持続可能な建設代替材としての振動圧縮硫酸カルシウムプレファブ要素の開発と性能評価
Development and Performance Evaluation of Vibrocompressed Calcium Sulfate Prefabricated Elements as a Sustainable Construction Alternative (原題)
Carlos Antonino Cabrera, Antonio Martínez Gabarrón, Francesco Barreca, L. Jara, Jose Antonio Flores Yepes
🤖 gxceed AI 要約
日本語
セメント不使用の硫酸カルシウム系プレファブ要素を振動圧縮工法で製造し、実機産業条件下で工程検証と初期物性評価を行った研究。10〜20分での脱型・パレット化を可能にし、正規化圧縮強度最大2.90 N/mm2、乾燥密度約1228 kg/m3を達成、非耐力用途への適合性を示した。環境・経済効果は予備的考察に留まり、今後のLCA・技術経済評価が課題である。
English
A process-validation study producing cement-free vibrocompressed calcium sulfate prefabricated elements under real industrial conditions, enabling demolding within 10–20 min. Units reached normalized compressive strength up to 2.90 N/mm2 and dry density ~1228 kg/m3, suitable for non-load-bearing use. Environmental and economic benefits remain preliminary pending LCA and techno-economic assessment.
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
建設セクターは国内CO2排出の大宗を占め、Scope 3カテゴリ1（購入資材）や embodied carbon 開示の重要性が高まる中、セメント代替材の実機検証はSSBJ・有報での建材由来排出削減の説明材料になり得る。ただし定量効果が未提示のため現時点では参考情報にとどまる。
In the global GX context
Embodied carbon in construction materials is increasingly targeted by CSRD/ISSB building-sector disclosures and green procurement rules; cement-free alternatives with industrial feasibility are relevant to Scope 3 Category 1 accounting, though the absence of quantified LCA limits immediate disclosure use.
👥 読者別の含意
🔬研究者:セメント代替建材の工業スケール製造可能性と初期力学物性の実証データを提供する。
🏢実務担当者:非耐力用途での低炭素建材採用検討の際、調達・Scope 3算定に必要な物性・工程情報の参照点となる。
🏛政策担当者:建設資材の脱炭素化支援策を設計する際、実機検証段階の技術オプションとして把握しておく価値がある。
📄 Abstract（原文）
The buildings and construction sector is a major contributor to global environmental impact, accounting for 34% of global energy demand and 37% of energy- and process-related CO2 emissions in 2022. This context motivates the development of alternative construction materials with lower embodied energy and reduced environmental impact. In this study, vibrocompressed calcium sulfate prefabricated elements were developed and experimentally evaluated as an alternative to conventional concrete-based units. Unlike traditional gypsum molding processes, the proposed vibrocompression route enables the production of semi-dry mixtures with reduced water content, allowing rapid demolding and palletization within 10–20 min. The study was designed as a process-validation campaign under real industrial production conditions (LOREV 1010/A), combined with an initial technical characterization of the manufactured units. The experimental program focused on manufacturing feasibility and on the initial physical and mechanical characterization of the prefabricated elements, including aggregate granulometric control, dry density, normalized compressive strength, and microstructural observations. Under the selected process conditions, the units reached normalized compressive strength values of up to 2.90 N/mm2 and dry density values of approximately 1228 kg/m3, indicating technical suitability for non-load-bearing applications. From a process-route perspective, the cement-free formulation and the use of gypsum-based aggregates support the technical plausibility of a more circular construction system. The environmental and economic implications of the proposed system are discussed from a preliminary process perspective and should be quantified in future life cycle and techno-economic assessments.
🔗 Provenance — このレコードを発見したソース
- semanticscholar https://www.mdpi.com/2071-1050/18/6/2672/pdffirst seen 2026-10-31 05:47:42 · last seen 2026-11-03 05:37:03
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