Study of Experiment on Rock-like Material Consist of fly-ash, Cement and Mortar

3rd International Conference on Energy Equipment Science and Engineering

Nan, Qin^1 ; Hongwei, Wang^1 ; Yongyan, Wang^1

College of Mechanical and Electronic Engineering, Qingdao University of Science and Technology, Qingdao

266061, China^1

关键词: Elasticity moduli;    Inverse functions;    Quantitative relations;    Rock like materials;    Uni-axial compression;    Uni-axial compression tests;    Uniaxial compressive strength;    Water binder ratio;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/128/1/012074/pdf
DOI  :  10.1088/1755-1315/128/1/012074

来源: IOP

【 摘 要 】

Study the uniaxial compression test of rock-like material consist of coal ash, cement and mortar by changing the sand cement ratio, replace of fine coal, grain diameter, water-binder ratio and height-diameter ratio. We get the law of four factors above to rock-like material's uniaxial compression characteristics and the quantitative relation. The effect law can be sum up as below: sample's uniaxial compressive strength and elasticity modulus tend to decrease with the increase of sand cement ratio, replace of fine coal and water-binder ratio, and it satisfies with power function relation. With high ratio increases gradually, the uniaxial compressive strength and elastic modulus is lower, and presents the inverse function curve; Specimen tensile strength decreases gradually with the increase of fly ash. By contrast, uniaxial compression failure phenomenon is consistent with the real rock common failure pattern.