详情

原文传递 Monitoring and Modeling of Pavement Response and Performance. Task A: Ohio. Technical rept.

题名：	Monitoring and Modeling of Pavement Response and Performance. Task A: Ohio. Technical rept.
作者：	Sargand-S.; Figueroa-J.L.
关键词：	*Pavements-.;Performance-evaluations; Pavement-responses; Pavement-performances; Ohio-; Implementation-plans; Graphs-Charts; Tables-Data; Figures-; Monitoring-; Distress-surveys.
摘要：	Over the years, the Ohio Department of Transportation has constructed several pavements with a range of designs and materials to study and improve overall statewide performance. These pavements require constant monitoring to determine how they perform over time and what mechanisms are at work to cause distress. One major effort was the DEL-23 Test Road where 40 AC and PCC test sections in the SPS-1, SPS-2, SPS-8 and SPS-9 experiments were constructed for SHRP. While many sections have been replaced, many other sections remain in service. These remaining sections and seven PCC replacement sections need to be evaluated periodically. Perpetual AC pavement and long lasting PCC pavements were constructed on US-30 in Wayne County to compare the performance of these new designs and to reduce maintenance and the associated traffic delays. ATH-33 was a rigid pavement constructed in Nelsonville using blast furnace slag and fly ash as a partial replacement for cement. Sections with these materials were also cured with membrane and wet burlap to observe any differences in performance. ATH-50 was a rigid pavement with ground granulated blast furnace slag added to the concrete. A few stainless steel tube dowel bars filled with concrete and a few fiberglass dowel bars were installed and compared with standard epoxy coated steel dowel bars. LOG-33 was an AC pavement containing six different bases to determine their effect on performance. MEG-33 was a PCC pavement constructed partially on a clay subgrade and partially on a sandy subgrade. Some of the joints in both sections were sealed and some were unsealed to set up a test matrix of joint sealing and subgrade type. Various testing was performed at these sites, but the most common types of testing were FWD and controlled vehicle testing with loaded dump trucks to measure responses to dynamic loading.
报告类型：	科技报告