Preparation of Great Strength and High Flowage Concrete Double Mixed with Silica Powder and Coal Ash;
硅粉和粉煤灰双掺配制高强度大流动性混凝土
Investigation of double-mixing technology of self-compacting high performance concrete;
自密实高性能混凝土双掺技术的研究
The mechanical performances of C30 concrete composed of zeolite powder and YJ-2 pumping agent and the engineering application complexion in Chengde Kangda Cement Plant are introduced in the paper,which shows that the double-mixing technology can reach the design requirement and lower the engineering cost.
本文介绍了掺沸石粉和YJ-2泵送剂配制的C30泵送混凝土力学性能及在承德康达水泥厂工程中应用的情况,说明该种双掺技术可达到设计的要求,降低工程造价。
According to the results,double adding fly ash and slag not only greatly improved the fluidity of concrete mixture at low water binder,compensated the low early strength caused by high content fly ash,and the late strength also continuously increased,but also markedly reduced the hydration exothemic heat,highest temperature,and postponed the arrival time of the highest temperature.
实验表明 ,双掺粉煤灰 +矿渣不仅明显改善了低水胶比混凝土的流动性 ,同时也弥补了大掺量粉煤灰早期强度偏低的缺陷 ,并且后期强度也不断增大 ,而且还显著地降低了胶结材浆体的水化热和最高温度 ,推迟达到最高温度的时间。
The fanning noise in doubly doped LiNbO_3 crystal(LiNbO_3:0.
研究了双掺LINBO3晶体(LINBO3:0。