> 粉煤灰水泥代号是？
在矿渣水泥中大量掺用粉煤灰来生产水泥是一种新技术。
这种复合水泥(代号P.O)由于参入了两种活性混合料,较单一混合料的水泥具有更好的使用效果,其性能一般受所用两种混合料的矿物成分、比表面积、掺量及配合比的影响。
本文用矿渣水泥、粉煤灰、激发剂及填充料四种成分按一定比例配制复合水泥后,着重探讨了激发
This paper, aiming at the weak points of the low early strength and the slow setting and hardening of portland fly-ash cement, according to the forming mechanism of cement clinker minerals, cement clinker minerals are choosen, fly ash is used as a substitute of clay as raw materials, early and high strength type cement clinker has heen developed, the amount of alit in the clin
粉煤灰，是从煤燃烧后的烟气中收捕下来的细灰，粉煤灰是燃煤电厂排出的主要固体废物。
我国火电厂粉煤灰的主要氧化物组成为：
SiO2、Al2O3、FeO、Fe2O3、CaO、Ti
Effects of slag,high-calcium fly ash,desulfurized gypsum,calcined desulfurized gypsum and sodium sulfate on early age autogenous shrinkage of cement pastes,long terms of desiccation shrinkage and initial cracking sensitivity of cement mortar are researched. This article takes eliminating the bad stability of HFA,enhances its utilization ratio as the goal,researches the impact of modified high-lime fly ash to the performance of workability、mechanical properties and resistance to chloride ion permeability. 以消除高钙灰安定性不良,提高其使用率为目的,从工作性、力学性能和抗氯离子渗透性能等方面,研究了经
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