Experimental Investigation on Strength Properties of Ultrafine Fly Ash and Micro Silica as Mineral Admixtures for Vermiculite Mortar

M. V. S. S. Sastri*, P. Ashveen Kumar**, K. Jagannadha Rao***
* Department of Civil Engineering, Vasavi College of Engineering, Hyderabad, Telangana, India.
** Department of Civil Engineering, Matrusree Engineering College, Hyderabad, Telangana, India.
*** Department of Civil Engineering, Chaitanya Bharathi Institute of Technology, Hyderabad, Telangana, India.
Periodicity:October - December'2019
DOI : https://doi.org/10.26634/jms.7.3.16588

Abstract

Concrete is mostly used as a building material and while preparing concrete mix the natural resources are being used extensively. Due to large-scale construction being taken up, a steady sand mining is taking place at an alarming rate. To overcome the problem Vermiculite aggregate is partially used as a replacement to sand. Exfoliated Vermiculite (EV) can be effectively utilized in a silica-based material in building industry. In this present study, an attempt has been made to study the mechanical properties of EV cement mortar with different percentages of i.e. 5%, 10%, and 15% of Micro Silica and Ultrafine Fly Ash mineral admixtures as partial replacements of cement, and EV at 20%, 40%, 60%, and 80% by weight as partial replacement of fine aggregate. It has been observed that the required compressive and flexural strength of mortar are achieved when 10% Micro Silica and 5% Ultrafine Fly Ash are used as partial replacement by weight of cement and 20% EV is used as a partial replacement by weight of fine aggregate.

Keywords

Cement mortar, Compressive Strength (CS), Exfoliated Vermiculite (EV), Flexural Strength, Micro Silica (SF), Ultrafine Fly Ash (UFFA).

How to Cite this Article?

Sastri M. V. S. S., Kumar, D. A., and Rao, K. J. (2019). Experimental Investigation on Strength Properties of Ultrafine Fly Ash and Micro Silica as Mineral Admixtures for Vermiculate Mortar. i-manager’s Journal on Material Science, 7(3), 53-62. https://doi.org/10.26634/jms.7.3.16588

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