【摘要】 从高效减水剂的分散和保持分散机理出发 ,说明了不同的高效减水剂与水泥粒子之间客观上存在不同的作用 ,解释了坍落度损失的快慢不同的原因 ,介绍了控制坍落度损失的方法 ,进而说明了大掺量矿物掺合料(本文中矿物掺合料主要指的是磨细粉煤灰、矿渣 )是控制混凝土坍落度损失的极需重视的技术途径更多还原

【Abstract】 In this paper,based on mechanisms of dispersion and keeping dispersion of superplzsticizer,it is showed that there is different action between different superplasticizer to cement particle.The reason for different on velocity of slump loss was explained.At the same time,how to control slump loss was introducted.Furthermore,it is suggested that it is simplest method to control slump loss by adding high volume additive.更多还原