Effects of solid wastes on denseness and strength of fresh cement paste
固体废弃物对新拌水泥浆体密实度与强度的影响

The relationship between the powder particle system and denseness of fresh cement paste was studied when the solid wastes such as limestone powder,fly ash,red mud and slag were used as mineral admixtures.The paste strength that cement was substituted for the different proportions in equal quantity was analyzed when the water-binder ratio was 0.3.The results showed that limestone powder,fly ash and red mud as admixtures can improve the particle size distribution of the blend materials,filling the pores of fresh cement paste to make the structure of cement paste compact,thus contributing to the strength development of cement paste.