Pore Structure Evolution and Strength Characteristics of Loess Cement Composites with Different Content
As a special soil with a well-developed pore structure,loess has characteristics such as permeability,collapsibility,and disintegration,which can easily lead to problems like ground fissures and uneven settlement of the surface.The pore structure and strength characteristics of loess with different dosage of cement were investigated by indoor tests such as nitrogen adsorption,hardness test and SEM.The results showed that the total pore volume of loess cement composites gradually decreased with the gradual increase of cement content,and the total pore volume decreased by 40％at 25％cement doping compared with that at 10％cement content;The indentation hardness and strength of loess cement composites have obvious positive correlation with the cement content,and the physical and mechanical properties of the original soil are changed by changing the size,shape,connection and cement filling state of the soil particles through SEM.The study can provide a technical reference for the research and development of grouting materials in loess areas.
万方数据
维普
