دورية أكاديمية
Shrinkage Reduction in Nanopore-Rich Cement Paste Based on Facile Organic Modification of Montmorillonite
| العنوان: | Shrinkage Reduction in Nanopore-Rich Cement Paste Based on Facile Organic Modification of Montmorillonite |
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| المؤلفون: | Fengyuan Yang, Ying Yang, Shaoyou Chen, Chao Jin, Jun Jiang, Tie Liu, Fei Lv, Chenxi Yang, Zhongyuan Lu, Jun Li |
| المصدر: | Materials, Vol 17, Iss 4, p 922 (2024) |
| بيانات النشر: | MDPI AG, 2024. |
| سنة النشر: | 2024 |
| المجموعة: | LCC:Technology LCC:Electrical engineering. Electronics. Nuclear engineering LCC:Engineering (General). Civil engineering (General) LCC:Microscopy LCC:Descriptive and experimental mechanics |
| مصطلحات موضوعية: | nanopore-rich cement paste, shrinkage, pore structure, organic modification, montmorillonite, Technology, Electrical engineering. Electronics. Nuclear engineering, TK1-9971, Engineering (General). Civil engineering (General), TA1-2040, Microscopy, QH201-278.5, Descriptive and experimental mechanics, QC120-168.85 |
| الوصف: | The organic modification of montmorillonite was successfully achieved using cetyltrimethyl ammonium bromide under facile conditions. The modified montmorillonite was subsequently used for the fabrication of montmorillonite-induced nanopore-rich cement paste (MNCP), and the shrinkage behavior and fundamental performance of MNCP were also investigated. The results indicate that alkali cations on a montmorillonite layer surface were exchanged by using CTAB under 80 °C, successfully achieving the organic modification of montmorillonite. As a pore-forming agent, the modified montmorillonite caused a reduction in shrinkage: the 28-day autogenous shrinkage at a design density of 400 kg/m3 and 800 kg/m3 was reduced to 2.05 mm/m and 0.24 mm/m, and the highest reduction percentages during the 28-day drying shrinkage were 68.1% and 62.2%, respectively. The enlarged interlamellar pores and hydrophobic effects caused by the organic modification of montmorillonite aided this process. Organic-modified montmorillonite had a minor influence on dry density and thermal conductivity and could contribute to an enhancement of strength in MNCP. |
| نوع الوثيقة: | article |
| وصف الملف: | electronic resource |
| اللغة: | English |
| تدمد: | 17040922 1996-1944 |
| Relation: | https://www.mdpi.com/1996-1944/17/4/922; https://doaj.org/toc/1996-1944 |
| DOI: | 10.3390/ma17040922 |
| URL الوصول: | https://doaj.org/article/acf4e46a3f664efb9d8aa648c880c6df |
| رقم الأكسشن: | edsdoj.f4e46a3f664efb9d8aa648c880c6df |
| قاعدة البيانات: | Directory of Open Access Journals |
Full Text Finder | تدمد: | 17040922 19961944 |
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| DOI: | 10.3390/ma17040922 |