Effect of Mixing Constituent toward Engineering Properties of POFA Cement-Based Aerated Concrete
Publication: Journal of Materials in Civil Engineering
Volume 22, Issue 4
Abstract
Palm oil fuel ash (POFA) cement-based aerated concrete is a new type of lightweight concrete produced by integrating POFA, a by product of palm oil mill as a partial cement replacement in aerated concrete. This paper presents the effects of using a different character of mixing constituent such as size of sand, various amounts of gas foaming agent, and a range of superplasticizer content on the compressive strength and density of aerated concrete with and without POFA. POFA passing sieve was ground until its fineness is 99% passing sieve was incorporated as partial cement replacement. POFA cement-based aerated concrete was prepared by adding 20% of POFA by weight of cementitious materials. It was discovered that POFA cement-based aerated concrete continues to exhibit higher strength compared to ordinary portland cement aerated concrete throughout the experimental program. Thus, this newly found material could be used as environmental friendly construction material since it possess adequate strength fulfilling the requirement in ASTM allowing it to be used as nonload-bearing element yet having lower density below .
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Acknowledgments
The writers extend their gratitude to the entire management team of the palm oil mill in Ladang Alaf owned by Yayasan Pembangunan Johor for the cooperation and support in providing the palm oil fuel ash samples. The contribution by the staff from Structures and Material Laboratory of Faculty of Civil Engineering, Universiti Teknologi Malaysia where the research was carried out are gratefully acknowledged. The writers also wish to thank Universiti Malaysia Pahang for the provision of study leave to the second author.
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Information & Authors
Information
Published In
Journal of Materials in Civil Engineering
Volume 22 • Issue 4 • April 2010
Pages: 287 - 295
Copyright
© 2010 ASCE.
History
Received: Jan 20, 2008
Accepted: Oct 29, 2009
Published online: Mar 15, 2010
Published in print: Apr 2010
Notes
Note. Associate Editor: Carl Liu
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