Effect of Microfines on the Properties of Concrete

Volume 7 Issue 3 June - August 2017

Research Paper

Effect of Microfines on the Properties of Concrete

Radhakrishna*, K. N. Narasimha Prasad**, Bhawani Singh Shekhawat***, MD. Anaytullah Rahmani****

* Associate Professor, Department of Civil Engineering, R.V. College of Engineering, Bangalore, affiliated to Visveswaraya Technological University, Belgaum, India.

** Assistant Professor, National Institute of Construction Management and Research, Goa, India.

***-**** PG Student, National Institute of Construction Management and Research, Goa, India.

Radhakrishna., Prasad, N.K.N., Shekhawat, B,S., MD Rahmani, A. (2017). Effect of Microfines on the Properties of Concrete. i-manager’s Journal on Civil Engineering, 7(3), 1-5. https://doi.org/10.26634/jce.7.3.13604

Abstract

Sustainable construction practice ordains the exploration of different industrial wastes as supplementary cementitious material. Nano-particles are found to enhance the properties of concrete through filler effect, better interlocking, reduction of internal cracks, reduction of interfacial transition zone, and by proving more nucleation sites for accelerated and improved hydration. In this study ground granulated blast furnace slag, a propriety ultra-microfine slag and stone dust passing through 75 μm sieve are used in different binder compositions for partial replacement of cement. It is found that such replacement enhances the properties of the concrete. The study indicates that stone dust which is an industrial waste without alternative use, has the potential to be used in concrete as a partial replacement material with cement, when used in combination with other supplementary cementitious materials.