کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5021833 1469375 2017 10 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Single-lap shear bond tests on Steel Reinforced Geopolymeric Matrix-concrete joints
ترجمه فارسی عنوان
آزمایش پیوند برشی تک لبه بر اتصالات ماتریس بتن ژئوپلیمر فولادی تقویت شده
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی (عمومی)
چکیده انگلیسی
Nowadays Fiber Reinforced Polymers (FRPs) represent a well-established technique for rehabilitation of Reinforced Concrete (RC) and masonry structures. However, the severe degradation of mechanical properties of FRP under high temperature and fire as well as poor sustainability represents major weak points of organic-based systems. The use of eco-friendly inorganic geopolymeric matrices, alternative to the polymeric resins, would be highly desirable to overcome these issues. The present work aims to investigate the bond characteristic of a novel Steel Reinforced Geopolymeric Matrix (SRGM) strengthening system externally bonded to a concrete substrate having low mechanical properties. SRGM composite material consists of stainless steel cords embedded into a fireproof geopolymeric matrix. Single-lap shear tests by varying the bonded length were carried out. The main failure mode observed of SRGM-concrete joints was debonding at the fiber-matrix interface. Test results also suggest the effective bond length. On the basis of the experimental results, a cohesive bond-slip law was proposed.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Composites Part B: Engineering - Volume 110, 1 February 2017, Pages 62-71
نویسندگان
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