Open AccessSulphate attack Resistance of Geo-polymer Concrete made with Partial Replacement of Coarse Aggregate by Recycled Coarse Aggregate
Author(s) -
T. Srinivas,
R.N. Koushik
Publication year - 2019
Publication title -
international journal of innovative technology and exploring engineering
Language(s) - English
Resource type - Journals
ISSN - 2278-3075
DOI - 10.35940/ijitee.l2509.1081219
Subject(s) - aggregate (composite) , durability , polymer concrete , compressive strength , materials science , polymer , magnesium , properties of concrete , composite material , geotechnical engineering , metallurgy , geology , cement
The primary intent of this paper is to study replacement of coarse aggregate with RCA of M40 grade concrete in different proportions such as 0%,10%, 20%, 30% and 40% and also to collate the results of geo-polymer concrete made with recycled coarse aggregates(GPCRCA) with geo-polymer concrete of natural coarse aggregate(GPCNA) and controlled concrete of respective grade. Geo-polymer concrete (GPC) is observed to be more resistant towards sulphate attack, with both in (CA) and (RCA) to a replacement of 30%, when it is compared with the similar grade of controlled concrete(CC). The durability of the concrete cubes are analyzed by immersing in 5% concentration solutions for a time period of 15, 45,75 and 105 days, The change of weight and compressive strength towards resistance is evaluated . Results stipulated that Geo-polymer concrete is highly resistant to Sodium sulphate and Magnesium sulphate.