Study on Impermeability of Concrete Face Slab of Rock-Fill Dam with Fly As
In order to study the effect of fly ash content on permeability,pore structure and fractal characteristics of concrete face slab of rock-fill dam,to prepare the concrete face slab specimens with different fly ash content,and to carry out the impermeability test,pore structure analysis and fractal dimension of pore surface of specimens.The research results show that adding fly ash can reduce the early compressive strength of concrete and impermeability of early face slab concrete,but appropriate amount of fly ash in later stage can optimize the pore structure of concrete,reduce the porosity of concrete and refine the pore size distribution,the fractal dimension is obviously increased.
fly ashconcrete of face slabpore structurethe fractal dimension
NETL
NSTL
万方数据
