دورية أكاديمية
Effect of CaSO4 Incorporation on Pore Structure and Drying Shrinkage of Alkali-Activated Binders
العنوان: | Effect of CaSO4 Incorporation on Pore Structure and Drying Shrinkage of Alkali-Activated Binders |
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المؤلفون: | Hyeongmin Son, Sol Moi Park, Joon Ho Seo, Haeng Ki Lee |
المصدر: | Materials, Vol 12, Iss 10, p 1673 (2019) |
بيانات النشر: | MDPI AG, 2019. |
سنة النشر: | 2019 |
المجموعة: | LCC:Technology LCC:Electrical engineering. Electronics. Nuclear engineering LCC:Engineering (General). Civil engineering (General) LCC:Microscopy LCC:Descriptive and experimental mechanics |
مصطلحات موضوعية: | slag, fly ash, CaSO4, pore structure, drying shrinkage, 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: | This present study investigates the effects of CaSO4 incorporation on the pore structure and drying shrinkage of alkali-activated slag and fly ash. The slag and fly ash were activated at a 5:5 ratio by weighing with a sodium silicate. Thereafter, 0%, 5%, 10%, and 15% of CaSO4 were incorporated to investigate the changes in phase formation and internal pore structure. X-Ray Diffraction (XRD), thermogravimetry (TG)/derivative thermogravimetry (DTG), mercury intrusion porosimetry (MIP), nuclear magnetic resonance (NMR), and drying shrinkage tests were carried out to find the correlation between the pore structure and drying shrinkage of the specimens. The results showed that CaSO4 incorporation increased the formation of thenardite, and these phase changes affected the pore structure of the activated fly ash and slag. The increase in the CaSO4 content increased the pore distribution in the mesopore. As a result, the capillary tension and drying shrinkage decreased. |
نوع الوثيقة: | article |
وصف الملف: | electronic resource |
اللغة: | English |
تدمد: | 1996-1944 |
Relation: | https://www.mdpi.com/1996-1944/12/10/1673; https://doaj.org/toc/1996-1944 |
DOI: | 10.3390/ma12101673 |
URL الوصول: | https://doaj.org/article/2945576db5ff4779a9fac26b5d7b7b40 |
رقم الأكسشن: | edsdoj.2945576db5ff4779a9fac26b5d7b7b40 |
قاعدة البيانات: | Directory of Open Access Journals |
تدمد: | 19961944 |
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DOI: | 10.3390/ma12101673 |