کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4918292 1428756 2017 12 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Development of cost effective ultra-high-performance fiber-reinforced concrete using single and hybrid steel fibers
ترجمه فارسی عنوان
توسعه بتن مسلح با مقاومت بالا و با کارایی بالا با استفاده از الیاف فولادی تک و ترکیبی
کلمات کلیدی
بتن مسلح فشرده فوق العاده بالا، عملکرد انعطاف پذیر، هیبریداسیون فیبر، فیبر فولاد، تجزیه و تحلیل هزینه،
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی عمران و سازه
چکیده انگلیسی
This study investigates the flexural behavior of ultra-high-performance fiber-reinforced concrete (UHPFRC) with single and hybrid steel fibers. To do this, three different types of steel fibers, i.e., hooked, twisted, and straight fibers, were considered, and a UHPFRC commercially available in North America was used as a comparison. To suggest a low-cost UHPFRC exhibiting the best flexural performance, test data and cost of fibers were analyzed based on a literature review. Test results indicate that straight steel fibers provide the best flexural performance, including strength, deflection capacity, energy absorption capacity, and cracking behavior, compared with hooked and twisted fibers, especially when many fibers (2% by volume) were incorporated. Hybrid reinforcement (hooked + straight fibers) efficiently improved the flexural performance of the UHPFRC with single hooked fibers, but the twisted + straight fibers were less effective than the UHPFRC with single twisted fibers. The optimum UHPFRCs contained 2 vol% single straight steel fibers (lf/df of 19.5/0.2) or hybrid 0.5 vol% long (lf/df of 30/0.3) and 1.5 vol% medium-length (lf/df of 19.5/0.2) straight steel fibers; they showed better flexural strength and cost effectiveness than other types of UHPFRCs.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Construction and Building Materials - Volume 150, 30 September 2017, Pages 383-394
نویسندگان
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