Open AccessMechanical Properties of Lightweight Concrete Made with Shredded Waste Polypropylene Yogurt Containers
Author(s) -
Azian Hashim,
Aseel Ibrahem Mahmood,
Abdullah Amar Al-Baaji,
Niveen Jamal Abdulkader
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/978/1/012022
Subject(s) - polypropylene , materials science , aggregate (composite) , compressive strength , absorption of water , composite material , curing (chemistry) , properties of concrete , plastic waste , pulp and paper industry , waste management , engineering
The partial replacement of natural coarse (gravel) aggregate by waste plastic aggregate to produce lightweight concrete has become one of the major challenges in recent years and stresses on the need for a constant and authoritative development for the betterment of the environment. This work was carried out to investigation the possibilities of using waste polypropylene yogurt containers as polymer aggregate in concrete application. The concrete samples with 0%, 5%, 10%, 15%, 20% and 25% recycled waste plastic aggregate as partial replacement by mass of natural coarse aggregate are prepared after a curing period of 28 days. The effect of recycled plastic aggregate on compressive strength, density and water absorption of natural concrete are studied and compared with the results of specimen without plastic aggregate. Both compressive strength and density decreased with increasing the amount of plastic aggregate. The highest reduction in compressive strength and density were 50% and 19% respectively of concrete cubes containing 25% wt polypropylene waste aggregate in comparison of traditional concrete. It was found that water absorption increased as the plastic aggregate content increased up to 15% wt and then decreased when replaced coarse aggregate by 20% wt and 25% wt by recycled polypropylene aggregate. This study is recommended to use recycled polypropylene yogurt containers as a partial substance of traditional coarse (gravel) concrete mix up to 15% wt for applications include those where low compressive strengths and low cost production are desirable.