دورية أكاديمية
Cement Kiln By-Pass Dust: An Effective Alkaline Activator for Pozzolanic Materials
| العنوان: | Cement Kiln By-Pass Dust: An Effective Alkaline Activator for Pozzolanic Materials |
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| المؤلفون: | Lukáš Kalina, Vlastimil Bílek, Tomáš Kiripolský, Radoslav Novotný, Jiří Másilko |
| المصدر: | Materials, Vol 11, Iss 9, p 1770 (2018) |
| بيانات النشر: | MDPI AG, 2018. |
| سنة النشر: | 2018 |
| المجموعة: | LCC:Technology LCC:Electrical engineering. Electronics. Nuclear engineering LCC:Engineering (General). Civil engineering (General) LCC:Microscopy LCC:Descriptive and experimental mechanics |
| مصطلحات موضوعية: | cement kiln by-pass dust, alkali activation, blast furnace slag, admixture, 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: | Cement kiln by-pass dust (CKD) is a fine-grained by-product of Portland clinker manufacturing. Its chemical composition is not suitable for returning back into feedstock and, therefore, it has to be discharged. Such an increasing waste production contributes to the high environmental impact of the cement industry. A possible solution for the ecological processing of CKD is its incorporation into alkali-activated blast furnace slag binders. Thanks to high alkaline content, CKD serves as an effective accelerator for latent hydraulic substances which positively affect their mechanical properties. It was found out that CKD in combination with sodium carbonate creates sodium hydroxide in situ which together with sodium water glass content increases the dissolution of blast furnace slag particles and subsequently binder phase formation resulting in better flexural and compressive strength development compared to the sample without it. At the same time, the addition of CKD compensates the autogenous shrinkage of alkali-activated materials reducing the risk of material cracking. On the other hand, this type of inorganic admixture accelerates the hydration process causing rapid loss of workability. |
| نوع الوثيقة: | article |
| وصف الملف: | electronic resource |
| اللغة: | English |
| تدمد: | 1996-1944 11091770 |
| Relation: | http://www.mdpi.com/1996-1944/11/9/1770; https://doaj.org/toc/1996-1944 |
| DOI: | 10.3390/ma11091770 |
| URL الوصول: | https://doaj.org/article/b0c6ddaf79154521ba10e800c7a3d284 |
| رقم الأكسشن: | edsdoj.b0c6ddaf79154521ba10e800c7a3d284 |
| قاعدة البيانات: | Directory of Open Access Journals |
Full Text Finder | تدمد: | 19961944 11091770 |
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| DOI: | 10.3390/ma11091770 |