کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4918368 1428761 2017 10 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Accurate detection method for compaction uniformity of asphalt pavement
ترجمه فارسی عنوان
روش تشخیص دقیق برای یکنواختی تراکم آسفالت
کلمات کلیدی
مهندسی جاده، آسفالت پیاده رو یکنواختی تراکم، روش تشخیص، توزیع تراکم، توزیع ناپایدار،
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی عمران و سازه
چکیده انگلیسی
To evaluate the compaction uniformity effectively, firstly, the feasibility of using density and void distribution as compaction uniformity evaluation index was demonstrated by laboratory test. Secondly, relying on the project of Tong-Xun Highway, reasonable detection interval of non-nuclear density gauge PQI was determined, and quantitative evaluation index of density distribution uniformity was also proposed. Next, core samples at representative density point were drilled and of which the voids distribution characteristic on sectional image of core sample was analyzed by image processing technology, and further on, the evaluation index of void distribution uniformity was put forward. Finally, the accurate detection method of compaction uniformity based on density and void distribution was exampled relying on entitative engineering. The results show that it is feasible to evaluate the compaction uniformity of asphalt pavement with its density and void distribution. The reasonable lateral detection interval of PQI is 1.5 m, and the reasonable longitudinal detection space is 50 m. Density statistical index such as Sr, SR, k and h can reflect the density distribution uniformity on detection section. Voids number uniform coefficient UCN and voids ratio uniform coefficient UCR of core samples can reflect the compaction uniformity of asphalt pavement from the aspect of micro structure.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Construction and Building Materials - Volume 145, 1 August 2017, Pages 88-97
نویسندگان
, , ,