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Thermal properties of foamed concrete with various densities and additives at ambient temperature


Ganesan, Shankar and Othuman Mydin, Md Azree and Mohd Yunos, Mohd Yazid and Mohd Nawi, Mohd Nasrun (2015) Thermal properties of foamed concrete with various densities and additives at ambient temperature. Applied Mechanics and Materials, 747. pp. 230-233. ISSN 1662-7482

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Abstract

This paper will focus on experimental investigation to observe the effects of different densities and additives on the thermal properties of foamed concrete by means of Hot Disk Thermal Constant Analyzer, so as to obtain a few fundamental thermal properties for prediction of its fire resistance performance.For this study, samples of three different densities of 700kg/m 3 , 1000kg/m 3 and 1400kg/m 3 and various additives were investigated to study the effects of densities and additives on the thermal properties of foamed concrete. The additives used in this research were pulverized fuel ash (PFA), silica fume, palm oil fuel ash (POFA), wood ash, polypropylene fibre, steel fibre and coir fibre. It should be pointed out that the lowest density of foamed concrete (700kg/m 3) has provided best thermal insulation properties due to large amount of pores and high percentage of air entrapped because air is poorest conductor of heat than solid and liquid. Also, foamed concrete with coir fibre achieved lowest thermal conductivity because it possess high heat resistance due to its large percentage of hemicellulose and lignin and exhibited high heat capacity as well due to the formation of uniform pores and voids in foamed concrete.

Item Type: Article
Uncontrolled Keywords: foamed concrete, thermal properties, fire resistance, lightweight concrete, density
Subjects: Q Science > Q Science (General)
Divisions: School of Technology Management & Logistics
Depositing User: Dr. Sr. Mohd Nasrun Mohd Nawi
Date Deposited: 13 Apr 2015 06:30
Last Modified: 13 Apr 2016 04:45
URI: http://repo.uum.edu.my/id/eprint/13814

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