アロフェン及びハロイサイトを含む煆焼粘土のセメント混和材への適用検討

• Material Type: 記事
• Title: アロフェン及びハロイサイトを含む煆焼粘土のセメント混和材への適用検討
• Author Heading: 福島 悠太; 大崎 雅史; 伊藤 貴康; 斎藤 豪
• Publication Date: 2024-03-29
• Publication Date (W3CDTF): 2024-03-29
• Periodical title: セメント・コンクリート論文集
• No. or year of volume/issue: 77 1
• Volume: 77
• Issue: 1
• Pages: 550-557
• Publication date of volume/issue (W3CDTF): 2024-03-29
• ISSN (Periodical Title): 09163182
• Publication (Periodical Title): Japan Cement Association
• Text Language Code: ja
• Subject Heading: SCMs; 火山ガラス微粉末; アロフェン; ハロイサイト; 石灰石; 強度; Volcanic glass powder; Allophane; Halloysite; Limestone; Compressive Strength
• Target Audience: 一般
• DOI: 10.14250/cement.77.550; https://doi.org/10.14250/cement.77.550
• Access Restrictions: インターネット公開
• Related Material (URI): https://www.jstage.jst.go.jp/article/cement/77/1/77_550/_pdf
• References: Phase and structural features of tubular halloysite (7 Å); https://cir.nii.ac.jp/crid/1360018293569694080; The origin of the pozzolanic activity of calcined clay minerals: A comparison between kaolinite, illite and montmorillonite; https://cir.nii.ac.jp/crid/1360298340689903616; Volcanic Soils; https://cir.nii.ac.jp/crid/1360298341048587776; Calcination-induced changes in structure, morphology, and porosity of allophane; https://cir.nii.ac.jp/crid/1360298343505095552; Effects of acid treatment on the physico-chemical and pore characteristics of halloysite; https://cir.nii.ac.jp/crid/1360299772424065024; The use of the volcanic powders as supplementary cementitious materials for environmental-friendly durable concrete; https://cir.nii.ac.jp/crid/1360581244268222976; Effects of calcination and acid treatment on improving benzene adsorption performance of halloysite; https://cir.nii.ac.jp/crid/1360581246478922368; Investigation of the calcined kaolinite content on the hydration of Limestone Calcined Clay Cement (LC3); https://cir.nii.ac.jp/crid/1360861291274964096; Chapter 2 Structures and Mineralogy of Clay Minerals; https://cir.nii.ac.jp/crid/1361137045020092288; Assessment of material characteristics of ancient concretes, Grande Aula, Markets of Trajan, Rome; https://cir.nii.ac.jp/crid/1362262945636509056; Calcined clay limestone cements (LC3); https://cir.nii.ac.jp/crid/1362825894129316480
• Data Provider (Database): 国立情報学研究所 : CiNii Research; https://cir.nii.ac.jp/
• Original Data Provider (Database): Japan Link Center; https://japanlinkcenter.org/top; Crossref; https://www.crossref.org

• Summary, etc.: <p>In this study, volcanic glass powder, allophane, and halloysite were calcined and we evaluated performance as SCMs. Compared to the pre-calcination, there was no change in the compressive strength of calcined volcanic glass powder when used as SCMs, while the compressive strength of calcined allophane and calcined halloysite was greatly increased when used as SCMs. In addition, when using calcined allophane and halloysite, the replacement of limestone increased the compressive strength at 7 days, and the compressive strength at 28 days was comparable to that of the binder without limestone replacement. The reaction of calcined allophane and halloysite as SCMs with cement is found to be affected by the clay content and the presence of limestone.</p>; <p>本研究では、火山ガラス微粉末、アロフェンならびにハロイサイトを煆焼し、それらのSCMsとしての性能を評価した。煆焼前と比べて、煆焼火山ガラス微粉末をSCMsとして使用した場合、強度変化はなく、煆焼アロフェンならびに煆焼ハロイサイトをSCMsとして使用した場合、強度は大きく向上した。また、煆焼アロフェンや煆焼ハロイサイトの場合、石灰石を置換することで材齢7日強度が向上し、材齢28日強度は石灰石無置換のものと同程度であった。煆焼アロフェンならびに煆焼ハロイサイトをSCMsとして使用した場合のセメントとの反応は、粘土鉱物の含有量、反応性ならびに石灰石の置換により影響を受ける。</p>
• DOI: 10.14250/cement.77.550
• Access Restrictions: インターネット公開
• Data Provider (Database): 科学技術振興機構 : J-STAGE; http://www.jstage.jst.go.jp