Preparation and solidification mechanism of biomimetic mineralized cement using L-Asp as crystal modifier
This paper adopted the biomimetic mineralized method (BMM) with L-Aspartate (L-Asp) as the crystal modifier to develop the biomimetic mineralized cement material. The structural integrity and mechanical property of cemented samples treated by BMM were studied through the direct shear test and unconf...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2023-05-01
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| Series: | Journal of Materials Research and Technology |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2238785423010438 |
| _version_ | 1797798717945806848 |
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| author | Yu Diao Chao Yang Jianyou Huang Shi Liu Xin Guo Weiqiang Pan |
| author_facet | Yu Diao Chao Yang Jianyou Huang Shi Liu Xin Guo Weiqiang Pan |
| author_sort | Yu Diao |
| collection | DOAJ |
| description | This paper adopted the biomimetic mineralized method (BMM) with L-Aspartate (L-Asp) as the crystal modifier to develop the biomimetic mineralized cement material. The structural integrity and mechanical property of cemented samples treated by BMM were studied through the direct shear test and unconfined compressive strength (UCS) test. Meanwhile, the micro-morphology and mechanism of calcium carbonate crystals generated from biomimetic mineralization in water solution and sand environment were investigated by XRD, FTIR, XPS, and SEM. The results reveal that the biomimetic mineralized cement with L-Asp modifier is feasible to cement the loose sand into a high-strength integrated structure. With the gradually increasing spraying cycles, the ultimate shear strength of the cemented samples was significantly improved. Moreover, the hydrogen–bond interaction inducing calcium carbonate crystals and sand particles, as well as the particle agglomerated growth are the fundamental reasons for the cementation of loose sand. The feasibility of biomimetic mineralized cement using an L-Asp modifier is verified. |
| first_indexed | 2024-03-13T04:08:03Z |
| format | Article |
| id | doaj.art-191a0fdfde424f5e8c33fc51ba405bd9 |
| institution | Directory Open Access Journal |
| issn | 2238-7854 |
| language | English |
| last_indexed | 2024-03-13T04:08:03Z |
| publishDate | 2023-05-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of Materials Research and Technology |
| spelling | doaj.art-191a0fdfde424f5e8c33fc51ba405bd92023-06-21T06:57:40ZengElsevierJournal of Materials Research and Technology2238-78542023-05-012477567770Preparation and solidification mechanism of biomimetic mineralized cement using L-Asp as crystal modifierYu Diao0Chao Yang1Jianyou Huang2Shi Liu3Xin Guo4Weiqiang Pan5School of Civil Engineering, Tianjin University, Tianjin 300072, China; Key Laboratory of Coast Civil Structure Safety, Tianjin University, Ministry of Education, Tianjin, 300072, ChinaChina State Construction Engineering Corporation, Beijing 100029, ChinaSchool of Civil Engineering, Tianjin University, Tianjin 300072, China; Corresponding author.China State Construction Engineering Corporation, Beijing 100029, ChinaSchool of Civil Engineering, Tianjin University, Tianjin 300072, ChinaShanghai Tunnel Engineering Construction Co., Ltd., Shanghai 200032, ChinaThis paper adopted the biomimetic mineralized method (BMM) with L-Aspartate (L-Asp) as the crystal modifier to develop the biomimetic mineralized cement material. The structural integrity and mechanical property of cemented samples treated by BMM were studied through the direct shear test and unconfined compressive strength (UCS) test. Meanwhile, the micro-morphology and mechanism of calcium carbonate crystals generated from biomimetic mineralization in water solution and sand environment were investigated by XRD, FTIR, XPS, and SEM. The results reveal that the biomimetic mineralized cement with L-Asp modifier is feasible to cement the loose sand into a high-strength integrated structure. With the gradually increasing spraying cycles, the ultimate shear strength of the cemented samples was significantly improved. Moreover, the hydrogen–bond interaction inducing calcium carbonate crystals and sand particles, as well as the particle agglomerated growth are the fundamental reasons for the cementation of loose sand. The feasibility of biomimetic mineralized cement using an L-Asp modifier is verified.http://www.sciencedirect.com/science/article/pii/S2238785423010438Biomimetic mineralized methodCrystal modifierSolidification mechanismMesoscopic structureMechanical property |
| spellingShingle | Yu Diao Chao Yang Jianyou Huang Shi Liu Xin Guo Weiqiang Pan Preparation and solidification mechanism of biomimetic mineralized cement using L-Asp as crystal modifier Journal of Materials Research and Technology Biomimetic mineralized method Crystal modifier Solidification mechanism Mesoscopic structure Mechanical property |
| title | Preparation and solidification mechanism of biomimetic mineralized cement using L-Asp as crystal modifier |
| title_full | Preparation and solidification mechanism of biomimetic mineralized cement using L-Asp as crystal modifier |
| title_fullStr | Preparation and solidification mechanism of biomimetic mineralized cement using L-Asp as crystal modifier |
| title_full_unstemmed | Preparation and solidification mechanism of biomimetic mineralized cement using L-Asp as crystal modifier |
| title_short | Preparation and solidification mechanism of biomimetic mineralized cement using L-Asp as crystal modifier |
| title_sort | preparation and solidification mechanism of biomimetic mineralized cement using l asp as crystal modifier |
| topic | Biomimetic mineralized method Crystal modifier Solidification mechanism Mesoscopic structure Mechanical property |
| url | http://www.sciencedirect.com/science/article/pii/S2238785423010438 |
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