کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
208050 | 461236 | 2007 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Alkali-activated fly ash: Effect of thermal curing conditions on mechanical and microstructural development – Part II
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موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
مهندسی شیمی (عمومی)
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چکیده انگلیسی
The development of mechanical strength and the mineral and microstructural characteristics of the alkali activated fly ash (AAFA), reveal the importance of the role played by the curing conditions prevailing during setting and hardening process: curing in a covered mould (CCM) at 95 °C; dry curing (DC) at 150 °C, or steam curing (ST) at 95 °C. CCM yields the highest compressive strength (up to 102 MPa after 8 h of curing) and can be readily used in any AAFA system. DC is only recommended for NaOH-based systems (low SiO2/Al2O3 ratio), since waterglass-based mixes tend to retard reaction kinetics. SC, in turn, has an intermediate effect on strength development, between CCM and DC.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Fuel - Volume 86, Issue 3, February 2007, Pages 315–322
Journal: Fuel - Volume 86, Issue 3, February 2007, Pages 315–322
نویسندگان
G. Kovalchuk, A. Fernández-Jiménez, A. Palomo,