concrete;