Development of Sustainable Sand Cement Bricks Incorporating Coal Fly Ash and Magnesium Oxide for Enhanced CO2 Sequestration
CO2隔離の強化のための石炭フライアッシュと酸化マグネシウムを組み込んだ持続可能な砂セメントレンガの開発 (AI 翻訳)
F. Khalid, S. H. Saaidin, C. Quan, C. K. Jun, S. Ayob, Z. Zaki, S. A. Mangi
🤖 gxceed AI 要約
日本語
本研究は、石炭フライアッシュ（CFA）と酸化マグネシウム（MgO）をセメント・砂の代替として部分使用し、CO2隔離を強化したサンドセメントレンガの新規製造法を提案する。実験計画法を用いて温度、CO2濃度、CFA・MgO含有量の影響を調べた結果、MgOは炭酸化を促進するが圧縮強度を低下させ、高CO2濃度は強度を向上させることが分かった。この材料はCO2吸収能が高く、産業副産物の利用とCO2固定化の二重の環境利益を提供する。
English
This study proposes a novel method for making sand cement bricks with partial substitution of cement and sand by coal fly ash (CFA) and magnesium oxide (MgO) to enhance CO2 sequestration. Using a 2k full factorial design, the effects of temperature, CO2 concentration, and CFA/MgO content on compressive strength and carbonation depth were examined. Results show that MgO accelerates carbonation but reduces strength, while higher CO2 concentrations improve strength via calcium carbonate formation. The material demonstrates high carbon uptake potential, offering dual environmental benefits of waste reduction and CO2 fixation.
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
日本では建設分野の脱炭素化が急務であり、CCU技術として建築材料へのCO2固定化が注目されている。本研究のフライアッシュとMgOを用いたレンガは、セメント産業のCO2排出削減と産業副産物の有効活用に貢献する可能性がある。
In the global GX context
This research contributes to global efforts to decarbonize the built environment by developing carbon-negative construction materials. It aligns with CCUS strategies and circular economy principles, offering a scalable solution for reducing embodied carbon in buildings.
👥 読者別の含意
🔬研究者:This paper provides experimental data on the effects of CFA, MgO, and CO2 concentration on brick properties, useful for further optimization of carbonated construction materials.
🏢実務担当者:Construction material manufacturers can explore the use of CFA and MgO in brick production to reduce carbon footprint and utilize industrial waste.
📄 Abstract（原文）
The development of environmentally friendly building materials with carbon capture capabilities has been driven by the growing need to lower atmospheric carbon dioxide (CO2) emissions. In order to improve CO2 sequestration and lessen dependency on Portland cement, this study presents a novel method for making sand cement bricks by partially substituting coal fly ash (CFA) and magnesium oxide (MgO) for cement and sand. The effects of temperature, CO2 curing concentration, and CFA and MgO content on the bricks’ compressive strength and carbonation depth were examined using a 2k full factorial design. Although a higher MgO content decreased compressive strength, the results showed that MgO significantly accelerated carbonation. However, strength was effectively enhanced by higher CO2 concentrations due to the quick formation of calcium carbonate. Within the tested range, the curing temperature had little effect. The material’s high potential for carbon uptake was demonstrated by the fact that carbonation depth was primarily driven by CO2 concentration. By using industrial by-products to create low-carbon building materials, this research provides a sustainable solution that has two environmental advantages: it reduces waste and sequesters CO2. The results support the global effort to reduce the built environment’s carbon footprint by offering a promising avenue for scalable application in green construction.
🔗 Provenance — このレコードを発見したソース
- semanticscholar https://doi.org/10.1088/1755-1315/1619/1/012004first seen 2026-06-29 06:59:37
🔔 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。