详情

Moisture and Frost Susceptibility of Emulsion-Treated Base with Full-Depth Reclamation of Asphalt Pavements

项目名称：	Moisture and Frost Susceptibility of Emulsion-Treated Base with Full-Depth Reclamation of Asphalt Pavements
摘要：	It is anticipated that several projects will be constructed in Utah in the near future utilizing full-depth reclamation of asphalt pavements in conjunction with emulsion treatment of base materials. Although a variety of laboratory tests are typically performed by consultants during the design phase of individual projects, specific evaluations of resistance to freeze-thaw damage and frost heave have not been performed. Furthermore, formal evaluations of spatial and temporal variability in the mechanical properties of the in situ materials have not been conducted. With the growing use of this product, research is needed to assess its durability and measure its properties in the field to verify the assumptions inherent in the current design process. The research objectives to be accomplished with this study include: 1. Evaluate the moisture and frost susceptibility of emulsion-treated base materials. 2. Evaluate the in situ properties of emulsion-treated base materials. 3. Determine appropriate input values and protocols for pavement design, including structural and drainage coefficients and short-term durability expectations. The major tasks to accomplish the research objectives include: 1. Conduct a comprehensive literature review and a national survey to investigate the state of the practice concerning full-depth reclamation in conjunction with emulsion treatment, compile results of published laboratory and field tests, and identify construction issues associated with the process. 2. Select particular projects of interest and arrange for material sampling and field testing. Obtain samples of both neat and field-mixed materials for laboratory evaluation. 3. Perform structural testing of the treated base layers at each site immediately following construction and after specified time intervals. 4. Perform laboratory freeze-thaw and frost heave testing of treated specimens prepared from the sampled materials. 5. Analyze all data and prepare a complete research report documenting all procedures, findings, and recommendations. Results of the study will be used by design and construction personnel at the Utah Department of Transportation on related projects.
状态：	Active
资金：	75000.00
资助组织：	Utah Department of Transportation
项目负责人：	Stevens, David
执行机构：	Brigham Young University
开始时间：	20090601
实际结束时间：	20130531
主题领域：	Highways；Pavements；I30: Materials