Mechanical and Physical Properties of Concrete Modified with Natural Rubber Latex

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AUTHORS: Pheerawat Plangoen  E-mail: pheerawat.pla@siam.edu

Department: Department of Civil Engineering, Faculty of Engineering, Siam University, Bangkok, Thailand

Published: – – 2017

2018 5th Global Conference on Polymer and Composite Materials 2018, in Kitakyushu City, Kokura region, Japan


Abstract

To improve the performance of concrete, natural rubber latex (NRL) is mixed with concrete. It has been observed that rubber latex-modified concrete is more durable than conventional concrete due to superior strength. This study analyzed the physical and mechanical properties of concrete mixed with natural rubber latex. In this research, impacts of natural rubber latex on workability, bleeding of concrete, compressive strength, tensile strength, flexural strength, bond stress
and water absorption using concrete with a nominal concrete mix proportion of 1:2:4 (cement : sand : gravel) by volume. Rubber latex-modified concrete compositions containing 0%, 1%, 3%, 5%, 10%, and 15% by weight of cement were prepared or polymer concrete ratio (P/C), and the strength of the structure was tested after 28 days. The results indicated that the polymer cement ratio (P/C) of 1% gives the best performance with 245 ksc compressive strength, 35 ksc tensile strength, 46 ksc flexural strength, 34 ksc bond stress and average water absorption was 0.95%. Based on the results of this
study, polymer cement ratio (P/C) of 1% by weight is most recommended to be used with various types of concrete structures.

Key words: natural rubber latex, concrete, mechanical, polymer cement ratio

Mechanical and Physical Properties of Concrete Modified with Natural Rubber Latex

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