کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
6716839 1428745 2018 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Blending efficiency evaluation of plant asphalt mixtures using fluorescence microscopy
ترجمه فارسی عنوان
ارزیابی کارایی مخلوط کردن مخلوط آسفالت گیاه با استفاده از میکروسکوپ فلورسانس
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی عمران و سازه
چکیده انگلیسی
With the use of high percentage recycled asphalt pavement (RAP), there is an increasing concern over how much of the aged binder in RAP that can be blended into virgin binder. In this study, a laboratory procedure was proposed based on fluorescence microscopy for quantifying the mobilization rate of aged binder in plant-produced RAP mixtures. This procedure was derived from the mean gray value of an asphalt-coated aggregate particle. A linear blending chart was developed and used to relate aged binder content to the mean gray value of binder blend. The mobilization rate of aged binder was calculated on the basis of surface area proportion of aggregates with different size. Three types of asphalt mixtures, including one warm mix with foaming technology, two hot mixes with or without rejuvenator, were used to validate the proposed method. Results indicated that the mobilization rate varied by aggregate type (virgin or RAP). Compared with hot mix, warm mix with foaming technology showed a slightly higher mobilization rate.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Construction and Building Materials - Volume 161, 10 February 2018, Pages 461-467
نویسندگان
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