Related Experiment Video
Updated: Jul 19, 2025
09:06
The Effect of Construction and Demolition Waste Plastic Fractions on Wood-Polymer Composite Properties
Published on: June 7, 2020
8.1K
Utilizing Polyethylene Terephthalate PET in Concrete: A Review
Mand Kamal Askar1, Yaman S S Al-Kamaki2, Ali Hassan2
1Highways and Bridges Engineering, Technical College of Engineering, Duhok Polytechnic University, Duhok 42001, Iraq.
Polymers
|August 12, 2023
Summary
Recycling plastic waste, specifically polyethylene terephthalate (PET), as aggregate in concrete offers a sustainable solution. This green concrete approach reduces landfill burden and environmental pollution.
Area of Science:
- Materials Science
- Environmental Engineering
- Civil Engineering
Background:
- Growing plastic waste poses significant environmental and disposal challenges.
- Municipal solid waste (MSW) and industrial processes contribute to escalating plastic pollution.
- Limited landfill capacity necessitates innovative waste management strategies.
Purpose of the Study:
- To summarize research on utilizing polyethylene terephthalate (PET) in concrete construction.
- To evaluate PET as a partial replacement for concrete aggregates.
- To present data on mix design and the performance of PET-modified concrete.
Main Methods:
- Literature review of studies incorporating PET in concrete.
- Analysis of mixing designs for concrete with PET.
- Examination of concrete properties and behavior with PET inclusion.
Main Results:
- PET can be incorporated into concrete as a volume replacement or aggregate substitute.
- Data on mix proportions and the resulting concrete characteristics are presented.
- The use of PET in concrete influences its mechanical and physical properties.
Conclusions:
- Incorporating PET waste into concrete offers a viable route to "green concrete" production.
- This method aids in mitigating plastic waste accumulation and reducing landfill dependency.
- Utilizing PET in concrete can contribute to lowering carbon dioxide emissions and addressing plastic disposal issues.
Related Concept Videos
01:20Types of Step-Growth Polymers: Polyesters
2.3K
The introduction of polyesters has brought major development to the textile industry. The wrinkle-free behavior of polyester blends has eliminated the need for starching and ironing clothes.
Polyesters are commonly prepared from terephthalic acid and ethylene glycol; the crude product is known as poly(ethylene terephthalate) or PET. However, polyesters are synthesized industrially by transesterification of dimethyl terephthalate with ethylene glycol at 150 °C. The two reactants and the...
Polyesters are commonly prepared from terephthalic acid and ethylene glycol; the crude product is known as poly(ethylene terephthalate) or PET. However, polyesters are synthesized industrially by transesterification of dimethyl terephthalate with ethylene glycol at 150 °C. The two reactants and the...
2.3K
01:22Fiber Reinforced Concrete
102
Fiber-reinforced concrete significantly enhances the structural and nonstructural properties of traditional concrete by incorporating fibers like steel, glass, and polymers. These fibers, varying from natural ones such as sisal and cellulose to manufactured ones like polypropylene and Kevlar, are mixed into hydraulic cement with aggregates. Steel fibers, often preferred for their robustness, contribute to improved ductility, toughness, and post-cracking performance. The concrete is classified...
102
01:31Plasticizers
90
Water-reducers, or plasticizers, are chemical admixtures used in concrete to improve strength and workability. These additives reduce the water-cement ratio without compromising workability, lower the cement content while maintaining the same workability, or increase workability to assist concrete placement in inaccessible areas.
Plasticizers function by using surface-active agents to create repulsive electrostatic forces between cement particles. This dispersion enhances the concrete's...
Plasticizers function by using surface-active agents to create repulsive electrostatic forces between cement particles. This dispersion enhances the concrete's...
90
01:16Tensile Strength Considerations of Concrete
151
Considering the tensile strength of concrete involves recognizing that the theoretical strength of cement paste can be up to a thousand times higher than what is observed in practical applications. This significant discrepancy is largely attributed to the presence of microscopic cracks within the concrete. These cracks tend to amplify stress at their tips when a load is applied, a phenomenon explained by Griffith's theory of brittle fracture.
The dimensions and shape of a concrete specimen...
The dimensions and shape of a concrete specimen...
151
01:20Concrete
385
Concrete is a vital construction material extensively used worldwide, primarily valued for its strength, durability, and versatility, which it provides for various structural designs. Concrete generally comprises ingredients like Portland cement, coarse gravel, fine sand, and water. Concrete can be mixed by simple hand methods or industrially at computer-controlled plants. The mixture consists of aggregates and a paste made from water and Portland cement. This paste coats the aggregates and,...
385
01:30Superplasticizers
105
Superplasticizers are advanced admixtures that enhance the workability of concrete by lowering the water content without compromising the strength of the material. These substances are highly effective water reducers, improving concrete flow, making it easier to work with, and enabling concrete to reach inaccessible areas or densely reinforced sections without mechanical vibration. The key components in superplasticizers are either sulfonated melamine or naphthalene formaldehyde condensates,...
105