Effects of heating durations on normal concrete residual properties: compressive strength and mass loss

Mohamed Nazri, Fadzli and Shahidan, Shahiron and Baharuddin, Nur Khaida and Beddu, Salmia and Abu Bakar, Badorul Hisyam (2017) Effects of heating durations on normal concrete residual properties: compressive strength and mass loss. In: IOP Conf. Series: Materials Science and Engineering.

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Official URL: doi:10.1088/1757-899X/271/1/012013

Abstract

This study investigates the effects of high temperature with five different heating durations on residual properties of 30 MPa normal concrete. Concrete cubes were being heated up to 600°C for 30, 60, 90, 120 and 150 minutes. The temperature will keep constant for 30, 60, 90, 120 and 150 minutes. The standard temperature-time curve ISO 834 is referred to. After heating the specimen were left to cool in the furnace and removed. After cooling down to ambient temperature, the residual mass and residual compressive strength were observed. The obtained result shows that, the compressive strength of concrete decrease as the heating duration increases. This heating duration influence, might affects the loss of free water present and decomposition of hydration products in concrete. As the heating duration increases, the amount of water evaporated also increases led to loss in concrete mass .Conclusively, the percentage of mass and compressive strength loss increased as the heating duration increased.

Item Type:Conference or Workshop Item (Paper)
Subjects:T Technology > TA Engineering (General). Civil engineering (General) > TA401-492 Materials of engineering and construction. Mechanics of materials
ID Code:10120
Deposited By:Pelajar Praktikal UiTM
Deposited On:13 Aug 2018 11:28
Last Modified:13 Aug 2018 11:28

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