کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10155582 | 1666352 | 2018 | 9 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Influence of various metakaolin raw materials on the water and fire resistance of geopolymers prepared in phosphoric acid
ترجمه فارسی عنوان
تأثیر مواد مختلف متاکائولین بر مقاومت به آب و مقاومت ژئوپلیمرهای تهیه شده در اسید فسفریک
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
سرامیک و کامپوزیت
چکیده انگلیسی
Different formulations of geopolymers were synthesized in acidic media (phosphoric acid) starting from three different raw metakaolin materials to identify compositions of interest. Four different property groups were highlighted based on the most favorable thermal and water resistance properties (while maintaining acceptable mechanical properties). The groups were related to the chemical composition, setting time and setting temperature of the synthesized geopolymers. Indeed, mechanical strength was determined by chemical composition, such as the aluminum content and the amount of water in each sample. The results showed that the sample with Si/Alâ¯â¥â¯1 and Al/Pâ¯=â¯1 exhibited compressive stress to rupture values ranging between 66 and 120â¯MPa and was thermal resistant. Water resistance with a mechanical strength of 50â¯MPa was obtained for the samples with Al/Pâ¯=â¯1 or 4 and Si/Alâ¯â¤â¯1. This work highlights the possibility of selecting a specific property associated with the mechanical performance for an acidic geopolymer.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Non-Crystalline Solids - Volume 500, 15 November 2018, Pages 493-501
Journal: Journal of Non-Crystalline Solids - Volume 500, 15 November 2018, Pages 493-501
نویسندگان
Hélène Celerier, Jenny Jouin, Nicolas Tessier-Doyen, Sylvie Rossignol,