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JOURNAL OF MATERIALS AND ENGINEERING STRUCTURES 7 (2020) 57–72 61 pavement blocks are satisfying for ways light traffic, pedestrians walking and dense traffic status respectively if 10% - 50% plastic contents are utilized; and this modified pavement block can be contributed to discarding plastic materials across the world. Hilal NN et.al [24] used polyethylene waste as alter sand partially in production SCC and they showed it is possible to produce LWSCC by using a suitable percent of polyethylene waste substitution with fine aggregate. In addition, their workability enhanced and ductility improved, while the mechanical properties stay within the acceptable limits. From the preceding review, the utilize of waste plastic in concrete is growing more and more depending on the necessary sustainability of aggregate and the environmental require. According to the recent reviews, it can be observed that there is a significant amount of researches that studied concrete mechanical characteristics which involved PET molecules like a fine aggregate alteration partially. So, research had been studied the impact of the LDPE- aggregates on the physical and mechanical characteristics of concrete by one study. Therefore, further research is needed to assess PE waste as an aggregate in concrete manufacture. In this work, this investigation is carried out. Research significance 2 Experimental program 2.1 Materials The utilized materials in the present study for producing a normal strength concrete or mortar mix are water, cement, coarse aggregate, fine aggregate, and polyvinyl chloride (PE) waste granules. Ordinary Portland cement produced by the cement factory Al-Mass was adopted for all mixes. The physical and chemical, cement properties are presented in Tables 1 and 2, respectively. Table 1- Physical Properties of Cement Test result Limits of Iraqi Specification No.5/1984 Table 2- Chemical Properties of Cement Physical properties Setting time(minutes) Initial setting 120 ≥45 minutes Final setting 360 ≤ 600 minutes Fineness by Blaine method (m2/Kg) 300 ≥ 230 % Auto Clave 0.31 ≤ 0.8 Oxide CaO SiO2 Al2O3 Fe2O3 MgO K2O Na2O SO3 Lime saturation factor Insoluble Remains F.L Total Compound C3S C2S C3A C4AF Weight (%) Limits of Iraqi Specification No.5/1984 < < < 62.3 - 20.28 - 5.55 - 4.20 - 2.60 5.0 0.75 - 0.4 - 2.5 2.8 0.81 0.66 – 1.02 0.5 1.5 % 0.65 - 99.63 - Weight (%) Limits of Iraqi Specification No.5/1984 50.05 - 20.45 - 4.05 - 13.20 -PDF Image | Properties of Concrete and Mortar with LDPE Aggregate
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