Influence of fly ash proportions on properties of polymer concrete with polyester resin

Lokuge, Weena and Aravinthan, Thiru and Sirimanna, Chamila Sampath and Islam, Mainul (2011) Influence of fly ash proportions on properties of polymer concrete with polyester resin. In: 25th Biennial Conference of the Concrete Institute of Australia (Concrete 2011): Building a Sustainable Future, 12-14 Oct 2011, Perth, Australia.

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Abstract

It is reported in the past that concrete is not a suitable material to be confined by glass fibre reinforced polymer (GFRP). If GFRP jackets are used in timber pile rehabilitation then a new filler material development is necessary. As a result, this research investigates the structural properties of new polymer based concrete with different proportions of resin, sand and fly ash. This research aims at rehabilitating a portion of a pile by using a GFRP pile. Due to good compressive strength, pumpability and workability, the new polymer based filler material is to be filled in between GFRP pile and existing pile. A research program has been initiated to improve fundamental understanding of this material and to provide the knowledge required for its broad utilization. In this development, sample trial mixes were considered based on several weight percentages of polymer resin, fly ash and sand. These weight percentages were selected after analyzing volumetric properties of sand. This paper presents and discusses the results from an investigation of uniaxial compressive stress-strain relationship of polymer based concrete. The effect of resin (binder), sand and fly ash contents on the compressive strength, flexural strength, split tensile strength, density, linear shrinkage and gel time of polyester polymer filler is reported. It has been found that most polymer based filler materials have high compressive strength and considerable plastic region extending more than 8% strain. The results show that the polymer based filler materials are suitable for both compression and tensile loading situations.


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Item Type: Conference or Workshop Item (Commonwealth Reporting Category E) (Paper)
Refereed: Yes
Item Status: Live Archive
Additional Information: © 2011 Concrete Institute of Australia. Permanent restricted access to published version due to publisher copyright policy.
Depositing User: Dr Weena Lokuge
Faculty / Department / School: Historic - Faculty of Engineering and Surveying - Department of Agricultural, Civil and Environmental Engineering
Date Deposited: 03 Feb 2012 04:54
Last Modified: 02 Dec 2014 01:47
Uncontrolled Keywords: polymer concrete; composite systems fly ash; material properties; polyester resin
Fields of Research (FOR2008): 09 Engineering > 0905 Civil Engineering > 090503 Construction Materials
09 Engineering > 0905 Civil Engineering > 090506 Structural Engineering
03 Chemical Sciences > 0303 Macromolecular and Materials Chemistry > 030305 Polymerisation Mechanisms
Socio-Economic Objective (SEO2008): B Economic Development > 87 Construction > 8703 Construction Materials Performance and Processes > 870301 Cement and Concrete Materials
URI: http://eprints.usq.edu.au/id/eprint/19837

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