کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
292714 511043 2016 10 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
An empirical method for estimating surface area of aggregates in hot mix asphalt
ترجمه فارسی عنوان
روش تجربی برای برآورد منطقه سطح سنگدانه ها در آسفالت مخلوط گرم
کلمات کلیدی
مساحت سطح سازه؛ خواص فیزیکی سنگدانه؛ آسفالت مخلوط داغ؛ ضخامت فیلم
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی هوافضا
چکیده انگلیسی

Bitumen requirement in hot mix asphalt (HMA) is directly dependent on the surface area of the aggregates in the mix, which in turn has effect on the asphalt film thickness and the flow characteristics. The surface area of aggregate blend in HMA is calculated using the specific surface area factors assigned to percentage passing through some specific standard sieve sizes and the imaging techniques. The first process is less capital intensive, but purely manual and labour intensive and prone to human errors. Imaging techniques though eliminating the human errors, still have limited use due to capital intensiveness and requirement of well-established laboratories with qualified technicians. Most of the developing countries like India are shortage of well-equipped laboratories and qualified technicians. To overcome these difficulties, the present mathematical model has been developed to estimate the surface area of aggregate blend of HMA from physical properties of aggregates evaluated using simple laboratory equipment. This model has been validated compared with the existing established methods of calculations and can be used as one of the tools in different developing and under developed countries for proper design of HMA.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Traffic and Transportation Engineering (English Edition) - Volume 3, Issue 2, April 2016, Pages 127–136
نویسندگان
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