Some properties of concrete with plastic aggregate derived from shredded PVC sheets

Mohammed, Azad A.; Mohammed, Ilham I.; Mohammed, Shuaaib A.

doi:10.1016/j.conbuildmat.2018.12.145

Cited by 113 publications

(54 citation statements)

References 21 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The concrete mix lost about 50% of its strength only after replacing 5% of coarse aggregate with waste plastic (the strength dropped from 29.5 to 14.5 MPa) while increasing the replacement to 25% led to over 85% loss in the compressive strength (4.2 MPa with 25% replacement). These results agree with what other researchers reported [35,36,41,55,56]. This decrease could be due to the weak pond between the plastic aggregate and the cement paste since the plastic has a smooth surface which weakens the interfacial transition zone [37,39].…”

Section: Compressive Strengthsupporting

confidence: 92%

Influence of Using Waste Plastic and/or Recycled Rubber as Coarse Aggregates on the Performance of Pervious Concrete

Cole

Bakheet²,

Akib

2020

Eng

View full text Add to dashboard Cite

Flooding is one of the climatic change consequences that has become a dangerous threat to many coastal cities. Pervious concrete is considered a solution to decrease rainwater runoff and mitigate flood effects, as it allows water to percolate through the ground and prevent possible damage. Using waste products as aggregates in pervious concrete not only exploits waste materials and makes it valuable but also reduces the amount of this waste ending in the landfill or harming the environment, and it decreases the demand for natural resources. Infiltration rate test and compressive strength tests were conducted to investigate the effect of using waste plastic and/or recycled rubber as concrete coarse aggregates with different ratios (5%, 10%, 15%, 20%, and 25%) on the pervious concrete. The results showed that increasing the waste materials in concrete decreased the compressive strength for all ratios while increased the infiltration rate values.

show abstract

Section: Compressive Strengthsupporting

confidence: 92%

Influence of Using Waste Plastic and/or Recycled Rubber as Coarse Aggregates on the Performance of Pervious Concrete

Cole

Bakheet²,

Akib

2020

Eng

View full text Add to dashboard Cite

show abstract

“…Moreover, recent studies have shown the effect of incorporating plastic waste to the mechanical properties of concrete. A decreasing trend in mechanical properties with increasing amount of plastic was generally observed across different research [16][17][18]. However, an increase in compressive, split tensile, and flexural strengths were observed at lower amounts of plastic replacement.…”

Section: Introductionmentioning

confidence: 72%

Compressive Strength and Bulk Density of Concrete Hollow Blocks (CHB) Infused with Low-density Polyethylene (LDPE) Pellets

et al. 2020

View full text Add to dashboard Cite

Infusing plastic waste to concrete and masonry structures is an increasingly common industry practice that has the potential to create an environment-friendly material that can improve some of the material’s properties, craft a novel means to repurpose plastic waste, and reduce the need for mining aggregates in the environment. This concept has been studied extensively in different forms of concrete, as shown by several studies; however, there is a dearth of studies focusing on the incorporation plastic waste in concrete hollow blocks (CHB). In this study, we aim to fill that gap by investigating on the effects of incorporating low-density polyethylene (LDPE), a commonly used plastic material, to CHB on its compressive strength and bulk density. Samples of varying percentages of LDPE replacement by volume (0, 10, 20, 30 and 40%) were fabricated and tested. Results showed a general trend of decreasing compressive strength and bulk density upon increasing the amount of LDPE pellets in CHB, which was also observed in previous studies. However, the compressive strength of CHB increased at 10% LDPE replacement, a result similar to a previous study. It was inferred that the strength of the plastic material could have a direct contribution to the compressive strength of CHB at low percentage of aggregate replacement. Statistical analysis showed that the mix with 10% LDPE pellets as replacement to sand was the best among the samples tested. It was shown that CHB infused with LDPE pellets has a higher compressive strength than what is normally used in the Philippines. It was concluded that based on compressive strength and bulk density, LDPE pellets is a viable material to use as partial replacement to sand in non-load bearing CHB.

show abstract

“…The field of research on the assessment of the application of plastic waste in concrete mixtures has gained popularity in the last few decades. The use of waste plastic bottles [3], waste PVC pipe [4], and shredded and recycled plastic waste [5][6][7][8][9] has been investigated by various researchers. Numerous studies have also been carried out on the usage of scrap rubber in both mortar and concrete [10,11].…”

Section: Introductionmentioning

confidence: 99%

Towards Eco-Flowable Concrete Production

2020

View full text Add to dashboard Cite

Environmental concerns have increased due to the amount of unused/expired plastic medical waste generated in hospitals, laboratories, and other healthcare facilities, in addition to the fact that disposing of such wastes with extremely low degradation levels causes them to remain in the environment for extended periods of time. These issues have led researchers to develop more environmentally friendly alternatives for disposing of plastic medical waste in Australia. This study is an attempt to assess the impacts of using expired plastic syringes as fine aggregate on fresh and hardened characteristics of flowable concrete, which might provide a solution to environmental concerns. Six mixtures of flowable concrete with water-to-cement ratios of 0.38 were studied. It was found that using recycled aggregate in up to 20% can improve the workability and increase the V-funnel values of flowable concrete mixtures. However, using waste aggregates in more than 30% caused an inapt flowability. Adding waste aggregate at the 30%–50% replacement level led to a decrease in the L-box ratio. To verify the utility and the efficacy of this experiment, the connections between different rheological test measurements were also compared by implementing the Pearson correlation function. The mechanical properties of the mixes containing recycled aggregates were decreased at the age of seven days; however, at later ages, waste aggregates increased the strength at the 10%–30% replacement levels.

show abstract

Some properties of concrete with plastic aggregate derived from shredded PVC sheets

Cited by 113 publications

References 21 publications

Influence of Using Waste Plastic and/or Recycled Rubber as Coarse Aggregates on the Performance of Pervious Concrete

Influence of Using Waste Plastic and/or Recycled Rubber as Coarse Aggregates on the Performance of Pervious Concrete

Compressive Strength and Bulk Density of Concrete Hollow Blocks (CHB) Infused with Low-density Polyethylene (LDPE) Pellets

Towards Eco-Flowable Concrete Production

Contact Info

Product

Resources

About