ترجمه مقاله نقش ضروری ارتباطات 6G با چشم انداز صنعت 4.0
- مبلغ: ۸۶,۰۰۰ تومان
ترجمه مقاله پایداری توسعه شهری، تعدیل ساختار صنعتی و کارایی کاربری زمین
- مبلغ: ۹۱,۰۰۰ تومان
Transportation agencies have become increasingly interested in modifying hot mix asphalt (HMA) pavements with recycled asphalt shingles (RAS), yet they share common questions about the effect of RAS on the performance of HMA. In this study, the field and laboratory performance of RAS mixes produced from seven different transportation agencies are investigated as part of Transportation Pooled Fund TPF-5 (213). Field demonstration projects were conducted that evaluated multiple aspects of RAS that include RAS grind size, RAS percentage, RAS source, RAS in combination with warm mix asphalt technology, RAS as a fiber replacement for stone matrix asphalt, and RAS in combination with ground tire rubber. Field mixes from each demonstration project were sampled and tested for their permanent deformation, fatigue cracking, and low temperature cracking performance. Recovered asphalt binder from each mix was also evaluated. Pavement condition surveys were conducted for each project after completion.