Engineering Properties of Concrete with Waste Recycled Plastic: A Review

Babafemi, Adewumi John; Šavija, Branko; Paul, Suvash Chandra; Anggraini, Vivi

doi:10.3390/su10113875

Cited by 187 publications

(146 citation statements)

References 77 publications

(171 reference statements)

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“…erefore, as the amount of plastic aggregates increased, the slump increased due to a larger area of smooth surface. It was also found that the density of concrete decreased proportionally with increasing replacement of plastic aggregates, as plastics have lower density than natural aggregates [6,7].…”

Section: Introductionmentioning

confidence: 93%

Modification of Waste Aggregate PET for Improving the Concrete Properties

Lee,

Paul,

Kong

et al. 2019

Advances in Civil Engineering

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Disposal of plastic wastes causes negative impacts including degradation of land and ocean and climate change. Reusing plastic wastes in concrete is one of the effective methods of reducing plastic disposal. Polyethylene terephthalate (PET) is one of the most abundantly available plastic wastes as it is commonly used for plastic bottles and food containers. This paper investigates the effects of treating PET wastes using hydrogen peroxide solution (H2O2) and calcium hypochlorite solution (Ca(ClO)2) before incorporating in concrete as coarse aggregate replacements. The physical and mechanical properties of concrete were analyzed for three different percentages, namely, 10%, 20%, and 30%, replacement of natural aggregates with plastic aggregates. For all percentage of replacements, it was found that chemically treated plastic aggregates have no effects on the fresh density, but the slump decreased due to roughened surface of treated plastic aggregates. Chemical treatment improved the bond strength between cementitious matrix and plastic aggregates and reduced the gap at the interfacial transition zone (ITZ). These phenomena contributed to the improvement the compressive strength and lower the permeability and porosity.

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Section: Introductionmentioning

confidence: 93%

Modification of Waste Aggregate PET for Improving the Concrete Properties

Lee,

Paul,

Kong

et al. 2019

Advances in Civil Engineering

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“…Slump is the most commonly used variable for determining the workability performance of concrete in its fresh state. e particle size distribution, particle shape, water-binder (w/b) ratio, temperature, and the amount of admixture added to the concrete mix directly influence the workability properties of concrete [39].…”

Section: Packed Platy Particles Of Mkmentioning

confidence: 99%

A Review of the Engineering Properties of Metakaolin Based Concrete: Towards Combatting Chloride Attack in Coastal/Marine Structures

Pillay

Olalusi

Awoyera

et al. 2020

Advances in Civil Engineering

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Changing human lifestyle and increasing urbanisation are contributory factors to the high demand for concrete construction materials across the globe. With the imminent developments in the unpopulated marine/coastal zones, higher installation of concrete facilities is still expected. However, poor design and construction procedures coupled with inadequate materials selection and exposure to aggressive environmental conditions, such as chloride laden environments, often result in the reduced aesthetic and structural performance of concrete. Deterioration of reinforced concrete structures located in a coastal/marine setting can influence the safety, economic, and sustainability aspects of society. Hence, there is an increased need for alternate binder systems with the ability to reduce the effects of chloride attack in concrete. This paper presents a critical review of the engineering properties of metakaolin (MK) based concrete exposed to chloride attack. The key advantages and limitations of using MK for concrete production purposes were outlined and evaluated. Areas for future research were also highlighted in this paper. Based on the favourable 28-day compressive strength (73–84 MPa) and durability performance documented across the numerous past year studies that were reviewed, it can be concluded that MK is a viable alternate binder material for combatting chloride attack in coastal/marine concrete structures. This, in conjunction with its lack of chemical CO2 emissions, proves that MK can be used to improve the serviceability and sustainability states of marine structures. The viewpoint of this review will guide concrete constructors and researchers on a possible framework for the utilisation of metakaolin for enhancing durability concrete in aggressive environments.

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“…Among suspected drawbacks of the use of plastic aggregate, is the lower mechanical properties such as lower flexural strength [19], lower dynamic elastic modulus [20]. There are also limits of the percentage of using recycled plastic, such as 50% [21].…”

Section: Introductionmentioning

confidence: 99%

Examining Polyethylene Terephthalate (PET) as Artificial Coarse Aggregates in Concrete

et al. 2020

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This study aims to examine the effect of recycled Polyethylene Terephthalate (PET) artificial aggregate as a substitute for coarse aggregate on the compressive strength and flexural strength, and the volume weight of the concrete. PET plastic waste is recycled by heating to a boiling point of approximately 300°C. There are five variations of concrete mixtures, defined the percentage of PET artificial aggregate to the total coarse aggregate, by 0, 25, 50, 75 and 100%. Tests carried out on fresh concrete mixtures are slump, bleeding, and segregation tests. Compressive and flexural strength tests proceeded based on ASTM 39/C39M-99 and ASTM C293-79 standards at the age of 28 days. The results showed that the use of PET artificial aggregate could improve the workability of the concrete mixture. The effect of PET artificial aggregate as a substitute for coarse aggregate on the compressive and flexural strength of concrete is considered very significant. The higher the percentage of PET plastic artificial aggregate, the lower the compressive and flexural strength, and the volume weight, of the concrete. Substitution of 25, 50, 75 and 100% of PET artificial aggregate gave decreases in compressive strength of 30.06, 32.39, 41.73 and 44.06% of the compressive strength of the standard concrete (18.20 MPa), respectively. The reductions in flexural strength were by respectively 19.03, 54.50, 53.95 and 61.00% of the standard concrete's flexural strength (3.59 MPa). The reductions in volume weight of concrete were by respectively 8.45, 17.71, 25.07 and 34.60% of the weight of the standard concrete volume of 2335.4 kg/m3 Doi: 10.28991/cej-2020-03091626 Full Text: PDF

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Engineering Properties of Concrete with Waste Recycled Plastic: A Review

Cited by 187 publications

References 77 publications

Modification of Waste Aggregate PET for Improving the Concrete Properties

Modification of Waste Aggregate PET for Improving the Concrete Properties

A Review of the Engineering Properties of Metakaolin Based Concrete: Towards Combatting Chloride Attack in Coastal/Marine Structures

Examining Polyethylene Terephthalate (PET) as Artificial Coarse Aggregates in Concrete

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