Sustainable Replacement of Dry Lean Concrete with Locally Stabilized Soil–GSB Mixtures for Rigid Pavement Base Applications
乾燥コンクリートの持続可能な代替としての現地安定化土とGSB混合物の剛性舗装基盤への適用 (AI 翻訳)
Kuldeep Kumar
🤖 gxceed AI 要約
日本語
本研究は、乾燥コンクリート（DLC）に代わり、現地安定化土とGSB混合物を用いた舗装基盤層の持続可能性を評価。実験とLCAにより、セメント使用量とCO2排出量の削減、機械的特性の維持が確認された。
English
This study evaluates the feasibility of using locally stabilized soil–GSB mixtures as a sustainable replacement for dry lean concrete in rigid pavement bases. Lab tests and life cycle assessment show reduced cement use and embodied carbon while maintaining structural performance.
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
日本の道路建設ではCO2排出削減が求められており、本技術はセメント使用量削減に寄与する可能性がある。ただし、日本では既に様々な低炭素舗装技術が検討されているため、差別化点を明確にする必要がある。
In the global GX context
This paper contributes to the global push for low-carbon infrastructure by demonstrating a viable alternative material that reduces cement content. It aligns with ISSB/CSRD requirements for embodied carbon disclosure in construction.
👥 読者別の含意
🔬研究者:材料特性とLCAの知見を基盤とした低炭素舗装研究の参考になる。
🏢実務担当者:DLC代替材としての技術的実現可能性を評価する際の基礎データを提供する。
🏛政策担当者:持続可能なインフラ基準策定における低炭素材料の採用可能性を示す。
📄 Abstract（原文）
High cement use, nature depletion of natural aggregates and environmental load in the con- struction of roads have been concerns over the widespread use of Dry Lean Concrete (DLC) for the rigid pavement base layer. There is a need for sustainable infrastructure, which has led to an increasing focus on sustainable base materials that are ecologically friendly and yet perform well. The objective of this study was to determine the feasibility of using locally stabilized soil – Gran- ular Sub-Base (GSB) mixtures of Ordinary Portland Cement (OPC) and a chemical admixture to replace the conventional use of the DLC. Laboratory tests to compare the compaction charac- teristics, unconfined compressive strength and durability of the mix tested under an accelerated wet-dry cycle were conducted, as was rigid pavement analysis to assess structural suitability and cradle-to-construction life cycle assessment for environmental performance. The use of GSB led to a better gradation and packing of particles and higher strength properties, with a unique re- duction of degradation at moisture. The mechanical and durability properties were acceptable for stabilised mixtures to be used in pavement base applications while the performance in terms of structural behaviour was similar to that of a traditional DLC design. The environment assess- ment confirmed that the cement and its embodied carbon were reduced in the proposed approach, adding to its sustainability. The results proved that locally stabilized soil–GSB mixtures are a technically viable and eco-friendly option for the construction of rigid pavement bases.
🔗 Provenance — このレコードを発見したソース
- semanticscholar https://doi.org/10.52783/dxjb.v38.459first seen 2026-07-03 05:54:31
🔔 こうした論文の新着を逃したくない方は キーワードアラート に登録（無料・3キーワードまで）。
gxceed は公開メタデータに基づく研究支援データセットです。要約・翻訳・解説は AI 支援で生成されています。 最終的な解釈・検証は利用者が原典資料に基づいて行うことを前提とします。