کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8870277 | 1622615 | 2018 | 14 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Irradiated recycled plastic as a concrete additive for improved chemo-mechanical properties and lower carbon footprint
ترجمه فارسی عنوان
پلاستیک بازیافت شده تجدید شده به عنوان یک افزودنی بتن برای بهبود خواص شیمیایی و مکانیکی و رد پای کربن پایین
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کلمات کلیدی
پلاستیک تجدید شده افزودنی ها، رب سیمان، ریز ساختار، ساختار پوسته،
موضوعات مرتبط
مهندسی و علوم پایه
علوم زمین و سیارات
مهندسی ژئوتکنیک و زمین شناسی مهندسی
چکیده انگلیسی
Concrete production contributes heavily to greenhouse gas emissions, thus a need exists for the development of durable and sustainable concrete with a lower carbon footprint. This can be achieved when cement is partially replaced with another material, such as waste plastic, though normally with a tradeoff in compressive strength. This study discusses progress toward a high/medium strength concrete with a dense, cementitious matrix that contains an irradiated plastic additive, recovering the compressive strength while displacing concrete with waste materials to reduce greenhouse gas generation. Compressive strength tests showed that the addition of high dose (100Â kGy) irradiated plastic in multiple concretes resulted in increased compressive strength as compared to samples containing regular, non-irradiated plastic. This suggests that irradiating plastic at a high dose is a viable potential solution for regaining some of the strength that is lost when plastic is added to cement paste. X-ray Diffraction (XRD), Backscattered Electron Microscopy (BSE), and X-ray microtomography explain the mechanisms for strength retention when using irradiated plastic as a filler for cement paste. By partially replacing Portland cement with a recycled waste plastic, this design may have a potential to contribute to reduced carbon emissions when scaled to the level of mass concrete production.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Waste Management - Volume 71, January 2018, Pages 426-439
Journal: Waste Management - Volume 71, January 2018, Pages 426-439
نویسندگان
Carolyn E. Schaefer, Kunal Kupwade-Patil, Michael Ortega, Carmen Soriano, Oral Büyüköztürk, Anne E. White, Michael P. Short,