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In this issue, Rangan presents extensive studies conducted on fly ash-based geopolymer concrete. Test data are used to identify the effects of salient factors that influence the properties of the geopolymer concrete in the fresh and hardened states. These results are utilised to propose a simple method for the design of geopolymer concrete mixtures. The last part of the paper describes the results of the geopolymer concrete members and illustrates the application of the geopolymer concrete in the construction industry.
Hashim et al discuss on the utilisation of calcined kaolin as a pozzolanic mineral admixture for high-performance mortar and concrete. This paper presents the findings of an on-going investigation on to the effects of laboratory produces metakaolin, in enhancing the strength and durability characteristics of concrete. Metakoalin was found to enhance the overall strength and elastic properties of concrete and also greatly reduced the water absorption of concrete.
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