Determination of bending and axial compression young’s modulus of cellular mortar exposed to high temperatures

Mydin, Md Azree Othuman and Mohamad, Noridah and Johari, Izwan and Abdul Samad, Abdul Aziz (2018) Determination of bending and axial compression young’s modulus of cellular mortar exposed to high temperatures. International Journal of Engineering and Technology, 7 (2.23). pp. 99-102. ISSN 2227-524X

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Abstract

This paper focuses on laboratory investigation to scrutinize and portray the Young’s modulus of cellular mortar exposed to high temperatures. Two densities of cellular mortar of 600 and 900 kg/m3 density were cast and tested under axial compression and 3-point bending. The tests were performed at room temperature, 105°C, 205°C, 305°C, 405°C, 505°C, and 605°C. The results of this study consistently indicated that the loss in toughness for cement based material like cellular mortar exposed to high temperatures happens principally after 105°C, irrespective of density of cellular mortar. This specifies that the principal contrivance instigating stiffness deprivation is micro cracking in the cement matrix, which happens as water magnifies and disappears from the porous body. As projected, decreasing the density of cellular mortar diminishes its compressive strength and bending strength. Though, for cellular mortar of different densities, the normalized strength-temperature and Young’s modulus-temperature relationships are comparable.

Item Type:	Article
Uncontrolled Keywords:	Bending; Cellular concrete; Compression; Elevated temperatures; Young’s modulus
Subjects:	T Technology > T Technology (General) T Technology > TA Engineering (General). Civil engineering (General) > TA630-695 Structural engineering (General)
Divisions:	Faculty of Civil Engineering and Built Environment > Department of Civil Engineering : Water and Environmental Engineering
Depositing User:	UiTM Student Praktikal
Date Deposited:	14 Dec 2021 07:27
Last Modified:	14 Dec 2021 07:27
URI:	http://eprints.uthm.edu.my/id/eprint/4685

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