کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
259801 503644 2011 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Mitigating seal coat damage due to superheavy load moves in Texas low volume roads
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی عمران و سازه
پیش نمایش صفحه اول مقاله
Mitigating seal coat damage due to superheavy load moves in Texas low volume roads
چکیده انگلیسی

Over the past few years, the number of Super Heavy Load (SHL) moves on the Texas highways has drastically increased, resulting in severe damage, particularly on low volume roads. One of the major failure modes on these low volume roads is peeling the fresh seal coats that have been employed as a primary maintenance option by the Texas Department of Transportation (TxDOT). In this paper, a mechanistic-empirical (M-E) guideline that incorporates a Microsoft Excel spreadsheet program was developed to aid in the evaluation and characterization of the damage (peel-off) potential of seal coats when subjected to SHL vehicle loading. Field validations were conducted to validate and calibrate the guideline. It was observed that the pavement surface temperature is the most critical factor along with pavement slope in travel direction, combination of aggregate and binder types, and curing period. Additionally, the texture depth that was measured using the sand patch test method was found to play a significant role in characterizing and controlling seal coat damage. Overall, the developed M-E guideline exhibits great promising potential to serve as an aid for evaluating and mitigating seal coat damage due to SHL vehicle loading on low volume roads in Texas.


► Superheavy load moves in Texas cause damage on fresh seal-coated pavements.
► We propose a mechanistic-empirical approach to evaluate seal coat damage potential.
► We characterize the tensile strength of seal coat using fracture properties.
► Pavement surface temperature is the most critical factor to cause the seal coat damage.
► We develop and verify a spreadsheet program based on field calibration.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Construction and Building Materials - Volume 25, Issue 8, August 2011, Pages 3236–3244
نویسندگان
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