کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8106769 | 1522178 | 2014 | 10 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Influence of mixed recycled aggregate on the physical - mechanical properties of recycled concrete
ترجمه فارسی عنوان
تأثیر مخلوط بازیافتی مجدد بر خواص فیزیکی و مکانیکی بتن بازیافتی
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کلمات کلیدی
مخلوط بازیافت جامد، ذرات شناور، ویژگی های مکانیکی، جذابیت، برنامه های کاربردی مسکن بتن،
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی انرژی
انرژی های تجدید پذیر، توسعه پایدار و محیط زیست
چکیده انگلیسی
This article discusses the findings of a feasibility study on the partial replacement of natural coarse aggregate with a poor quality recycled aggregate from construction and demolition waste in the manufacture of concrete of 30Â MPa strength grade. The mixed recycled aggregate used had a high asphalt and floating material content. Workability, density, compressive and tensile strength, water absorption and sorptivity were studied in a series of concretes containing 25 or 50% of the recycled aggregate with and without floating materials. The results showed that using up to 50% of the recycled aggregate had no adverse effects on fresh concrete workability. Most of the physical and mechanical properties of hardened concrete (strength, density, sorptivity and water absorption) were observed to decline with rising recycled aggregate replacement ratios and floating particle content. Overall, considering the strength and other properties achieved, the concretes containing the mixed recycled aggregates studied were found to be apt for housing construction. The technical, economic and environmental improvements stemming from the potential replacement of natural coarse aggregate with such recycled construction and demolition waste would contributed to the sustainability of the construction industry.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Cleaner Production - Volume 68, 1 April 2014, Pages 216-225
Journal: Journal of Cleaner Production - Volume 68, 1 April 2014, Pages 216-225
نویسندگان
César Medina, Wenzhong Zhu, Torsten Howind, MarÃa Isabel Sánchez de Rojas, Moisés FrÃas,