Compressive mechanical and durability properties of concrete with polyethylene terephthalate and high-density polyethylene aggregates

Aocharoen, Yanika; Chotickai, Piya

doi:10.1016/j.clet.2023.100600

Cited by 6 publications

(1 citation statement)

References 44 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Their morphology does not allow for full characterization similar to natural or artificial lightweight aggregates. Characteristics of mechanically produced aggregates usually determined include particle size gradation, fineness modulus, particle density, water absorption, and specific gravity [16], [18], [44], [49].…”

Section: Introductionmentioning

confidence: 99%

Characterization of Heat-Processed Artificial Lightweight Aggregates from Polyethylene Terephthalate Plastic Waste

Uche,

Abubakar,

Nnamchi

et al. 2024

Preprint

View full text Add to dashboard Cite

Plastic waste is an undeniable source of pollution that threatens the existence of the earth’s flora and fauna. The bulk of plastic wastes generated globally does not go through the proper methods of disposal but is carelessly discarded into the aquatic or terrestrial environment. Current recycling efforts are largely inadequate and disposal in landfills is still fraught with environmental and land use challenges. The proper disposal of plastic waste, as well as mitigating the environmental, social, and health impacts of extracting natural aggregates can be achieved by incorporating plastic waste as aggregates in the construction industry. This paper presents a characterization of aggregates manufactured from polyethylene terephthalate plastic waste using thermal/mechanical methods. Morphological, intrinsic and mechanical characteristics of the produced aggregates were established using standard procedures and equipment. The results of morphological characterization show a dense graded aggregate with fineness modulus of 4.25, flakiness index of 26% and elongation index of 16%. Intrinsic characterization yielded particle density of 1330kg/m3, bulk density of coarse aggregates of 715kg/m3 and water absorption of 0.445%. Mechanical characteristics of aggregates were evaluated, with compressive strength of 50Mpa, Aggregate Crushing Value of 37%, Ten Percent Fines Value of 71KN, Aggregate Impact Value of 24% and Aggregate Abrasion Value of 20%. The characteristics of PET aggregates confirm their suitability for application in structural lightweight concrete and rigid pavement. The produced PET aggregates can be considered in mix design as a total or partial replacement of natural aggregates in concrete.

show abstract