Experimental investigation of bond between glass textile reinforced mortar overlays and masonry: the effect of bond length
作者： Paraskevi D Askouni , Catherine G Papanicolaou , None
DOI: 10.1617/S11527-017-1033-7
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摘要: In this paper, an experimental program involving shear bond tests on double-lap/double-prism specimens is presented aiming to assess the characteristics of interfaces comprising uncoated alkali-resistant glass fiber textile reinforced cementitious mortars (TRM) applied as overlays unreinforced masonry substrates. total, 19 test results are with length being parameter under investigation. Bond lengths studied were equal 50, 100, 125, 150, 200 and 250 mm, whereas at least two per tested. According findings, effective for specific type TRM overlay substrate was found be approximately 130 mm. Failure bonded strips due slippage within mortar simultaneous rupture. Slippage entire strip in relation practically zero confirmed by application a digital image correlation (DIC) method. The experimentally derived load-relative displacement curves can approximated bilinear up maximum load linear post-peak descending branch; residual capacity present only lower that one. Finally, data DIC-enabled crack detection width evolution throughout response also presented.
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