Durability of Recycle Aggregate Concrete Using Chopped Basalt Fiber

Authors

  • Prof. Md Abdullah Shariff , Khaja Begum, Md Abrar Ullah Khan

Abstract

The utilization of recycled aggregates in production of concrete opens a host of new possibilities for the reuse of materials in the construction industry for achieving sustainable development. Strength and durability of concrete block made of recycled aggregate will be less than that of new aggregate concrete. So as to increase the strength and durability of concrete, fibers are added. Among the natural fibers the basalt is considered to have exceptional properties with respect to durability. Basalt fiber is a high-performance non-metallic fiber that is formed by melting basalt rock at high temperatures. In this study, ninety-nine cubes of dimension 150x150x150mm, thirty-six cylinders of dimension 100mm diameterx50mm height and twelve cylinders of dimension 150mm diameter x 300mm height were casted and tested. Concrete specimens of M35 grade in which natural coarse aggregateisreplacedbyrecycleaggregateintheproportionof0%, 25%, 50%, 75% and 100% with optimized percentage of basalt fiber were casted and tested to examine durability parameters such as sulphate attack, acid attack, sorptivity and rapid chloride penetration tests

Published

2020-05-30

Issue

Section

Articles