Application of Ground-Penetrating Radar to Highway-Related Problems |
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Status | |
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Sequential Number | R2 |
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Identification Number | R-5-38002 |
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Matching Research Agency | Missouri Department of Transportation (MoDOT) |
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Principal Investigator | Neil Anderson, Professor
Geology & Geophysics
University of Missouri-Rolla
Rolla, MO 65409 | | p | 573-341-4852 | | f | 573-341-6935 | | nanders@mst.edu |
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Student Involvement | None |
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Project Objective | Non-invasion study of pavement. |
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Project Abstract | Current geotechnical procedures for monitoring the condition of roadways is time consuming and can be disruptive to traffic, often requiring extensive invasion procedures (e.g., coring). Ground penetrating radar GPR technology offers methodology to perform detailed condition assessment of existing roadways, with the added advantage over other techniques of being rapid and cost-effective. This study applies GPR techniques to a survey along Interstate 70 across the state of Missouri. Goals of this survey were threefold: 1) determine layer thicknesses every tenth mile (primarily asphalt and concrete, with base coarse information secondary; 2) update history information related to types of pavements that makeup I-70 across Missouri and 3) note regions where the radar signal appears anomalous. Goals (1) and (2) are related and were the primary goals. Goal (3) required visually interpreting the full data set and was done as a guide for further investigation. |
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Task Description | Task 1: I-70 (using horn antennas; two sets, 190 miles X 2) from Wentzville to Blue Springs. One pass in extreme right hand lane in both directions. Information regarding pavement thickness, base sub-base, moisture, and anomalies. Bonded concrete in rough shape; un-bonded pavement. Task 2: Joplin project (using horn antennas; two sets, 50 miles X 2). Possibly some follow-up work with 400 MHz antennas. Pavement faulted at every joint. Task 3: 31 LTPP (long term pavement performance test sites). |
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Anticipated Benefits | Better understanding of utility of geophysical technique. |
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Modal Orientation | N/A |
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Milestones | | Project Start Date: | 07/01/1998 | | Project End Date: | 06/30/1999 |
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Relationship to other Research/Projects | Consistent with other MoDOT projects. |
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Technology Transfer Activities | Will supply report to MoDOT, publish papers. |
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Transportation Research Board Keywords | Pavement faulted and bonded concrete |
