Application of fly ash and grounded slag mixing to match C50 pumping concrete in the project;

Through the successful applicationinto basement of realistic engineering,such as Dushi Chuntian Building in Hengyang City,it is testified that using multi-mix-method and local cobble as coarse aggregate in mixing C50 pumping concrete can get asatisfying effect,that is to say this method is feasible.

Mix design for winter ultra strength C50 concrete;

The paper expounds the control of technological quality casting C50 concrete box beam with P.

The paper analyzed the problems of C50 concrete mix design,and proposed some protective measures.

The preparation technology of high-grade pumped concrete;

Discussion on the design of pumped concrete mix proportion;

Quality control of the pumped concrete construction in a building of dong fang square;

Test of proportion of machine pump concrete and construction control;

Research on the bulkily granular and high flowing pump concrete and its application;

Analysis on the causes and prevention measures of construction cracks of pump concrete;

Prospect of application of pumpcrete mixed with fly-ash to construction of hydraulic tunnel;

Application of downward pumpcrete to build anti-scour wall on left bank of Shuibuya Hydropower Project;

This paper introduces the detection principle of rebound method and the main factors influencing the detection performance, and analyzes the modification of detecting the pumpcrete with rebound method.

Analysis on causes of pumping concrete cracking and preventive measures;

Improved technique of pumping concrete;

Preliminary discussions about reasons and preventions of crack in pumping concrete;