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TYPE II UNBOUND COHESIVE SUBGRADE SOIL SYNTHETIC REFERENCE SAMPLE PROGRAM.
| 题名： | TYPE II UNBOUND COHESIVE SUBGRADE SOIL SYNTHETIC REFERENCE SAMPLE PROGRAM. |
| 作者： | Steele-GW; Antle-CE; Anderson-DA |
| 关键词： | STRATEGIC-HIGHWAY-RESEARCH-PROGRAM; LONG-TERM-PAVEMENT-PERFORMANCE; LABORATORY-TESTS; TEST-PROCEDURES; MODULUS-OF-RESILIENCE; SUBBASE-MATERIALS; SOILS-; UNBOUND-PAVEMENT-COURSES; GRANULAR-BASE; SYNTHETICS-; SPECIMENS-; TESTING- |
| 摘要： | Strategic Highway Research Program (SHRP) Protocol 46, "Resilient Modulus of Unbound Granular Base/Subbase Materials and Subgrade Soils", was the specified procedure for laboratories performing resilient modulus test on research samples of unbound cohesive subgrade soil obtained from Long-Term Pavement Performance (LTPP) field sites. P46 requires a test system that includes a triaxial pressure cell component, a closed loop electro-hydraulic repeated load component, and certain load and specimen response control, measurement, and recording components. Two elements of P46 testing were particularly important: verification that the system was calibrated and yielding reasonable results and a practical means of performing quality checks on a daily or more frequent basis. A set of three synthetic reference samples was acquired, instructions for testing were prepared, and the set was circulated to 14 LTPP laboratories for testing. Worksheets, supporting data, analyses, final comments, and conclusions are presented. |
| 总页数： | 1994/08. pp26 (6 Fig., 7 Tab., 3 App.) |
| 报告类型： | 科技报告 |
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