Expanded Perlite as a Sustainable Building Material: A Systematic Review of Properties and Performance
持続可能な建築材料としての膨張パーライト：特性と性能に関する系統的レビュー (AI 翻訳)
A. Hzami, A. Abu-Rayash
🤖 gxceed AI 要約
日本語
本レビューは、膨張パーライトを建築材料として用いた100本の論文（1985-2024年）を分析。熱伝導率を最大0.034 W/m·Kまで低減し、35%置換で圧縮強度が50%向上。ただし30%超の置換では初期強度が60%以上低下するため、バランスの取れた配合設計が重要。低炭素建築に資する材料として有望。
English
This systematic review of 100 articles (1985-2024) on expanded perlite as a building material finds that it reduces thermal conductivity to as low as 0.034 W/m·K and improves compressive strength by up to 50% at 35% replacement. However, higher replacement (>30%) reduces early-age strength by over 60%, requiring balanced mix design. The material shows strong potential for low-carbon construction.
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CO2削減が急務であり、膨張パーライトのような軽量断熱材料はZEH・ZEB基準の達成や改修市場での活用が期待される。SSBJや有報での排出量開示には直接関係しないが、実務上の低炭素化選択肢として示唆に富む。
In the global GX context
Globally, the construction sector's 40% CO2 share drives interest in low-carbon materials. Expanded perlite offers thermal insulation and strength benefits that align with building decarbonization strategies, though the paper does not address disclosure frameworks like TCFD or ISSB. It contributes to the materials science foundation for transition finance in construction.
👥 読者別の含意
🔬研究者:Provides a comprehensive synthesis of perlite's mechanical and thermal properties for further optimization.
🏢実務担当者:Offers dosage guidelines (20% for strength/durability, up to 50% for insulation) for use in concrete mixes.
🏛政策担当者:Highlights a viable low-carbon building material that could be incentivized in green building codes.
📄 Abstract（原文）
The construction sector contributes approximately 40% of global energy-related CO2 emissions, necessitating the development of low-carbon and high-performance sustainable building materials. The lightweight volcanic glass known as expanded perlite is an excellent candidate due to its pozzolanic reactivity, thermal insulation, and self-compacting properties. The literature review presented here is based on 100 articles (1985–2024) and examines the mechanical, thermal, durability, and sustainability aspects of this material. According to the literature, the incorporation of expanded perlite significantly reduces thermal conductivity, from 1.81 W/m·K in conventional concrete to 0.69 W/m·K and further to 0.034–0.06 W/m·K in insulation-oriented mixes. In addition, ground perlite exhibits enhanced pozzolanic reactivity, yielding up to 50% higher compressive strength at a 35% replacement rate. When added to self-consolidating concrete, perlite at 220–260 kg/m3 makes mixes more durable by reducing permeability, carbonation, and chloride-ion migration. However, higher perlite replacement levels adversely affect mechanical performance, with early-age compressive strength decreasing by more than 60% when cement replacement exceeds 30%. The appropriate percentage of perlite depends on the desired outcome. A content of 20% is ideal for balancing strength and durability, while higher levels up to 50% improve insulation and reduce density (25–400 kg/m3). Overall, expanded perlite demonstrates strong potential to enhance durability, reduce permeability, and improve sulfate resistance, positioning it as a viable material for low-carbon construction systems.
🔗 Provenance — このレコードを発見したソース
- semanticscholar https://doi.org/10.3390/buildings16091724first seen 2026-06-29 06:41:42
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