کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
829737 1470344 2014 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Influence of curing conditions on properties of high calcium fly ash geopolymer containing Portland cement as additive
ترجمه فارسی عنوان
تاثیر شرایط خشک کردن بر خواص کربنات پتاسیم پتاس حاوی کلسیم به عنوان افزودنی
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی (عمومی)
چکیده انگلیسی
This paper investigated the mechanical properties and microstructure of high calcium fly ash geopolymer containing ordinary Portland cement (OPC) as additive with different curing conditions. Fly ash (FA) was replaced with OPC at dosages of 0%, 5%, 10%, and 15% by weight of binders. Setting time and microstructure of geopolymer pastes, and flow, compressive strength, porosity and water absorption of geopolymer mortars were studied. Three curing methods viz., vapour-proof membrane curing, wet curing and temperature curing were used. The results showed that the use of OPC as additive improved the properties of high calcium fly ash geopolymer. The strength increased due to the formation of additional C-S-H and C-A-S-H gel. Curing methods also significantly affected the properties of geopolymers with OPC. Vapour-proof membrane curing and water curing resulted in additional OPC hydration and led to higher compressive strength. The temperature curing resulted in a high early compressive strength development.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials & Design - Volume 53, January 2014, Pages 269-274
نویسندگان
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