EXPERIMENTAL RESEARCH ON THE SPLITTING TENSILE STRENGTH ACROSS CONSTRUCTION JOINTS SURFACE OF CONCRETE
Using different joint materials, the bond splitting tensile strength of cubic specimens with construction joints is tested. Test results indicate that the bond splitting tensile strength of modified fly ash mortar is best in joint materials of sorts. Expansive cement paste and joint concrete are next. And the bond splitting tensile strength of joint surface without bond material is least. Using software tool of Photoshop image processing, the compactness and planeness of the fracture surface of bond splitting tensile specimens are evaluated by statistic information of the picture element on luminance value. And the relation formula between them is given. Finally, the effect of joint material is discussed through microscopic and macroscopic analysis.
construction joints splitting tensile strength joint materials
Chun-Ming Wei Xing-Hai Zhao Ting-Ting Su Bin Ma
College of Architectural and Civil Engineering, Northeast Dianli University, Jilin 132012, P.R. Chin College of energy and mechanical engineering, Northeast Dianli University, Jilin 132012, P.R. China
国际会议
广州
英文
448-453
2009-11-28（万方平台首次上网日期，不代表论文的发表时间）