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原文传递 Geocomposite Capillary Barrier Drain for Limiting Moisture Changes in Pavements: Product Application.

题名：	Geocomposite Capillary Barrier Drain for Limiting Moisture Changes in Pavements: Product Application.
作者：	Stormont-J.; Pease-R.E.; Henry-K.; Barna-L.; Solano-D.
关键词：	Composite-pavements; Moisture-; Drainage-; Concrete-pavements.;Composite-materials; Design-calculations; Moisture-content; Barriers-; Drains-; Geotextiles-; Infiltration-; Lateral-drainage; Geotechnical-engineering; Transport-properties; Road-drainage.
摘要：	The overall purpose of this project is to facilitate the transfer of the GCBD technology to engineering practice through demonstration and documentation of GCBD fabrication, field installation and performance, and the development of the capability to incorporate the GCBD in subsequent designs. The project is organized into three stages. Each successive stage is built upon the product of the previous stage. The first stage involves selecting materials for the GCBD field test, developing a method to terminate the GCBD in an edgedrain trench, and provide specifications and details for field installation. The second stage involves construction and installation of the field test at MnDOTs test facility, including installing numerous measurement systems to quantify the GCBD performance. A parallel effort of this project is to contact geosynthetics and other manufacturers to advise them of the possibility of licensing this technology for commercial applications. The third phase of the project is to develop design guidance for the use of the GCBD. The transport layer is the key element of the GCBD, and a material referred to as TGLASS was selected as the best available transport layer material. This material was used in the MnROAD field test. There has been discussion with a geosynthetic manufacturer regarding the production of a lower cost transport layer. A method to connect the GCBD to the edgedrain pipe system was developed in the laboratory and used in the MnROAD demonstration. Details and specifications regarding the field installation of the GCBD system were developed and implemented at MnROAD. Construction of the field test took place between June 19, 2006 and August 16, 2006.
报告类型：	科技报告