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EFFECT OF CURING ON THE PROPERTIES OF POLYMERIC CONCRETE

ANWAR QAZI, SOBIA (2010) EFFECT OF CURING ON THE PROPERTIES OF POLYMERIC CONCRETE. Masters thesis, UNIVERSITI TEKNOLOGI PETRONAS.

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Abstract

Limestone and clay are the prime raw materials used in the manufacturing of Portland cement and quarrying of them is becoming the source of environmental degradation. Research showed that in near future limestone will be hardly available for cement production. Besides that, carbon footprints due to cement production are causing global warming. In addition to this, waste disposal is also becoming a global issue because of scarcity and expensiveness of landfills. Polymeric concrete utilizes waste materials such as fly ash (FA), rice husk ash and silica fume (SF) together with alkaline solution (NaOH & Na2SiO3), to form a green binder to replace cement which is the primary objective of this research. Secondly, this research study focuses on complete elimination of Portland cement for production of concrete that can achieve 28 days cube strength in the range of 40-50 MPa with the emphasis on the curing techniques applicable for in-situ construction namely; hot gunny sack, ambient and external exposure curing. This research study incorporates FA as a base source material and microwave incinerated rice husk ash (MIRHA) or SF. The replacement levels were kept at 3%, 5% and 7% of FA. In addition to tests for compressive, tensile and flexural strengths, scanning electron microscopy analysis was also performed to study the microstructure of polymeric concrete. Results showed higher compressive and tensile strengths values for external exposure curing as well as better development of microstructure for the same, compared with other types of curing. Flexural strength was also much better as compared to OPC concrete. Keywords: Polymeric concrete, Fly ash (FA), Microwave incinerated rice husk ash (MIRHA), Silica fume (SF), Scanning electron microscopy (SEM)

Item Type: Thesis (Masters)
Subject: UNSPECIFIED
Divisions: Engineering > Civil
Depositing User: Users 5 not found.
Date Deposited: 05 Jun 2012 08:26
Last Modified: 25 Jan 2017 09:43
URI: http://utpedia.utp.edu.my/id/eprint/2807

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