Techniques for Overlaying Deteriorated Landing Mat. Bare Base Support
Abstract
Two mat overlay test sections were constructed and subjected to simulated aircraft traffic. Both test sections consisted of a compacted soil and AM2 mat overlay on rough deteriorated M6 mat. In the first test section, four types of soil cushions were evaluated: a thin sand layer, a 4-in.-thick sand layer, a 4-in.-thick clay gravel layer, and a 4-in.-thick, membrane-covered lean clay layer. The test section was subjected to simulated F-4C traffic. Best performance was obtained with the lean clay cushion. he second test section had a 4-in.-thick lean clay soil cushion surfaced with new AM2 over deteriorated M6. The test section had a 2-1/2 percent crown, and eight different placement configurations were used to determine the optimum pattern for placing 2- by 12- ft mat on a crowned subgrade. The test section was subjected to simulated F-4C and C-130 test traffic.
Document Details
- Document Type
- Technical Report
- Publication Date
- Sep 01, 1970
- Accession Number
- AD0756197
Entities
People
- Cecil D. Burns
- William N. Brabston