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View metadata, citation and similar papers at core.ac.uk brought to you by CORE provided by Université Mouloud Mammeri de Tizi Ouzou (UMMTO): Research Review of Sciences and... JOURNAL OF MATERIALS AND ENGINEERING STRUCTURES 7 (2020) 57–72 57 Research Paper Mechanical Properties of Concrete and Mortar Containing Low Density Polyethylene Waste Particles as Fine Aggregate Abdulrahman S. Mohammed a, Taghreed Kh. Mohammed Ali b,*, Noor A. Rajab c, Nahla Hilal a a Dams and Water Resources Eng. Dept. College of Engineering-University of Anbar, Iraq. b Department of Architecture Engineering, Koya University, University Park, Danielle Mitterrand Boulevard, Koysinjaq KOY45, Kurdistan region, Iraq. c College of Engineering, University of Anbar, Anbar, Iraq ARTICLE INFO Article history : Received : 26 September 2019 Revised : 27 December 2019 Accepted : 12 January 2020 Keywords: LDPE Ultrasonic pulse velocity Splitting tensile strength Compressive strength 1 Introduction ABSTRACT Iraq industrial activities related to huge amounts of solid, non-biodegradable waste, waste low density Polyethylene (LDPE) plastic being among the well-known. So in this study, the scarped LDPE food boxes were transformed into fine particles and used as a sand for cement mortar and concrete. LDPE wastes were utilized to alter 0 to 25% of fine aggregates in mortar mixtures and 0% to 30% in concrete mixes at an increment of 5%. Compressive strength and dry density were tested for all mortar and concrete specimens. In addition, splitting tensile strength and ultrasonic pulse speed were tested for specimens of concrete. Results show that mass, pulse speed of ultrasonic, splitting and compressive tensile strengths were lowered as the size of LDPE raised. The lowest value of dry density, compressive strength and splitting strength was 2240 kg/m3, 18.7 MPa and 1.68 MPa, respectively, for 15% replacement of sand by the LDPE waste in concrete specimens. Whilst, the value of ultrasonic pulse velocity of LDPE concrete mixtures tends to decline lower than the reference values, but it remains nearly to the stander concrete mixtures and can be classified as excellent quality concrete. The density and compressive strength were decreased by using LDPE waste in mortar mixes for all replacement ratios reaching 12% and 42% respectively for 25% substitute. Various kinds of polymers are in use today, because of their satisfactory properties and relatively low cost. There is no doubt that this large usage is accompanied with a huge quantity of post consumed wastes. These wastes are increasing day by day and can cause a severe attack to the land and the environment. To solve this problem there is a need to set a program for the waste stream management. Unfortunately, till now most of the post consumed plastic wastes are transferred to land filling. However, this process is not accepted in most of the developed countries and other methods of recycling, including * Corresponding author. Tel.: +964771428729. E-mail address: taghreed.khaleefa@koyauniversity.org e-ISSN: 2170-127X,PDF Image | Properties of Concrete and Mortar with LDPE Aggregate
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