掺石膏灰渣混合料的力学性质试验分析

为研究掺石膏灰渣混合料作为筑坝材料、路基材料等的工程适用性,对掺石膏灰渣混合料进行了物理力学性质试验,重点研究了五种脱硫石膏掺量的混合料的渗透性和抗剪强度。结果表明,混合料的渗透系数k、粘聚力c、内摩擦角φ均随脱硫石膏掺量的增加呈先增后减的趋势,且当石膏掺量均为30%时,渗透性最大,强度最高。故在实际工程中,可根据具体工程对渗透性和强度的要求选择不同石膏掺量的混合料。

Experimental Analysis of Mechanical Properties of Mixture of Fly Ash, Cinder and Gypsum

The experiments for mechanical properties of mixture of ash-cinder and gypsum have been done to investigate engineering applicability of mixture. The permeability and shear strength of the mixture with 5 gypsum contents have been mainly studied. The results show that the coefficient of permeability, cohesion and internal frictional angle firstly increased and then decreased with increase of gypsum content; the coefficient of permeability was larger and the shear strength was higher when gypsum content was 30%. So, the mixture with different gypsum content can be chosen for different requirements of permeability and shear strength, and it can be widely used in various engineering.