Carbon Emission Accounting and Reduction Pathways in the Construction Stage of Road Engineering under the "Dual Carbon" Background
「ダブルカーボン」背景における道路工事建設段階の炭素排出算定と削減経路 (AI 翻訳)
Zhenwang Yan
🤖 gxceed AI 要約
日本語
中国の「ダブルカーボン」目標下で、道路建設段階の炭素排出をLCAと排出係数法で算定。材料生産が全体の65～75%を占め、アスファルト混合物とセメント安定処理砕石が主要因。輸送・機械稼働は各15～20%、10～15%。低炭素材料や効率的輸送などの削減経路を提案。
English
Under China's dual carbon goals, this study quantifies carbon emissions from road construction using LCA and emission factors. Material production dominates (65-75%), with asphalt and cement-stabilized aggregates as key contributors. Proposes reduction pathways: low-carbon materials, optimized transport, efficient machinery, and improved construction techniques.
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
日本の道路建設におけるカーボンニュートラル推進やインフラの脱炭素化に示唆を与える。特に、材料生産段階の排出割合が高いことは、日本の建設業界での低炭素材料の採用やサプライチェーン排出削減に参考となる。
In the global GX context
Contributes to global infrastructure decarbonization by providing empirical emission factors and reduction pathways for road construction, relevant for countries aligning with ISSB and TCFD disclosure requirements in the construction sector.
👥 読者別の含意
🔬研究者:Provides a case study on emission accounting in road construction, useful for refining LCA methodologies in infrastructure.
🏢実務担当者:Offers actionable insights for construction firms to identify high-emission materials and adopt reduction strategies.
🏛政策担当者:Informs policy on low-carbon infrastructure standards and procurement guidelines.
📄 Abstract（原文）
Under China's "dual carbon" goals, accurate accounting and reduction of carbon emissions during road construction are important for promoting low-carbon transportation infrastructure. Focusing on the construction stage of road engineering, this study applies the emission factor method within a life-cycle assessment framework. Carbon emissions are divided into four categories: material production, material transportation, construction machinery operation, and on-site electricity consumption. A typical provincial highway reconstruction project is selected as a case study to quantify emissions from major materials and energy use. The results show that material production is the dominant source, accounting for 65%–75% of total construction-stage emissions, with asphalt mixture and cement-stabilized crushed stone contributing the largest shares. Material transportation and machinery operation account for approximately 15%–20% and 10%–15%, respectively. Based on the results, low-carbon materials, optimized transportation, energy-efficient machinery, and improved construction technologies are proposed as key reduction pathways.
🔗 Provenance — このレコードを発見したソース
- openalex https://doi.org/10.54254/2755-2721/2026.ch36120first seen 2026-08-13 05:08:48
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