EXPERIMENTAL INVESTIGATION ON TWO WAY RC SLABS WITH TEXTILE REINFORCED MORTAR

Aseel Mustafa Farj Ali Civil Engineering Department, Mustansiriyah University, Baghdad, Iraq.
Asst. Prof. Zinah Waleed Abass Civil Engineering Department, Mustansiriyah University, Baghdad, Iraq.

Abstract

The use of GFRP in concrete structures under extreme conditions leads to extended service life and lower life cycle cost. This paper discusses the progress made in experimental studies designed to verify the response of (1000 * 1000) mm of reinforced concrete slabs subjected to shock loads. Four samples are tested for failure under repeated weight drop in the middle of the plate. Methods for measurements of deformations of the tested samples included a load cell and stress in the reinforcement and a laser sensor to measure the center deviation of the plates (LVDT). The experimental variables included in this study mainly focused on the weight of the drop length and the thickness of the slab (80 and 60) mm.
The results of the test of samples armed with (GFRP) rods and covered with a face (pressure area) with three layers of glass cloth and examined from a height of (1) m showed that they were more effective in withstanding the number of blows at a rate of (72.41%) than their counterpart tested from a height of (1.5) meters and with a percentage of (82.75%) of the sample examined from a height of (2) meters for the same thickness. And more effective than its counterpart with a thickness of (60) mm, the tissue layers did not prevent the appearance of cracks in the pressure area in the samples examined from heights (1.5.2). Decreased thickness of the panels decreased the slab's impact tolerance by (50.34%). The use of GFRP rods with glass textiles is more sustainable and cost-effective.

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