Abstract
In this experimental investigation, influence of temperature was investigated on composite
specimens, which were prepared by spraying polymer cement mortar (PCM) on treated surface of
concrete. The weakest part of the composite specimen is interface between concrete and PCM. To
strengthen this part, primer was used which dense the interface. Two types of composite specimens
were prepared in this experimental work, one by using primer at interface and second was without
using it. Bond integrity of both types of composite specimens were investigated in tension, shear and
moment. Tensile behavior was investigated by conducting interfacial split tensile strength and shear
behavior was evaluated by conducting Bi-Surface shear strength. While moment was investigated by
performing three and four point loading tests on strengthened beams. All tests were performed at 20
and 60oC. Reduction in interfacial tensile strength, interfacial shear strength and ultimate moment
were observed at elevated temperature. Failure mode of strengthened beams also shifted from flexural
to debonding mode. While the influence of primer was ignorable in this work
Khuram Rashid, Dawei Zhang, Tamon Ueda. (2017) Influence of Primer on Bond Integrity between Concrete-Polymer Cement Mortar at Elevated Temperature: in Tension, Shear and Moment, Pakistan Journal of Engineering and Applied Sciences, VOLUME 20, Issue 1.
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