Utilization of palm oil fuel ash in concrete: a review
Document Type
Article
Publication Date
1-1-2011
Abstract
Uncontrolled dumping of palm oil fuel ash (POFA) not only occupies valuable land but also creates environmental pollution and health hazard. These problems can be reduced to large extent by using POFA in concrete. A number of research works have been carried out to investigate the potential of POFA for use as a supplementary cementing material in normal, high strength, high performance, and aerated concretes. This paper presents a review on the use of POFA in different types of concrete. It firstly discusses the physical and chemical properties of POFA. Then the emphasis has been given on the effects of POFA on the fresh and hardened properties, and durability of concrete. This paper shows that both ground and unground POFA increase the water demand and thus decrease the workability of concrete. However, ground POFA has shown a good potential for improving the hardened properties and durability of concrete due to its satisfactory micro-filling ability and pozzolanic activity. In addition to discussing the benefits of POFA, this study has identified certain gaps in the present state of knowledge on POFA concrete, and listed several research needs for future investigation. The findings of this study would encourage the use of POFA as a supplementary cementing material for concrete.
Keywords
Concrete, Fineness, Micro-filling ability, Palm oil fuel ash, Strength activity index, Supplementary cementing material, Palm oil, Supplementary cementing materials, Cementing (shafts), Chemical properties, Concretes, Durability, Fuels, Hardening, Health hazards, Vegetable oils, Strength of materials.
Divisions
fac_eng
Publication Title
Journal of Civil Engineering and Management
Volume
17
Issue
2
Publisher
Journal of Civil Engineering and Management
Additional Information
Cited By (since 1996): 4 Export Date: 6 January 2013 Source: Scopus Language of Original Document: English Correspondence Address: Safiuddin, Md.; Department of Civil and Environmental Engineering, Faculty of Engineering, University of Waterloo, 200 University Avenue West, Waterloo, ON N2L 3G1, Canada; email: msafiudd@engmail.uwaterloo.ca