黏土混凝土物理力学性能研究

Research on Physical and Mechanical properties of Clay-concrete

文中结合米家寨水库防渗墙黏土混凝土试验,对黏土混凝土的物理力学性能及其发展规律进行了研究。作为墙体材料,黏土混凝土具有早期强度较低、后期强度增长较快、相对较低的弹性模量和较高的抗渗性能。通过原材料选用和配合比设计,可以配制出弹性模量4000MPa～28000MPa、强度2MPa～16MPa、渗透系数10-8cm/s～10-9cm/s的黏土混凝土,可用于不同设计要求的水利工程。

Through clay-concrete test of antiseepage wall of Mijiazhai Reservoir,the physical and mechanical properties and its development rule are analyzed.As a kind of material to make antiseepage wall,clay-concrete has such properties that its initial strength is lower,but later strength increases rapidly,elastic modulus is lower,antiseepage character is higher.By means of material selection and mix design,such clay-concrete can be made,elastic modulus of which is from 4 000 MPa to 2 800 MPa,strength from 2 MPa to 16 MPa,coefficient of permeability from 10-8 cm/s to 10-9 cm/s.It can be applied in hydraulic project to meet various demands.