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Water Absorption and Flexural Test For Glass Fibre Reinforced Polymer (GFRP)
Design & Technology
Pages 10 (2510 words)
It will be examination of the time dependence of water absorption by immersing the samples of Glass fibre-reinforced polyester (GFRP) in salt and normal water, after that measuring the mass of the specimens at specific moments…
After that a flexural test will be done using a three point bending method. The main objective of this experiment is to expand the knowledge about the GFRP and its behaviour. Glass fibre reinforced unsaturated polyester (GFRP) were subjected to water immersion tests to know the results of the water absorption on the mechanical properties. 20 specimens with 10cm long of GFRP were used to this experiment, measuring their weight under different types of water and temperatures. Salt water and normal water was under 20c and 60c temperatures. The weight of these specimens was taken during a different time periods. The weight of the GFRP specimens was increased slightly in both types of water for a few days until it was stable. After that a flexural test (three point bending test) was done on these GFRP specimens. (H Dhakal, Z Zhang, M Richardson, 2006) Equipment 1: Water absorption test The absorption of water for the Glass fibre-reinforced polyester (GFRP) remains the key mechanism for degrading mechanical property in this experiment. A water bath machine as in the figure (ten) and two cups of glass as on the figure (eleven) were used in this experiment. The water bath has 6oc water and the two cups were at 20c water temperature. ...
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