کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5023587 1470262 2017 11 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Regulating the chemical foaming reaction to control the porosity of geopolymer foams
ترجمه فارسی عنوان
تنظیم واکنش شیمیایی فوم برای کنترل تخلخل فوم ژئوپلیمر
کلمات کلیدی
فوم ژئوپلیمر، فوم شیمیایی، پودر آلومینیوم، انرژی پر شده پایداری،
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی (عمومی)
چکیده انگلیسی
High percentage of aluminium foaming agent is not desirable in geopolymer foams made with aluminium powder. Therefore, the kinetics of aluminium reaction is regulated to increase the porosity of geopolymer foams without increasing the extent of aluminium usage. In geopolymer foams made by Al powder, the geopolymerization reaction and aluminium foaming reaction occur simultaneously. By adjusting the ratio of alkali activators, the high degree of aluminium reaction has been coupled with faster setting of geopolymers, and therefore, the extent of porosity and the pore size distribution has been increased in geopolymer foams without the need to add more Aluminium powder. Aluminium powder has high embodied energy, and this study helps to minimise the negative environmental footprint of geopolymer foams which are aerated by aluminium powder.403
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials & Design - Volume 120, 15 April 2017, Pages 255-265
نویسندگان
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