Review of Carbonation Resistance in Hydrated Cement Based Materials
المؤلفون المشاركون
Wachira, Jackson Muthengia
Thiong’o, Joseph Karanja
Marangu, Joseph Mwiti
المصدر
العدد
المجلد 2019، العدد 2019 (31 ديسمبر/كانون الأول 2019)، ص ص. 1-6، 6ص.
الناشر
Hindawi Publishing Corporation
تاريخ النشر
2019-01-01
دولة النشر
مصر
عدد الصفحات
6
التخصصات الرئيسية
الملخص EN
Blended cements are preferred to Ordinary Portland Cement (OPC) in construction industry due to costs and technological and environmental benefits associated with them.
Prevalence of significant quantities of carbon dioxide (CO2) in the atmosphere due to increased industrial emission is deleterious to hydrated cement materials due to carbonation.
Recent research has shown that blended cements are more susceptible to degradation due to carbonation than OPC.
The ingress of CO2 within the porous mortar matrix is a diffusion controlled process.
Subsequent chemical reaction between CO2 and cement hydration products (mostly calcium hydroxide [CH] and calcium silicate hydrate [CSH]) results in degradation of cement based materials.
CH offers the buffering capacity against carbonation in hydrated cements.
Partial substitution of OPC with pozzolanic materials however decreases the amount of CH in hydrated blended cements.
Therefore, low amounts of CH in hydrated blended cements make them more susceptible to degradation as a result of carbonation compared to OPC.
The magnitude of carbonation affects the service life of cement based structures significantly.
It is therefore apparent that sufficient attention is given to carbonation process in order to ensure resilient cementitious structures.
In this paper, an indepth review of the recent advances on carbonation process, factors affecting carbonation resistance, and the effects of carbonation on hardened cement materials have been discussed.
In conclusion, carbonation process is influenced by internal and external factors, and it has also been found to have both beneficial and deleterious effects on hardened cement matrix.
نمط استشهاد جمعية علماء النفس الأمريكية (APA)
Marangu, Joseph Mwiti& Thiong’o, Joseph Karanja& Wachira, Jackson Muthengia. 2019. Review of Carbonation Resistance in Hydrated Cement Based Materials. Journal of Chemistry،Vol. 2019, no. 2019, pp.1-6.
https://search.emarefa.net/detail/BIM-1171864
نمط استشهاد الجمعية الأمريكية للغات الحديثة (MLA)
Marangu, Joseph Mwiti…[et al.]. Review of Carbonation Resistance in Hydrated Cement Based Materials. Journal of Chemistry No. 2019 (2019), pp.1-6.
https://search.emarefa.net/detail/BIM-1171864
نمط استشهاد الجمعية الطبية الأمريكية (AMA)
Marangu, Joseph Mwiti& Thiong’o, Joseph Karanja& Wachira, Jackson Muthengia. Review of Carbonation Resistance in Hydrated Cement Based Materials. Journal of Chemistry. 2019. Vol. 2019, no. 2019, pp.1-6.
https://search.emarefa.net/detail/BIM-1171864
نوع البيانات
مقالات
لغة النص
الإنجليزية
الملاحظات
Includes bibliographical references
رقم السجل
BIM-1171864
قاعدة معامل التأثير والاستشهادات المرجعية العربي "ارسيف Arcif"
أضخم قاعدة بيانات عربية للاستشهادات المرجعية للمجلات العلمية المحكمة الصادرة في العالم العربي
تقوم هذه الخدمة بالتحقق من التشابه أو الانتحال في الأبحاث والمقالات العلمية والأطروحات الجامعية والكتب والأبحاث باللغة العربية، وتحديد درجة التشابه أو أصالة الأعمال البحثية وحماية ملكيتها الفكرية. تعرف اكثر