کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8107543 | 1522189 | 2013 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Geopolymer synthetized from bottom coal ash and calcined paper sludge
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی انرژی
انرژی های تجدید پذیر، توسعه پایدار و محیط زیست
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چکیده انگلیسی
This study deals with the development of geopolymers synthetized from industrial waste containing aluminosilicates. Geopolymers are inorganic polymers formed by the activation of amorphous aluminosilicates (Al2O3.SiO2), which react in a strongly alkaline medium. Bottom ash (SiO2/Al2O3Â =Â 3.3-4.5) was used as source of aluminosilicate and sodium hydroxide (NaOHÂ =Â 5, 10 and 15Â M) and sodium silicate (Na2SiO3, SiO2/Na2OÂ =Â 1.58) were used as alkaline medium. Calcined paper sludge was used to increase the reactivity of the partially crystallized bottom ash. The solid waste was characterized by XRF and XRD and the geopolymer samples were characterized by XRF, XRD, SEM, FTIR and compressive strength tests. The best results were obtained with a solution of 15Â M NaOH and sodium silicate and a mixture of 2:1 bottom ash and calcined paper sludge.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Cleaner Production - Volume 57, 15 October 2013, Pages 302-307
Journal: Journal of Cleaner Production - Volume 57, 15 October 2013, Pages 302-307
نویسندگان
Rozineide A. Antunes Boca Santa, Adriano Michael Bernardin, Humberto Gracher Riella, Nivaldo Cabral Kuhnen,