We can't find the internet
Attempting to reconnect
Something went wrong!
Hang in there while we get back on track
Multicriteria Decision Making Guided Optimization of Recycled HDPE Fiber Content for Sustainable Utilization in Concrete
AI summary Read the abstract
Researchers incorporated recycled HDPE fibers from postconsumer plastic ropes into concrete at varying dosages and applied multicriteria decision-making to optimize the blend, finding peak compressive strength at 0.4% fiber content and the greatest durability gains — including reduced water absorption and carbonation — at 0.7–0.8%.
The transformation of plastic waste into structural concrete presents a promising avenue for reducing environmental impacts while enhancing material performance in alignment with global sustainability frameworks. This study examined the integration of recycled high-density polyethylene (rHDPE) fibers sourced from postconsumer plastic ropes into M30 grade concrete as a sustainable reinforcement strategy. Fibers measuring 30 mm in length and 0.4 mm in diameter were incorporated at volume fractions ranging from 0.3% to 0.8% to assess their effects on the fresh, mechanical, and durability properties of the concrete. The optimal compressive strength (50.36 MPa) was achieved at a fiber content of 0.4%, indicating a 12.5% increase over that of the control. The maximum enhancements in the splitting tensile strength, flexural strength, and shear strength were observed at a fiber content in the range of 0.4%–0.7%. Although the workability decreased by 66%, the durability was significantly enhanced as water absorption, sorptivity, and carbonation depth were reduced by 43.9%, 36.6%, and 28.9%, respectively, at a range of 0.7%–0.8% fiber dosage. The impact resistance increased by 59.4%, indicating an improved energy dissipation. A multicriteria decision-making (MCDM) framework was employed to determine the optimal fiber content based on the performance criteria. The utilization of rHDPE fibers fosters a circular economy by repurposing plastic waste into value-added construction materials. This approach supports sustainable development goals (SDG) 12 and 13 by mitigating plastic pollution and advancing ecoefficient concrete technology.
More Papers Like This
Utilization of Recycled Plastic Waste as Partial Substitute of Fine Aggregate in Eco-Friendly Concrete
AI summary Read the abstract
Researchers tested recycled plastic waste as a replacement for fine aggregate (sand) in concrete, mixing it in at 0%, 10%, 20%, and 30%. Concrete with 10% plastic waste had the highest compressive strength, while plain concrete (0%) had the lowest, and strength declined slightly at 20% and 30%.
Effect of Waste Plastic Fibres on the Mechanical Properties of Concrete
AI summary Read the abstract
Researchers evaluated concrete mixes incorporating waste plastic fibres at varying proportions, finding that the addition of recycled plastic fibres meaningfully improves tensile and flexural strength, crack resistance, and ductility compared to conventional concrete while maintaining acceptable compressive performance.
Utilization of Plastic Waste in Concrete Pavement
AI summary Read the abstract
Researchers investigated the use of recycled high-density polyethylene (HDPE) plastic waste as an aggregate in concrete pavement mix designs, finding that incorporation of HDPE improved mechanical performance and durability while reducing landfill waste and energy consumption in the concrete sector.
Experimental investigation on mechanical and durability properties of M30 concrete with HDPE plastic waste as partial coarse aggregate replacement
AI summary Read the abstract
Researchers tested concrete made by replacing part of the stone material (coarse aggregate) with shredded plastic waste from HDPE bottles and containers, at levels from 10% to 50%. Lab tests measured strength and durability, finding that replacing 10% of the aggregate with plastic waste worked best without weakening the concrete too much.
A Step towards Sustainable Concrete with Substitution of Plastic Waste in Concrete: Overview on Mechanical, Durability and Microstructure Analysis
AI summary Read the abstract
This review evaluates the use of plastic waste as a substitute material in concrete, analyzing its effects on mechanical strength, durability, and microstructure to assess its viability as a sustainable construction approach.
Research digests by email
When a large batch of papers lands in the Atlas, we read through it and send a short write-up of what stood out.