کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
258009 503605 2014 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Experimental characterization of high-performance fiber-reinforced cold mix asphalt mixtures
ترجمه فارسی عنوان
خصوصیات تجربی مخلوط های آسفالتی سرد مخلوط سرد با مقاومت بالا فیبر تقویت شده
کلمات کلیدی
آسفالت مخلوط سرد مخلوط تقویت شده فیبر، زمان بهبودی، سازگاری، حساسیت آب
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی عمران و سازه
چکیده انگلیسی


• Cold mix asphalt (CMA) mixture performance generally increase with curing time.
• The proper type and content of fibers can improve CMA performance.
• The research provides the validation of a laboratory approach for the performance study of CMA mixtures.

Maintenance of existing road pavements assumes increasing interest as the traffic growing produces a faster deterioration of road infrastructures compromising safety and pavement serviceability. In order to guarantee long-lasting pavement repairs, maintenance activities and products must be optimized in terms of both achieved performance and curing times to reach a proper pavement serviceability. This research project focuses on the experimental characterization of a high-performance cold mix asphalt mixture reinforced with three types of fibers (cellulose, glass–cellulose, nylon–polyester–cellulose) dosed at two different contents (0.15% and 0.30% by the aggregate weight). Such materials were investigated at different curing times (1, 7, 14, 28 days) and conditions (dry and wet). Laboratory tests (Marshall, Indirect Tensile, Abrasion and Compactability) usually employed for hot mix asphalts were considered, adjusting the testing procedures taking into account the specific characteristics of cold mixes. Results showed that the mix with 0.15% cellulose fibers provides similar (for curing times of 14 and 28 days) or even higher performance (for curing times within 7 days) than the standard mixture (without fibers). Finally, the last two mixtures were compared with two cold mix asphalt mixes available on the market. The cellulose-fiber-reinforced material and the standard one showed enhanced performance, allowing the conclusion that they can be more successfully used in maintenance activities.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Construction and Building Materials - Volume 57, 30 April 2014, Pages 117–125
نویسندگان
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