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المؤلفYounis A.
المؤلفEbead U.
تاريخ الإتاحة2020-02-24T08:57:13Z
تاريخ النشر2018
اسم المنشورMATEC Web of Conferences
المصدرScopus
الرقم المعياري الدولي للكتاب2261236X
معرّف المصادر الموحدhttp://dx.doi.org/10.1051/matecconf/201819909003
معرّف المصادر الموحدhttp://hdl.handle.net/10576/12998
الملخصFabric-reinforced cementitous matrix (FRCM) composites are usually applied on the concrete surface for the purpose of strengthening reinforced concrete structures. However, the efficiency of FRCM strengthening is notably affected by the bond between the FRCM system and concrete substrate. In view of that, the current paper presents the results of a preliminary experimental study carried out to investigate the bond characteristics between FRCM composites and concrete. Six number of specimens, each consisted of a 150-mm concrete cube with a double-shear connection to an FRCM system, were subjected to direct-shear loading test. The parameters investigated include (a) FRCM material (carbon, polyparaphenylene benzobisoxazole (PBO), and glass); and (b) Bond length (75 mm or 100 mm). The FRCM systems typically included a single layer of fabric with the associated mortar, and the bond width was uniformly taken as 100 mm. The test results revealed that the bond capacity is enhanced with an increase in the FRCM bonded length. The PBO-FRCM showed the highest bond capacity between FRCM composite and concrete substrate among the three systems. The modes of failure observed in carbon-, PBO-, and glass-FRCM bond tests are fabric delamination, FRCM mortar/concrete debonding, and fabric rapture, respectively. The PBOand glass-FRCM bond tests thus exhibited a more brittle behavior at failure than that of the carbon-FRCM counterpart.
راعي المشروعThis paper was made possible by grant # QUST-CENG-SPR-14/15-16 from Qatar University. The findings achieved herein are solely the responsibility of the authors.
اللغةen
الناشرEDP Sciences
الموضوعFRCM systems
العنوانA study on the bond behavior of different FRCM systems
النوعConference Paper
رقم المجلد199
dc.accessType Abstract Only


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