ポリプロピレン繊維がコンクリートの炭素隔離に与える影響の評価
Assessing the Impact of Polypropylene Fibers on the Carbon Sequestration of Concrete (原題)
Tayfun Uygunoğlu, Pelin Sertyeşilışık
🤖 gxceed AI 要約
日本語
本研究は、50mmのポリプロピレン繊維がコンクリートの炭酸化によるCO2固定能力に与える影響を促進炭酸化試験で検証した。繊維を0.3%および1.3%添加した供試体は無添加対照より高い重量増加（1.86%、2.25%対1.75%）を示し、CO2拡散が促進された。一方0.64%と1.0%では固定量がわずかに減少し、繊維体積率と炭素吸収の非線形関係が示唆された。
English
This study examines how 50 mm polypropylene fibers affect concrete's CO2 sequestration via accelerated carbonation testing. Specimens with 0.3% and 1.3% fiber fractions showed higher weight gains (1.86%, 2.25%) than controls (1.75%), indicating enhanced CO2 diffusion, while intermediate dosages (0.64%, 1.0%) slightly reduced carbon retention. The results reveal a non-linear relationship between fiber volume fraction and carbon uptake, suggesting optimized fiber dosages can improve both mechanical performance and CO2 capture in construction materials.
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
建設業のScope 3排出削減やカーボンクレジット創出に関わる材料レベル研究として、日本の建設・建材企業の脱炭素技術開発やSSBJ対応の基礎資料になり得る。ただし現段階では実務・政策への直接的接続は弱い。
In the global GX context
Adds to the emerging literature on concrete carbonation as a carbon-removal pathway relevant to construction-sector Scope 3 accounting and embodied-carbon disclosure under frameworks like ISSB and CSRD. The non-linear fiber-dosage effect offers a material-design lever for firms pursuing net-zero building materials.
👥 読者別の含意
🔬研究者:繊維添加率と炭酸化CO2固定量の非線形関係を示す実験データとして、材料設計研究の参照点になる。
🏢実務担当者:建材の炭素固定性能を高める繊維配合の最適化検討に資する基礎的知見を提供する。
🏛政策担当者:建設資材の炭素固定を排出削減・除去として評価する制度設計の際の材料科学的根拠の一例となる。
📄 Abstract（原文）
Tackling climate change and cutting greenhouse gas emissions compel the modern construction industry to develop more sustainable and environmentally friendly solutions. In this context, carbonation — a natural process in which concrete captures and stores carbon dioxide (CO2) within its structure throughout its service life — presents a significant potential for carbon sequestration strategies. This study investigates the impact of 50 mm long polymeric (polypropylene) fibers on the carbon sequestration capacity of con crete thro ugh accelerated carbonation testing. Within the scope of the research, concrete specimens containing polypropylene fibers at various volumetric fractions (0.3%, 0.64%, 1.0%, and 1.3%) were produced alongside fiber - free control specimens. The weight changes of the specimens before and after the carbonation process were precisely measured to quantitatively determine the amounts of trapped CO2. Experimental results demonstrated that fiber addition and dosage variations directly influence the carbon capture performance of concrete, creating distinct differences in weight gain. Concrete groups containing 0.3% and 1.3% polymeric fib ers exhibited hig her average weight increases (1.86% and 2.25%, respectively) compared to the control specimens (1.75%). This indicates that specific fiber networks optimize micro - cracks and the pore structure within the concrete, thereby accelerating CO2 diffusion and enhancing carbon sequestration capacity. Conversely, a slight decrease in carbon retention (1.69% and 1.68%) wa s observed at intermediate dosages such as 0.64% and 1.0%, pointing to a non - linear relationship between fiber volume fraction and carbon absorption. In conclusion, the use of 50 mm long polymeric fibers at optimized dosages not only improves mechanical performance but also enhances CO2 capture potential, offering a sustainable alternative for the construction sector to reduce the negative impacts of climate change.
🔗 Provenance — このレコードを発見したソース
- openalex https://doi.org/10.29227/im-2026-02-01-020first seen 2026-11-06 04:58:25
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