کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1455284 989032 2011 12 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Application of a weighted Grey-Taguchi method for optimizing recycled aggregate concrete mixtures
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی صنعتی و تولید
پیش نمایش صفحه اول مقاله
Application of a weighted Grey-Taguchi method for optimizing recycled aggregate concrete mixtures
چکیده انگلیسی

Assessment of the optimal mixture is an important issue to obtain desired quality. This paper integrates grey relational analysis and an objective weighting technique into the Taguchi method to propose the weighted Grey-Taguchi method. This method can be employed to assess the optimal mixture with multiple responses. In the application of this method, water/cement ratio, volume ratio of recycled coarse aggregate, replacement by river sand, content of crushed brick, and cleanliness of aggregate are selected as control factors with responses of slump, slump-flow, resistivity (7-day, 14-day, 28-day), ultrasonic pulse velocity (7-day, 14-day, 28-day), and compressive strength (7-day, 14-day, 28-day) to assess the optimal mixture of recycled aggregate concrete. Results demonstrate and verify that the optimal mixture has a water/cement ratio of 0.5, a volume fraction of recycled coarse aggregate of 42.0%, 100% replacement of river sand, 0% crushed brick, and water-washed aggregates.


► The weighted Grey-Taguchi method is proposed to assess the optimal mixture of recycled aggregate concrete.
► Five control factors and eleven responses are discussed.
► The optimal mixture is 0.5 w/c ratio, 42.0% recycled aggregate, 100% river sand, 0% brick, and clean aggregates.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Cement and Concrete Composites - Volume 33, Issue 10, November 2011, Pages 1038–1049
نویسندگان
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