کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
258287 503615 2013 11 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
A durability study of externally bonded FRP-concrete beams via full-field infrared thermography (IRT) and quasi-static shear test
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی عمران و سازه
پیش نمایش صفحه اول مقاله
A durability study of externally bonded FRP-concrete beams via full-field infrared thermography (IRT) and quasi-static shear test
چکیده انگلیسی

Durability of 36nos. externally-bonded CFRP-concrete beams was studied by monitoring the intermediate cracking (IC) processes using infrared thermography (IRT) and quasi-static direct shear test. Specimens were exposed to three elevated water temperatures (25 °C, 40 °C and 60 °C) for 5, 15 and 30 weeks. In addition to the measurement of the properties at ultimate state, this work attempts to characterize the intermediate states of the intact, softened and ruptured part during the IC debonding process. The results show that the adhesive bond layers of the 40 °C and 60 °C specimens were ruptured and softened at a force level much lower than that for the 25 °C and control specimens. This is explained by the exposure condition that the water temperature exceeded the heat distortion temperature of the adhesive layer, which accelerated the bond deterioration of the composites.


► Durability of 36nos. externally-bonded CFRP-concrete beams was studied by monitoring the intermediate cracking (IC) processes using quantitative infrared thermography (QIRT) and quasi-static direct shear test.
► Specimens were exposed to three elevated water temperatures (25 °C, 40 °C and 60 °C) for 5, 15 and 30 weeks.
► In addition to the measurement of the properties at ultimate state, this work attempts to characterize the intermediate states of the intact, softened and ruptured part during the IC debonding process.
► The results show that the adhesive bond layers of the 40 °C and 60 °C specimens were ruptured and softened at a force level much lower than that for the 25 °C and control specimens.
► This is explained by the fact that the exposure water temperature exceeded the heat distortion temperature of the adhesive layer, which accelerated the bond deterioration of the composites.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Construction and Building Materials - Volume 40, March 2013, Pages 481–491
نویسندگان
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