By the instance of hydroxyl silicate mineral powder additives application on motor,the gas escape amount of bent axle box was measured,and based on the decrease feature of gas escape amount,it demonstrates that hydroxyl silicate mineral powder additive possesses self-repairing performance,and proves that the method of examination in-situ is valid.

By revolting drag test to explosive motor,the revolting drag power and oil consumption compare had been measureed before and after hydroxyl silicate mineral powder additive handling,and proved that the additive can decrease the explosive motor power loss and oil consumption.

Polymer,composite mineral powder and superplasticiser are used to modify the traditional cement mortar.

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.

Based on the research work previously, a new technology of continuous prereduction of fine iron ore with hydrogen at low temperatures (180~570℃) and low pressure (<0.

Pre-reduction of fine iron ore at low temperatures was studied with single factor and orthogonal experiments.

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).