煤矸石多孔砖砌体抗剪性能试验研究

Experimental Study on shear specimens of behavior of Coal Gangue Perorated Bricks Masonry

通过不同孔型的两组12个煤矸石多孔砖砌体沿通缝截面的抗剪试验研究,分析销键作用对煤矸石多孔砖砌体抗剪强度的作用及其本身的破坏机理,并对照试验比较了不同孔型的煤矸石多孔砖抗剪强度的差异。试验表明,煤矸石多孔砖砌体的抗剪破坏表现为单剪裂缝,破坏为脆性且主要发生在砂浆层与块体的粘结面,破坏面较平整。

The purposes of this paper were focused on the shear specimens of behavior and destructional forms of coal gangue perorated bricks masonry. We analyze its failure mechanism and the role of pin key effection to its shear strength through the shearing test of 2 groups of 12 this masonry.we compare the difference of shear strength for these two different type coal gangue perorated brick with multiform holes masonry through the controlled trial . The shear failure of coal gangue perorated bricks masonry is single shear failure.Its destruction is fragile which is mainly on the surface between mortar and block.The fracture surface is flat.