کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6716333 | 1428743 | 2018 | 11 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Elevated temperature properties of basalt microfibril filled geopolymer composites
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
سایر رشته های مهندسی
مهندسی عمران و سازه
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چکیده انگلیسی
The present work deals with elevated temperature properties of basalt microfibril filled geo-polymer composites when exposed to 200, 400 and 800â¯Â°C. The basalt microfibrils were obtained after 30â¯min dry pulverization of basalt fibrous wastes. Further, the microfibrils were added into geopolymer synthesized from calcined kaolin and shale clay residues under 5, 10 and 15â¯wt% loading. The prepared composites were evaluated for physical properties, microstructural analysis and compression strength before and after exposure to elevated temperatures. The compression strength of basalt microfibril filled geopolymers was found higher than the neat geopolymer due to their increased thermal resistance and dense microstructures. The geopolymer composite of 10â¯wt% basalt microfibrils maintained the residual compressive strengths of 23.13 and 16.08â¯MPa at 400â¯Â°C and 800â¯Â°C, respectively and thus recording a minimum strength loss of 32 and 43%, respectively.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Construction and Building Materials - Volume 163, 28 February 2018, Pages 850-860
Journal: Construction and Building Materials - Volume 163, 28 February 2018, Pages 850-860
نویسندگان
Promoda Behera, Vijay Baheti, Jiri Militky, Petr Louda,