FEASIBILITY STUDY OF ON-SITE FABRICATED BEACH MATTING.
Abstract
The on-site fabrication of beach matting using plastic resins and other lightweight materials was investigated. It was assumed that rapid curing materials could be sprayed or poured over sand, resulting in a surfacing of sufficient strength to allow the passage of heavy vehicles. Materials were sought which had desirable characteristics such as rapid curing under wide temperature and moisture conditions, low cost, low toxicity, high strength-to-weight ratio, easy application, and extended storage life. Fortythree materials were evaluated. Materials which did not cure within a prescribed 3-hour limit were eliminated from further structural testing. Twenty materials were subjected to small-scale structural testing. Of these materials, three polyester resins, one epoxy resing, and one polyurethane foam exhibited the highest strength characteristics. Static wheel-load tests of 10,000 pounds and 70 psi tire pressure, simulating the heaviest Marine wheeled vehicle to travel on matting, were performed on 3 by 5 foot specimens and the following results were obtained: (a) all polyester specimens reinforced with 17 to 35 percent chopped fiberglass withstood the 10,000 pound wheel load. (b) epoxy specimens reinforced with 19 to 32 percent chopped fiberglass withstood the 10,000 pound wheel load. (c) one polyurethane foam specimen with an 18 pound per cubic foot density and an average thickness of 1 inch failed at a 3700 pound wheel loading.
Document Details
- Document Type
- Technical Report
- Publication Date
- Nov 01, 1965
- Accession Number
- AD0623952
Entities
Organizations
- Boeing Rotorcraft Systems