Rate of Strength Development of Ultra High Strength Geopolymer Concrete (UHSGC)

Paper ID: EIJTEM_2018_5_1_11-15

Author's Name: Dr.S. Shanumgasundaram, M. Seenirajan and Dr.S. Christian Johnson

Volume: 5

Issue: 1

Year: 2018

Page No: 11-15

Abstract:

In recent years, a lot of interest has been developed among the civil engineering community regarding geopolymer concrete. Though geopolymer is being discussed as an alternate to Portland cement based concrete, the basic reaction mechanism in both the cases are different. Moreover since geopolymer utilise silica fume and ground granulated blast furnace slag (GGBS) or other industrial by products, the quality of the end products may depend heavily on the quality of these by products. This project deals with the development of ambient temperature cured Ultra-High-Strength Geopolymer concrete (UHSGC). Ultra-High-Strength Concrete (UHSGC) mixtures were created by totally eliminating Portland cement and initiating industrial by-product materials such as ground granulated blast furnace slag slag and silica fume. The materials used to develop UHSGC are local standard sand (maximum size 2 mm), quartz sand (600 m) and 0.14 mm diameter steel fibres of 13 mm length were used. The aspect ratio of the fibres used are 92.85. The compressive strength of the UHSGC by adding steel fibre (2% by volume of the concrete) produced under ambient curing conditions were evaluated. The highest average compressive strengths obtained were 143.2 N/mm2 for UHSGC with steel fibres (2% 13 mm) and 73.04N/mm2 for UHPGC without fibres. Generation of this contemporary material with industrial byproducts and without the customary curing regimes utilized for UHSC will enhance sustainability and lead to cast-in-situ uses of UHSC

Keywords: Silica Fume, Ground Granulated Blast Furnace Slag, Geopolymer Concrete, Compressive Strength.

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