详情

Establishing Best Practices for Construction and Design of Cement Treated Materials

项目名称：	Establishing Best Practices for Construction and Design of Cement Treated Materials
摘要：	TxDOT has been constructing pavement structures with cement-treated materials for many years; however, premature failures, such as rutting and cracking, occasionally occur during or shortly after construction. To ensure cement-treated base (CTB) durability and adequate performance over the pavement design life, it is critical to have a better understanding and knowledge of the significance of material mixture designs, construction, and inspection techniques. This project will look at the existing TxDOT guidelines and provide a comprehensive evaluation of how they compare to other published guidelines and recent literature. Particularly, this project will evaluate the potential benefits of new technologies such as inverted pavement structure and super slurry on the properties of the CTB. This evaluation includes developing new rheological testing standards and specifications for evaluating best slurry mixes to maximize performance of the most common TxDOT recycled base material. The project will include an extensive laboratory evaluation of performance and durability of CTB material prepared using traditional on-site and in-plant mixing and compare it to the newly proposed slurry-based mixing. These tests will provide the basis for the new mix design specifications and laboratory testing, along with developing baseline curves for in-situ inspection and evaluating field performance.
状态：	Active
资金：	$404202
资助组织：	Texas Department of Transportation
项目负责人：	Steele PMP, CTCM, Joanne
执行机构：	The University of Texas at El Paso
主要研究人员：	Ashtiani, Reza S.
开始时间：	20170901
预计完成日期：	20200831
实际结束时间：	0