دورية أكاديمية
Enhancing CO2-Cured cementitious binder with Mg-doped γ-C2S from high-Mg limestone
| العنوان: | Enhancing CO2-Cured cementitious binder with Mg-doped γ-C2S from high-Mg limestone |
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| المؤلفون: | Songhui Liu, Pengjie Rong, Saisai Zhang, Hui Guo, Xuemao Guan, Jianping Zhu, Tangwei Mi |
| المصدر: | Developments in the Built Environment, Vol 17, Iss , Pp 100312- (2024) |
| بيانات النشر: | Elsevier, 2024. |
| سنة النشر: | 2024 |
| المجموعة: | LCC:Engineering (General). Civil engineering (General) LCC:Building construction |
| مصطلحات موضوعية: | γ-C2S, Mg-doped, Bredigite, Merwinite, Carbonation, Engineering (General). Civil engineering (General), TA1-2040, Building construction, TH1-9745 |
| الوصف: | This study explores the use of Mg-doped γ-C2S, an alternative to conventional Portland cement, to address the environmental impact of the cement industry. γ-C2S, known for low hydration activity, shows promise as a CO2-cured binder. The research investigates Mg substitution in γ-C2S synthesis, utilizing high-Mg limestone resources. Varying Mg/Ca ratios in γ-C2S synthesis promoted bredigite and merwinite phases during calcination, enhancing specific surface area by over 40%. Optimal Mg doping significantly increased carbonation reactivity, resulting in a 20% strength boost (115 MPa) after 24h of CO2 curing. This improvement is attributed to enhanced crystallinity in carbonation products, namely hydromagnesite, nesquehonite, aragonite, and magnesite, leading to microstructure densification. The findings highlight Mg-doping as a promising strategy to enhance the carbonation performance of γ-C2S from high-Mg limestone, offering prospects for sustainable construction materials with reduced CO2 emissions. |
| نوع الوثيقة: | article |
| وصف الملف: | electronic resource |
| اللغة: | English |
| تدمد: | 2666-1659 |
| Relation: | http://www.sciencedirect.com/science/article/pii/S2666165923001941; https://doaj.org/toc/2666-1659 |
| DOI: | 10.1016/j.dibe.2023.100312 |
| URL الوصول: | https://doaj.org/article/4e2dada380d64e5f9120585a36e661b2 |
| رقم الأكسشن: | edsdoj.4e2dada380d64e5f9120585a36e661b2 |
| قاعدة البيانات: | Directory of Open Access Journals |
Full Text Finder | تدمد: | 26661659 |
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| DOI: | 10.1016/j.dibe.2023.100312 |