Mechanical properties test and microstructure analysis of shale ceramisite concrete
In order to explore the effects of glass fiber,straw powder and fly ash content on the me-chanical properties and microstructure of shale ceramic concrete,the relationship between the levels of each factor and the uniaxial compressive strength,splitting tensile strength and tension-compression ratio of shale ceramic concrete was analyzed through orthogonal test,and the primary and secondary order of factors and optimal level were obtained.The efficiency coefficient was used to evaluate the performance of shale ceramic concrete.The test results showed that the fly ash content was the main factor for the uniaxial compressive strength of shale ceramic concrete,and the optimal level was 10％.For the splitting tensile strength of shale ceramite concrete,the main influencing factor was glass fiber content,followed by straw powder,and the optimal mix ratio was glass fiber content 0.1％,straw powder content 4％and fly ash content 20％.The main factor affecting the tension-compression ratio of concrete was the content of fly ash,followed by glass fiber,and the optimal mix ratio was glass fiber content 0.1％,straw powder content 2％and fly ash content 20％.According to the analy-sis of the efficiency coefficient,the total efficiency value of the experimental group with glass fiber content 0.3％,straw powder content 4％,fly ash content 10％was the highest,and the comprehen-sive performance was excellent.
万方数据
维普
