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Abstract
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Article Information:
Effect of Superplasticizer and Extra Water on Workability and Compressive Strength of Self-Compacting Geopolymer Concrete
Fareed Ahmed Memon, Muhd Fadhil Nuruddin, Samuel Demie and Nasir Shafiq
Corresponding Author: Fareed Ahmed Memon
Submitted: 2011 September, 08
Accepted: 2011 September, 30
Published: 2012 March, 01 |
Abstract:
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This study documents the results of an experimental work carried out to investigate the effect of
superplasticizer and amount of extra water on strength and workability properties of Fly ash-based Selfcompacting
geopolymer concrete. The experiments were conducted by varying the amount of extra water and
dosage of superplasticizer. A total of nine mixtures with superplasticizer content varying from 3 to 7% and extra
water ranging from 10 to 20% of the mass of fly ash were prepared and tested. The essential workability
properties of the freshly prepared concrete such as filling ability, passing ability and segregation resistance were
evaluated by using Slump flow, T50 slump flow, V-funnel, L-box and J-ring test methods. The compressive
strength tests were carried out at 1, 3, 7 and 28 days. Test results indicated that extra water and superplasticizer
are key parameters and play an important role in the development of self-compacting geopolymer concrete.
Workability of self-compacting geopolymer concrete was dependent on the amount of extra water and dosage
of superplasticizer. With the increase in amount of extra water and superplasticizer, the workability was
improved. However, the addition of water beyond 15% resulted in bleeding as well as segregation and
decreased the compressive strength of the concrete. The compressive strength of self-compacting geopolymer
concrete was significantly decreased as the amount of extra water exceeded 12% by mass of Fly ash.
Key words: Compressive strength, extra water, self-compacting geopolymer concrete, superplasticizer, workability, ,
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Cite this Reference:
Fareed Ahmed Memon, Muhd Fadhil Nuruddin, Samuel Demie and Nasir Shafiq, . Effect of Superplasticizer and Extra Water on Workability and Compressive Strength of Self-Compacting Geopolymer Concrete. Research Journal of Applied Sciences, Engineering and Technology, (05): 407-414.
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ISSN (Online): 2040-7467
ISSN (Print): 2040-7459 |
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