کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
6713943 1428733 2018 15 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Assessing concrete strength variability in existing structures based on the results of NDTs
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی عمران و سازه
پیش نمایش صفحه اول مقاله
Assessing concrete strength variability in existing structures based on the results of NDTs
چکیده انگلیسی
One of the main factors affecting the survey of concrete strength in existing structures is the inherent material variability, which can only be fully characterized when destructive tests are performed, especially in older structures. Therefore, having a preliminary estimate of the concrete strength variability facilitates the planning of destructive testing campaigns. In light of this, the proposed study presents the development of general empirical expressions estimating the in situ concrete strength variability using non-destructive test (NDT) results. These expressions are defined by examining the correlation between statistical parameters of datasets of concrete core strength, rebound hammer and ultrasonic pulse velocity test results using several correlation models that are based on common conversion models and on a generalization of the bi-objective approach. Based on these analyses, empirical models that are able to provide a reliable estimate of concrete strength variability using NDT results are proposed.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Construction and Building Materials - Volume 173, 10 June 2018, Pages 786-800
نویسندگان
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