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Properties of different artificial lightweight aggregates and their effect on concrete strength

Mustafa, Mohamed Muftah and Mokhatar, Shahrul Niza and Mohd Jaini, Zainorizuan (2015) Properties of different artificial lightweight aggregates and their effect on concrete strength. In: 9th Malaysian Technical Universities Conference on Engineering and Technology 2015 (MUCET 2015), 11 – 13 October 2015, Johor Baharu, Malaysia.

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Abstract

Plastic bags have become an essential part of people’s lives. Hence, the amount of plastic bags used annually has been growing steadily. In this two-part study, the mechanical and physical properties of three different types of plastic bag aggregates were described. These lightweight plastic aggregates were then used as substitute for natural aggregates at percentages of 0%, 3%, 6%, and 9%. Recyclable plastic bags measuring 10–20 mm were gathered then heated in an oven at approximately 150 °C for nearly 10 min. The first part of the study investigated the properties of the three different types of plastic bag aggregates and those of normal aggregates in terms of aggregate impact value, aggregate crushing value, specific gravity, and water absorption. The second part involved a compressive test on the different concretes and a comparison of the results with those obtained for the control concrete. A significant improvement in compressive strength was observed in the concrete mixes that contained 6% directly heated plastic bag aggregates and 6% and 9% glass-covered plastic aggregates. These aggregates were found to be a feasible replacement for coarse aggregates used in conventional concrete

Item Type: Conference or Workshop Item (Paper)
Uncontrolled Keywords: artificial aggregates; chemical properties; physical properties
Subjects: T Technology > TA Engineering (General). Civil engineering (General) > TA401-492 Materials of engineering and construction. Mechanics of materials
Divisions: Faculty of Civil and Environmental Engineering > Department of Structural and Material Engineering
Depositing User: Mrs. Nurhayati Ali
Date Deposited: 14 Feb 2016 07:07
Last Modified: 14 Feb 2016 07:07
URI: http://eprints.uthm.edu.my/id/eprint/7624
Statistic Details: View Download Statistic

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