Brown coal fly ash geopolymer mortar

R. Dirgantara, D. W. Law, T. K. Molyneaux, D. Kong

Research output: Chapter in Book/Report/Conference proceedingConference PaperOther

2 Citations (Scopus)


The use of industrial by-products to partly or totally substitute Ordinary Portland cement (OPC) has become an area of significant research in recent years. The driving force has been not only economic, but also environmental, as the production of OPC has greatly contributed to the production of CO 2 to the atmosphere. The use of these industrial by-products as partial replacements for OPC has now become well established, with class F Fly Ash (FA) and Ground Granulated Blastfurnace Slag (GGBS) being the most widely used. Recent research has also shown that concrete with similar strengths to both OP and blended cements can be achieved using class F FA as a 100% replacement binder with a suitable alkali activator. This material is known as geoploymer concrete, with several commercial products recently coming on to the market. In Victoria FA is produced from Brown Coal (BC), which is generally classified as class C FA and as such can not be used as a replacement material for concrete. However, the reaction to form geopolymer concrete is different to that when the FA is used as a partial replacement material. As such, the possibility exists to use BC or class C FA to make geopolymer concrete. This paper reports on a research project investigating the use of BC FA to make geopolymer mortars.

Original languageEnglish
Title of host publicationFrom Materials to Structures
Subtitle of host publicationAdvancement Through Innovation - Proceedings of the 22nd Australasian Conference on the Mechanics of Structures and Materials, ACMSM 2012
Number of pages4
Publication statusPublished - 2013
Externally publishedYes
EventAustralasian Conference on the Mechanics of Structures and Materials 2012 - University of Technology Sydney, Sydney, Australia
Duration: 11 Dec 201214 Dec 2012
Conference number: 22nd


ConferenceAustralasian Conference on the Mechanics of Structures and Materials 2012
Abbreviated titleACMSM 2012
Other22nd ACMSM: “Materials to Structures: Advancement through Innovation”
Sydney, Australia
December 11-14, 2012

ACMSM22 will be held at the University of Technology Sydney, Australia on 11-14 December, 2012. The first ACMSM conference was held in 1967 at the University of New South Wales and since then another 20 of such biennial conferences have been hosted by various universities across Australia and New Zealand. ACMSM conferences provide the forum for academics, researchers and practitioners to discuss and review latest developments in the broad area of structural mechanics and materials. These conferences place strong emphasis on participation from research students.

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