کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5436784 1509651 2017 52 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Tension stiffening approach for interface characterization in recycled aggregate concrete
ترجمه فارسی عنوان
روشی برای رفع تنش برای مشخصه ی رابط در بتن جمع آوری شده بازیافتی
کلمات کلیدی
بتن های جمع آوری شده بازیافت شده، سخت شدن تنشی، بتن با مقاومت بالا، پیوند فولادی بتن، انتشار کراک،
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی صنعتی و تولید
چکیده انگلیسی
This study proposes a comprehensive analysis on the structural performance of reinforced Recycled Aggregate Concrete members. Particularly, it summarizes the results of an experimental investigation aimed at analyzing the tension stiffening behavior of normal and high strength class concretes produced with Recycled Concrete Aggregates (RCAs). The mixtures were proportioned in order to achieve 25 and 65 MPa of compressive strength and, moreover, several recycled-to-natural coarse aggregates replacement ratios were considered: 0%, 25% and 50%. The results derived from this type of test furnish a comprehensive analysis on both the steel-to-matrix interaction and the crack formation and propagation on concrete elements as well as distributed cracking mechanisms. Using a finite difference numerical model, the experimental results are used to back-calculate and identify the steel-to-concrete bond slip law. Also, it is an alternative mean of developing the stress-crack-width law for concrete in tension. The results showed that the use of recycled concrete aggregate does not affect the resulting concrete performance and, therefore, the RCAs can be successfully employed, up to the levels analyzed herein, for the production of structural elements made with normal and high strength class concrete mix.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Cement and Concrete Composites - Volume 82, September 2017, Pages 176-189
نویسندگان
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