Necessity and opportunity of sustainable concrete from Malaysia's waste materials

M. R. Karim, Muhammad Fauzi Mohd. Zain, Maslina Jamil, F. C. Lai, M. N. Islam

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

The sustainable concrete (SC) involves reduction of the amount of polluting and carbon dioxide (CO2) gases emitted during the creation of concrete, more efficient use of waste materials, development of low-energy, long-lasting, flexible buildings and structures exploiting the thermal mass of concrete in a structure to reduce energy demand. Waste materials (WM), when properly processed, have shown to be effective as construction materials and have the ability to satisfy the design specifications. During recent decades, huge researches have been carried out for the use of biogenic wastes - palm oil fuel ash (POFA), rice husk ash (RHA), sawdust ash/ash from timber (AFT) and bagasse ash - and industrial waste (slag, silica fume, fly ash) as constituents of cement and concrete. Recently, about 0.3 million ton of POFA is produced annually in Malaysia. Still now, there are no remarkable uses of these ashes. These are only dumped into environment without any commercial return; hence pollution is observed, disposal problem has also been happened. Similar difficulties have been arisen by slag, RHA, and AFT. All of these WM contain a high amount of silicon dioxide in amorphous form and they are proved as pozzolanic materials in concrete production. Therefore, SC can be produced using WM in cement or concrete and they also contribute to: reduce CO2 emission, make more durable and cost effective concrete, save energy by consumption of less cement in concrete production, solve disposal problem by the effective consumption of waste. In this paper, a review on the utilization of WM as an alternative of cement for the production of SC has been presented. The necessity and opportunity of producing SC from Malaysia's WM is mentioned. The pozzolanic activity, benefits of supplementary use of WM in cement and concrete have also been cited here. Based on the available information from literatures, it can be concluded that effective consumption of these WM as a replacement of cement will promote researchers of concrete technology to investigate sustainable way of saving material, mainly cement, and production of SC. The use of WM in concrete is practical, valuable and logical for the production of SC which is one of the best solutions for the saving of energy and for comfortable survival of human life in Malaysia as well as in the planet.

Original languageEnglish
Pages (from-to)998-1006
Number of pages9
JournalAustralian Journal of Basic and Applied Sciences
Volume5
Issue number5
Publication statusPublished - May 2011

Fingerprint

Ashes
Concretes
Cements
Palm oil
Fuel oils
Timber
Slags
Sawdust
Silica fume
Bagasse
Industrial wastes
Planets
Fly ash
Waste disposal

Keywords

  • CO emission
  • Energy conservation
  • Pollution
  • Sustainable concrete
  • Waste materials

ASJC Scopus subject areas

  • General

Cite this

Necessity and opportunity of sustainable concrete from Malaysia's waste materials. / Karim, M. R.; Mohd. Zain, Muhammad Fauzi; Jamil, Maslina; Lai, F. C.; Islam, M. N.

In: Australian Journal of Basic and Applied Sciences, Vol. 5, No. 5, 05.2011, p. 998-1006.

Research output: Contribution to journalArticle

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