Open AccessThe Mechanical Properties of Brick Containing Recycled Concrete Aggregate and Crumb Rubber as Sand Replacement
Author(s) -
Faisal Sheikh Khalid,
Mohamad Yuzwan Aliff Aminuddin,
Shahiron Shahidan,
J. M. Irwan,
Mohd Halim Irwan Ibrahim
Publication year - 2020
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/917/1/012020
Subject(s) - brick , compressive strength , aggregate (composite) , absorption of water , cement , materials science , natural rubber , crumb rubber , building material , composite material , geotechnical engineering , engineering
Recycled Concrete Aggregate (RCA) and crumb rubber are one of the recyclable building wastes. This would be the good candidate to replace the natural aggregate in concrete, since we know these material’s physical properties are strong and ductile. In concrete production, demand for sand has increased which has led to problems in the industry. As a result, the sand price rose, which in effect influenced the cement and sand brick prices. This research focuses on sand cement brick performance, containing recycled concrete aggregate and crumb rubber. This study aims to determine the mechanical properties of sand cement brick containing recycled concrete aggregate (RCA) and crumb rubber (CR) wastes, such as compressive strength and water absorption. The brick specimens were prepared using 100 % natural sand, they were then replaced by RCA at 15%, 30%, 45% and 60% with proportions of CR consisting of 1.5%, 3.0%, 4.5% and 6.0% by weight of natural sand. Just RCA 60 percent with 6.0 percent CR achieves lower strength than normal bricks based on the compressive strength tests whereas others display a high strength. Nevertheless, as predicted, all design mix reaches strength greater than 7N/mm 2 . Besides that, 30 per cent of RCA with 3.0 per cent CR is the most desirable mix design that achieves high compressive power.