胶凝砂砾石材料抗压与劈拉强度关系试验

Experimental Study on the Relationship Between Compressive Strength and Splitting Tensile Strength of CSG Material

普通混凝土的劈拉强度大约是抗压强度的1/9~1/18,但胶凝砂砾石材料不同于混凝土材料,其材料特性介于混凝土与土料之间,材料强度取决于诸多因素。为分析胶凝砂砾石材料抗压强度与劈拉强度的关系,通过对100组相同配合比的立方体抗压和劈拉试件进行的抗压和劈拉试验研究,得到各试件的强度。结果表明,胶凝砂砾石材料立方体抗压强度和劈拉强度存在较好的线性关系,劈拉强度为抗压强度的7%~12%。

Ordinary concrete splitting tensile strength is approximately 1/9-1/18 of the compressive strength, but CSG materials is different with concrete material, which material properties are between concrete and soil, and the strength of the material depends on many factors. In order to ascertain the relationship between compressive strength and splitting tensile strength of sand and gravel material, 100 groups of tension and compression tests were formed in this experiment, and their respective strengths were obtained through a large number of cube compressive tests and cube splitting tests. The results show that the cube compressive strength and the splitting tensile strength of the CSG material are numerically related and the splitting tensile strength is 7%-12% of the compressive strength.