Strength and workability of low lime fly-ash based geopolymer concrete

B  Siva Konda Reddy  J  Varaprasad  and K Naveen Kumar Reddy

doi:10.17485/ijst/2010/v3i12.11

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Strength and workability of low lime fly-ash based geopolymer concrete

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Indian Journal of Science and Technology

DOI: 10.17485/ijst/2010/v3i12.11

Year: 2010, Volume: 3, Issue: 12, Pages: 1188-1189

Original Article

Strength and workability of low lime fly-ash based geopolymer concrete

B. Siva Konda Reddy¹ J. Varaprasad² and K.Naveen Kumar Reddy^3*

1 Department of Civil Engineering, JNTUH College of Engineering, Hyderabad, AP, India
² Department of Civil Engineering, AVR & SVR College of Engineering, & Technology, Nandyal, AP, India
³ Department of Civil Engineering, Nizam Institute of Engineering, & Technology, Hyderabad, AP, India
[email protected] ; [email protected] ; [email protected]

This work is licensed under a Creative Commons Attribution 4.0 International License.

Abstract

Geopolymer concrete prepared from low lime based fly-ash and a mixed alkali activator of sodium hydroxide and sodium silicate solution are investigated. An increase in compressive strength of these concrete samples is observed with increased molarity of NaOH solution. The workability of concrete decreases when the molarity of NaOH solution is increased for the samples cured at 60o C.
Keywords: Concrete, fly-ash, geopolymer, compressive strength.