60 g/cm3 on addition of waste (Mondal et al. In the past few years, the plastic production has increased manifold and so does the plastic waste, but the problematic issue is that most of the plastic waste is going to the landfills or clogging our water bodies. 2020). The water absorption value of composite material was very small (Li et al.
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It has shown the effect of recycled waste plastic on the mechanical properties and durability (Babafemi et al. The specimens were then examined for workability, density, compressive strength, flexural strength, water permeability, static and dynamic modulus of elasticity and abrasion resistance. The weight replacement ratios of fine aggregates with waste PET aggregates were used in the percentages of 5, 10 and 15%, respectively, for replacing the same weight of fine aggregate. Plastic granules with particle sizes of go to this website 2 mm were obtained by recycling HIPS and LDPE plastic wastes. As the percentage of aggregate increased from 50 to 100%, the drying shrinkage of the SAC mixes increased by 19–54% after 182 days of curing. PET (polyethylene terephthalate), HDPE (high-density polyethylene), LDPE (low-density polyethylene), PVC (polyvinyl chloride), PP (polypropylene) and PS (polystyrene).
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SA replaced natural pumice lightweight coarse aggregate or Lytag aggregate in 25%, 50%, 75% and 100% by volume of concrete. The softening point was 81. 2017). has created a scenario of ‘pandemic of plastic pollution’. A study reported composite bricks made up of powdered polythene waste mixed with fly ash and tested for soundness, hardness, water absorption ability and compressive strength. The efficiency of the brick sample improved with the smallest polymeric grain additive of size 1 mm.
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Another important property is the workability of concrete. 2020). 2012). 2016). 2017, Hameed and Fatah Ahmed 2019
, Azhdarpour et al.
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2019). Maximum water absorption value was 1. All these results showed that the plastic sand bricks and paver blocks were of better quality than ash bricks and traditional clay bricks (Sellakutty et al. Fine aggregates were replaced with plastic fine (PF) aggregate measured as 10%, 15% and 20% by weight, and coarse aggregates were replaced with corresponding 15%, 20% and 25% plastic coarse (PC) aggregate. Accumulation of plastic waste over the years hop over to these guys the lack of suitable disposal techniques have given rise to a crucial and unparalleled crisis where plastic waste is clogging our water resources and waterways, overflowing the landfills, leaching into soil and transferring through air, thus polluting every natural resource in our environment. Workability of the concrete decreases with increasing percentage of plastic; however, it can be maintained to some extent by increasing the water/cement ratio (w/c) ratio.
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08 to 4. Growing amounts of plastic waste in our ecosystem can be strategically tackled by its recycling/reuse in an effective and beneficial manner. Another paper reported that by using 30% of E-waste, the slump value of concrete decreased from 128 (control) to 75 mm (30% E-waste) and compressive strength decreased from 47. 2017).
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2016). The control concrete had a thermal conductivity of 1. 3-m-thick external wall made of PET-based samples were 13. 4%, 10. It also touches the usage of medical plastic waste and admixtures of plastic waste with waste rubber in construction materials. Addition of waste plastics reduces the workability of concrete which is measured in terms of slump value.
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DST/SSTP/Rajasthan/331). The water absorption capability of plastic sand bricks was 1. Plastic and ceramic waste combined in a 3:1 ratio gave the best block (Monish et al. et al. 25%.
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Concrete you can try these out containing 10% of waste PET showed higher values of compressive strength and modulus of elasticity as compared to other specimens. Concrete with 75% plastic particles had a low dynamic modulus and thermal conductivity, according to the test results. 0001 mmSmall microplastics: particle size 0. It is resistant to ozone, UV radiations and acid–alkali attack.
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High-density polyethylene (HDPE) in different percentages as 2. Nowadays ash from thermal power plants is also used for bricks and other construction material. The authors compared the compressive strength, unit weight and workability of PET aggregate concrete (PAC) to that of natural aggregate concrete (NAC). .