کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8955732 | 1646105 | 2018 | 12 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Considerations on sound absorption coefficient of sustainable concrete with different waste replacements
ترجمه فارسی عنوان
ملاحظات در مورد ضریب جذب صدا از بتن پایدار با جایگزینی زباله های مختلف
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کلمات کلیدی
بتن پایدار، مخازن زباله، ضریب آکوستیک، موانع سر و صدا،
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی انرژی
انرژی های تجدید پذیر، توسعه پایدار و محیط زیست
چکیده انگلیسی
In the context of an urban environment assaulted by noise from different sources, the possibility of using composite materials made of concrete and various materials considered as waste was investigated, for the purpose of using them in acoustic barriers. Five different types of sustainable concrete have been developed, incorporating polystyrene granules, polyethylene terephthalate granules, corn cob granules, shredded sunflower stalk and balls made of sheep wool. Two different thicknesses were adopted, of 40â¯mm and 80â¯mm. The influence of the material's thickness was investigated. For these materials, the acoustic absorption coefficient was determined, using Feng's modified procedure of the ISO 10534:1998 standard. The sound absorption coefficient's meaning suffers changes and its measured value can be considered the real one, smaller than the usual reported standard values. Each of the sustainable concrete has sound absorption coefficients higher than those of the conventional concrete. The results highlighted that these types of materials represent a sustainable solution for both waste and noise problems of our cities.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Cleaner Production - Volume 203, 1 December 2018, Pages 301-312
Journal: Journal of Cleaner Production - Volume 203, 1 December 2018, Pages 301-312
نویسندگان
Irina Oancea, Carmen Bujoreanu, Mihai Budescu, Marcelin Benchea, CÄtÄlina Mihaela GrÄdinaru,