کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
256853 503563 2015 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Fire endurance of steel reinforced fly ash geopolymer concrete elements
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی عمران و سازه
پیش نمایش صفحه اول مقاله
Fire endurance of steel reinforced fly ash geopolymer concrete elements
چکیده انگلیسی


• Effects of fire on reinforced fly ash geopolymer concrete elements were studied.
• Geopolymer concrete panels had no spalling and less cracks than OPC panels in fire.
• Geopolymer panels retained higher strength than OPC panels after 2 h in fire.
• Over all, reinforced fly ash geopolymer concrete showed superior fire endurance.

As a new alternative to OPC, investigation into the fire endurance of geopolymer concrete is of utmost importance in order to ensure safety. Geopolymer and OPC concrete panels of 125–175 mm thickness containing a layer of steel mesh were exposed to fire for 2 h. Test results show higher heat transfer rate and less cracking and spalling in the geopolymer concrete specimens. The residual load capacity was between 61% and 71% for the geopolymer and between 50% and 53% for the OPC concrete panels. Thus, the reinforced geopolymer concrete elements demonstrated superior fire endurance than the OPC counterparts.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Construction and Building Materials - Volume 90, 15 August 2015, Pages 91–98
نویسندگان
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