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;

Preparation and performance of a new expansion agent based on steel slag;

Preliminary approach to application of blast furnace slag as cement expansion agent;

Influence of superplasticizer on performance of sulfo-aluminate expansion agent under same fluidity;

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;

The results indicated that the early cracks of concrete could be reduced when cement was partially replaced by fly ash or slag powder,adding some shrinkage reducing admixture or expansive admixture in cement,controlling the temperature difference inside and outside of concrete and curing in water.

An expansive admixture is introduced in this paper.

This paper chooses four kinds of different types of concretes which are conventional concrete,expansive admixture concrete,steel fiber reinforced concrete and expansive admixture and steel fiber compounding concrete to research their abilities and performances.

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.