Mechanical Performance and Low-Carbon Sustainability of Cement-Stabilized Macadam with Recycled Plastic Aggregate
リサイクルプラスチック骨材を用いたセメント安定処理砕石の力学性能と低炭素持続可能性 (AI 翻訳)
Guo H, Mingxiang Chi, Shibin Chen, Yunshi Yao, Weidong Guo, Chuanqiang Chen
🤖 gxceed AI 要約
日本語
本研究では、リサイクルプラスチック骨材（PA）で天然粗骨材を一部代替し、セメント安定処理砕石（CSM）の力学特性とライフサイクルアセスメント（LCA）による炭素排出削減ポテンシャルを評価。PA含有率20%で最大50.8%の炭素排出削減を達成し、16%含有時には靭性が28.39%向上。力学性能と低炭素便益の内部相関を解明し、持続可能な道路材料設計に科学的根拠を提供。
English
This study evaluates the mechanical properties and carbon reduction potential of cement-stabilized macadam (CSM) incorporating recycled plastic aggregate (PA) as partial replacement for natural coarse aggregate. Life cycle assessment shows a maximum carbon emission reduction of 50.8% at 20% PA content, while toughness improves by 28.39% at 16% PA content. The research clarifies the trade-off between mechanical strength and low-carbon benefits, providing technical support for sustainable road materials and waste plastic valorization.
Unofficial AI-generated summary based on the public title and abstract. Not an official translation.
📝 gxceed 編集解説 — Why this matters
日本のGX文脈において
日本でも道路舗装のGXが進む中、廃プラスチックの建設資材への活用は資源循環と脱炭素の両軸で重要。本研究成果は、LCAに基づく炭素排出削減効果と力学的性能のバランスを示しており、日本の土木工事における低炭素材料選定の参考になる。
In the global GX context
Globally, the construction sector seeks low-carbon alternatives for road infrastructure. This paper provides a quantitative LCA-based approach to evaluate carbon savings from using recycled plastic in road base materials, contributing to circular economy and decarbonization goals. It offers a replicable methodology for assessing trade-offs between mechanical performance and environmental impact.
👥 読者別の含意
🔬研究者:Provides a methodology for combined mechanical and LCA analysis of recycled aggregates, useful for material science and sustainable construction research.
🏢実務担当者:Offers data on optimal plastic aggregate content for balancing strength and carbon reduction, aiding road material design decisions.
🏛政策担当者:Supports policy on waste plastic utilization in infrastructure with quantified carbon benefits, relevant for green procurement standards.
📄 Abstract（原文）
Against the background of the global “dual carbon” strategic goal, low-carbon upgrading of road engineering and efficient recycling of waste plastics have become critical approaches to relieve the shortage of natural aggregates and control plastic pollution. Most existing studies only focus on the optimization of single mechanical indicators, while lacking collaborative analysis of mechanical performances and carbon reduction benefits, meaning they cannot provide sufficient scientific support for the design of low-carbon and sustainable road materials. In this study, recycled plastic aggregate (PA) was used to partially replace natural coarse aggregate, and its influence on the mechanical characteristics of cement-stabilized macadam (CSM) was systematically investigated. Combined with life cycle assessment (LCA), the carbon emission reduction potential was quantitatively evaluated, aiming to improve the toughness of road base materials and promote low-carbon sustainable development. The results demonstrate that when the PA content increases from 0% to 20%, the mechanical strength of CSM gradually decreases, while the toughness presents a steady upward trend, and the maximum carbon emission reduction rate reaches 50.8%. The optimal toughness improvement of 28.39% is obtained at the PA content of 16%. This study clarifies the internal correlation between mechanical behaviors and low-carbon benefits of recycled plastic aggregate, provides reliable technical support for the high-value utilization of waste plastics and the optimization of sustainable road materials, and offers important references for the green and low-carbon transformation of transportation infrastructure.
🔗 Provenance — このレコードを発見したソース
- openalex https://doi.org/10.3390/su18094479first seen 2026-05-17 05:43:41
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