In order to study the influence of different kinds of snow-melting agents on the mechanical properties of glass fiber cemented soil under drying-wetting cycle,potassium acetate,magnesium chloride and sodium sulfate solutions with a concentration of 0.2 mol/L were prepared as snow-melting agent solutions.The specimens of non-fiber cemented soil and fiber cemented soil were immersed in different types of snow-melting agent solutions for 3d after maintenance,and then the specimens were taken out and put into the drying oven for 8 to 10 drying-wetting cycles respectively.Then,the influence of the type of snow-melting agent and the number of drying-wetting cycles on the surface failure state,strength and quality of the test block were analyzed.The test results show that after the tenth drying-wetting cycles,the influence of potassium acetate snow-melting agent solution on the quality and strength of the test block is less than that of magnesium chloride solution and sodium sulfate solution,indicating that potassium acetate snow-melting agent has less erosion effect on cement soil;With the increase of drying-wetting cycles,the surface cracks of cemented soil gradually deepen;After the same number of drying-wetting cycles,the crack development,mass loss rate and strength loss rate of the fiber cemented soil were lower than those of the non-fiber cemented soil,indicating that the ability of the cemented soil to resist the drying-wetting cycles and the erosion of snow-melting could be effectively improved by adding glass fibers.
NETL
NSTL
维普
万方数据
