کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6725312 | 503610 | 2013 | 11 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Microstructural analysis of aerated cement pastes with fly ash, Metakaolin and Sepiolite additions
ترجمه فارسی عنوان
تجزیه و تحلیل میکرو سازه پاستای سیمان هوادهی با خاکستر، متاکائولین و سلیولیت
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موضوعات مرتبط
مهندسی و علوم پایه
سایر رشته های مهندسی
مهندسی عمران و سازه
چکیده انگلیسی
Products formation in aerated cement pastes, using aluminum powder as expansion agent, is studied in order to determine the effect of Metakaolin (MK) and Sepiolite (SP) addition as well as cement selection, in pore network. Products generated are related to cement hydration and chemical reactions involved in the aeration process. This is due to the batch materials and additions used in order to increase both, expansion rate and speed. XRD combined with DTA was used to characterize these products and their relation with pore network in the hardened foamed mortar, studied by SEM combined with EDX. As a conclusion, the presence of siliceous fly ashes (SFA) in ordinary Portland cement together with additions of MK or/and SP provides the largest expansion values beside a higher closed porosity of the foamed mortar. It is also stated that mixes with Metakaolin have better defined walls and almost closed cells that are important properties for thermal insulation materials and can be useful for ventilated double skin façade systems.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Construction and Building Materials - Volume 47, October 2013, Pages 282-292
Journal: Construction and Building Materials - Volume 47, October 2013, Pages 282-292
نویسندگان
Alberto Sepulcre Aguilar, Javier Pinilla Melo, Francisco Hernández Olivares,