Effect of Type of Binder on the Behavior of High Strength Lightweight Aggregate

Author(s): Manu S Nadesan and Dinakar Pasla
Paper category: Proceedings
Book title: Proceeding of the 71st RILEM Annual Week & ICACMS 2017
Editor(s): Manu Santhanam, Ravindra Gettu, Radhakrishna G. Pillai, Sunitha K. Nayar
ISBN:978-2-35158-195-7, 978-2-35158-190-2 (Set)
e-ISBN: 978-2-35158-191-9
Publisher: RILEM Publications SARL
Publication year: 2017
Pages: 135-142
Total Pages: 8
Language : English

Abstract: Concrete industry consumes natural resources in a massive manner. As the demand for concrete is growing, one of the effective ways to minimize the harmful impact of the industry is the use of industrial by-product materials as binder and aggregate replacement in concrete. In the current study, the possibility of developing high strength structural lightweight aggregate concrete using silica fume and metakaolin was attempted. Sintered aggregate made from flyash were used as coarse aggregates, while silica fume and metakaolin at 10% and 15% as supplementary cementitious materials (SCMs), replacing cement by mass. The mechanical properties, such as compressive strength, splitting tensile and elastic modulus, as well as plastic density, surface resistivity, and drying shrinkage were investigated. All the developed concretes attain the strength required for high strength concrete. The study reveals that the improvements in mechanical properties are marginal by the addition of SCM in concretes. But significant improvement can be observed in the surface resistivity of the concretes investigated. It was also noticed that the mechanical and durability properties enhanced with age

Online publication :2017
Publication type :full_text
Public price (Euros) : 0.00

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