相关实验视频

Updated: May 15, 2025

The Effect of Construction and Demolition Waste Plastic Fractions on Wood-Polymer Composite Properties

The Effect of Construction and Demolition Waste Plastic Fractions on Wood-Polymer Composite Properties

Published on: June 7, 2020

在建筑行业中回收塑料废物

Nancy Sakr¹, Mohamed AbouZeid¹

¹Construction Engineering Department, The American University in Cairo, New Cairo 11835, Egypt.

|May 14, 2025

概括

回收塑料,特别是聚乙烯二甲 (PET) 和高密度聚乙烯 (HDPE),可以有效地作为混凝土路面的粗聚合物. 这种可持续的做法减少了填埋垃圾和环境影响.

科学领域:

建筑材料科学建筑材料科学
环境工程环境工程
可持续发展可持续发展可持续发展

背景情况:

塑料垃圾对环境构成重大挑战,其中许多塑料垃圾最终被填埋或焚烧.
由于其机械性能,再生塑料在建筑行业中具有作为可持续资源的潜力.
目前在建筑行业采用回收塑料的情况受到研究和废物管理基础设施的缺乏限制.

研究的目的:

调查使用回收聚乙烯二甲 (PET) 和高密度聚乙烯 (HDPE) 作为混凝土路面中的粗料的可行性.
评估包含回收塑料的建筑材料的性能提升.
量化环境效益,包括减少能源消耗和碳足迹.

主要方法:

机械回收PET和HDPE塑料. 在机械回收.
将再生PET和HDPE纳入混凝土路面混合物中,作为粗聚合物的部分替代品.
由此产生的混凝土路面材料的性能评估.

主要成果:

回收HDPE在混凝土路面应用中表现出卓越的效率和耐用性.
该研究的目标是实现15-20%的非可再生能源能源消耗减少.
预计的减少包括碳足迹减少15-30%,垃圾填埋塑料废物减少20-30%.

结论:

回收HDPE和PET显示出可持续混凝土路面建设的重大前景.
在混凝土中使用回收塑料可以减少塑料垃圾和减少对环境的影响.
进一步的研究和强大的废物管理系统对于广泛实施至关重要.

关键词:

建筑行业建筑行业建筑行业能源资源:能源资源是指能源资源.塑料废物塑料废物塑料废物回收混凝土的回收混凝土回收塑料回收利用的塑料.可持续性可持续性可持续性

更多相关视频

Isolation of Native Soil Microorganisms with Potential for Breaking Down Biodegradable Plastic Mulch Films Used in Agriculture

Isolation of Native Soil Microorganisms with Potential for Breaking Down Biodegradable Plastic Mulch Films Used in Agriculture

Published on: May 10, 2013

Forming Micro-and Nano-Plastics from Agricultural Plastic Films for Employment in Fundamental Research Studies

Forming Micro-and Nano-Plastics from Agricultural Plastic Films for Employment in Fundamental Research Studies

Published on: July 27, 2022

相关概念视频

Design Example: Sustainability in Concrete Building

Design Example: Sustainability in Concrete Building

As the construction industry moves towards more eco-friendly practices, concrete's adaptability and its ability to incorporate sustainable features make it a key material in the drive towards greener building solutions.
There are multiple approaches to achieve sustainability in a commercial concrete building. For instance, construct a concrete parking area under the building, utilizing pervious concrete paver blocks in open areas to facilitate rainwater collection through an underground...

Plasticizers

Plasticizers

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...

Superplasticizers

Superplasticizers

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,...

Plastic Deformations

Plastic Deformations

Plastic deformation represents a fundamental concept in materials science, which explains the irreversible change in the shape of a material when it experiences stress beyond its elastic capability. This phenomenon is important in structural engineering, especially in designing and analyzing cantilever beams—structures that are securely fixed at one end and bear loads at the opposite end. When these beams are subjected to loads within their elastic range, they will return to their...

Types of Step-Growth Polymers: Polyesters

Types of Step-Growth Polymers: Polyesters

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...

Fiber Reinforced Concrete

Fiber Reinforced Concrete

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...