期刊
JOURNAL OF TRANSPORTATION ENGINEERING PART B-PAVEMENTS
卷 146, 期 4, 页码 -出版社
ASCE-AMER SOC CIVIL ENGINEERS
DOI: 10.1061/JPEODX.0000226
关键词
Perpetual pavement; Design; Constructability; Field performance; Rutting; Fatigue; Roughness; Life cycle cost analysis (LCCA)
资金
- TxDOT
- FHWA
Since the perpetual pavement (PP) concept was introduced, many countries and states, including Texas, have constructed PP roadways. To date, 10 PP sections in Texas have been in service since 2003. With the oldest section having a 15-year service life, there is an opportunity to review the existing design practice and field performance for enhancing the design procedures for cost-effectiveness. From reviewing comprehensive PP practices, the Texas PP design requires the thickest asphalt layers [533.4 mm (21 in:)], but other PP sections using thinner layers have comparably shown good field performance. To date, all Texas PP sections are in good condition with no major structural rehabilitations. Thus, the current Texas PP design procedure needs enhancement for cost-effectiveness. In this study, cost-effective PP design alternatives were proposed to improve design optimization, material quality, and constructability. The structural and economic validations indicated that the design alternatives analytically meet expected performance limits, which last for the 50-year design life without significant structural failures, with a total agency cost saving of up to 19% compared with the current design procedure. (C) 2020 American Society of Civil Engineers.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据