米家寨水库黏土混凝土渗透性能的试验研究

Test and Study on Permeability of Clay Concrete of Mijiazhai Reservoir

选用优质黏土,可使黏土混凝土的抗渗性能等得到进一步改善,其中黏土黏粒含量对黏土混凝土的抗渗性能等方面影响较大,同样配合比的条件下,较高黏粒含量的黏土能使混凝土各项性能有更明显的改善,包括渗透系数降低、强度提高、弹模降低等。

By means of selecting good quality clay, the performance of clay concrete can be improved further, and the anti-permeability and strength character can be raised. This paper indicates that the content of clay grains in clay soil can form the main influence on the permeability of clay concrete. Under the same condition of mix proportion of concrete, the performance can be improved evidently by the higher content of clay grains, and the permeability coefficient, the elastic modulus is decreased, the strength is raised.