Comparative Analysis of the Carbon Footprint of Two Asphalt Concrete Mixtures: Conventional Hot Mix and Rubber Crumb Modified
二種類のアスファルトコンクリート混合物（従来のホットミックスとゴム粉末改質）のカーボンフットプリントに関する比較分析 (AI 翻訳)
A. D. Khakimova, Л. М. Молодкина, N. V. Maydanova
🤖 gxceed AI 要約
日本語
従来のホットミックスアスファルトと廃タイヤ由来のゴム粉末改質アスファルトのカーボンフットプリントを比較。ゴム粉末使用により総GHG排出量が約2.5%削減（1.46 kg CO2-eq./t）、主にビチューメンの部分代替による。原材料採取・輸送段階が83%以上を占め、サプライチェーンの重要性を示した。循環経済の原則に適合。
English
This study compares the carbon footprint of conventional hot mix asphalt and rubber crumb modified asphalt from recycled tires. Using rubber crumb reduced total GHG emissions by 1.46 kg CO2-eq./t (about 2.5%), mainly by partially replacing bitumen. Over 83% of emissions occur during raw material extraction and transportation, highlighting supply chain dependence. The technology aligns with circular economy principles.
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
日本では道路舗装の環境負荷低減が課題。本論文は廃タイヤ由来ゴム粉によるCO2削減効果を定量評価し、循環経済政策やグリーン購入法に示唆を与える。またサプライチェーン排出の重要性を指摘し、Scope3対応の参考になる。
In the global GX context
This paper provides a quantitative LCA of rubber crumb modified asphalt, relevant to global decarbonization of construction materials. It underscores supply chain emissions in asphalt production, offering insights for GHG accounting and circular economy strategies. Findings can inform sustainable procurement and carbon footprint reduction in infrastructure projects.
👥 読者別の含意
🔬研究者:Provides comparative LCA data and methodology for rubber crumb asphalt, useful for further research on waste utilization in construction.
🏢実務担当者:Road construction companies can use the emission reduction figures to support adoption of rubber crumb technology and for sustainability reporting.
🏛政策担当者:Offers evidence for policies promoting circular economy and low-carbon construction materials, potentially informing green public procurement guidelines.
📄 Abstract（原文）
A comparative analysis of the carbon footprint of two types of asphalt concrete mixtures – conventional hot mix and rubber crumb modified, obtained from recycled automobile tires – is presented. It is shown that the use of rubber crumb ensured a reduction in total greenhouse gas emissions by 1.46 kg CO 2 -eq./t of finished mixture (approximately 2.5 %), mainly due to partial replacement of the most carbon-intensive component – bitumen. It was established that more than 83 % of the carbon footprint is formed at the stages of raw material extraction and transportation, which indicates the dependence of the environmental efficiency of the product on the choice of suppliers and logistics. It is concluded that the technology of asphalt concrete modification with rubber crumb not only complies with the principles of the circular economy, ensuring waste utilization, but also demonstrates a positive environmental effect within the boundaries of the considered system.
🔗 Provenance — このレコードを発見したソース
- openalex https://doi.org/10.18412/1816-0395-2026-5-60-65first seen 2026-06-23 05:51:04
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