Test results show that the freeze thaw durability and strength of GGBS concrete are greatly affected by the strength grade,curing regime and GGBS replacement level.

Experimental study on compound admixture of slag micropowder

A research is made on the effect of slag micropowder used as admixture on the performance of cement by adding different proportion of slag micropowder to the P·Ⅰ52.

Taking volume decrement of blast furnace slag (BFS) and fly ash pump concrete in plastic stage as quantification basis for evaluation of pump concrete plastic shrinkage proves that plastic shrinkage crack of pump concrete has certain internal relation with adding slag micropowder.

In the paper,the effects of sulfate and magnesium salt erosion on ordinary cement mortar samples and high performance concrete cement mortar samples with ground granulated blast furnace slag soaked in 4 density sulfate and magnesium salt solutions are studied.

Cement concrete adhesiveness and water retention effectiveness have been improvement of different level after incorporating ground granulated blast furnace slag (GGBS).

Chloride penetration resistance of concrete with multiplex-slag after 3 years of exposure in seawater environment;

Influences of slag powder,fly ash and superplasticizer on cement paste flowability;

The cement of low hydration heat and expansion is developed which over 50% fly ash as mixing material has been mixed, as well as small amount of slag powder and other additives.

Based on the mercury intrusion porosimetry,a study is made of the compressive strength,gas permeability and pore structure of high performance concrete(HPC) containing slag powder with water-binder ratios(w/b) ranging from 0.