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GPR Monitoring of the Process of Strengthening the Railway Track Ballast with a Polymer Binder
- Publisher: European Association of Geoscientists & Engineers
- Source: Conference Proceedings, 13th Conference and Exhibition Engineering Geophysics 2017, Apr 2017, Volume 2017, p.1 - 9
Abstract
Summary
The work reports on the GPR technology for determining the thickness of geocomposite formed in the railway track ballast shoulder upon polymerization of two-component polyurethane-based binder «RT-CS-001» introduced into ballast material.
It is shown that when the ballast voids are not filled with the polymer, visible depth of the contrast lower boundary of the ballast layer on a radargram is proportional to the thickness of the geocomposite formed.
Thus, the thickness of geocomposite can be determined by GPR using predetermined refractive indexes of ballast material and geocomposite.
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