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ROUND 1 TYPE I UNBOUND GRANULAR BASE COURSE PROFICIENCY SAMPLE PROGRAM.
| 题名： | ROUND 1 TYPE I UNBOUND GRANULAR BASE COURSE PROFICIENCY SAMPLE PROGRAM. |
| 作者： | Steele-GW; Anderson-DA; Antle-CE |
| 关键词： | STRATEGIC-HIGHWAY-RESEARCH-PROGRAM; LONG-TERM-PAVEMENT-PERFORMANCE; LABORATORY-TESTS; TEST-PROCEDURES; MODULUS-OF-RESILIENCE; TESTING-; UNBOUND-PAVEMENT-COURSES; GRANULAR-BASE |
| 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 tests on research samples of unbound granular base course material 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 eight test samples was shipped to each of nine LTPP laboratories with appropriate instructions. All participants were required to complete testing of Type I synthetic reference sample set prior to testing the Round 1 proficiency samples. Worksheets, supporting data, analyses, final comments, and conclusions are presented. |
| 总页数： | 1994/08. pp36 (7 Fig., 11 Tab., 3 App.) |
| 报告类型： | 科技报告 |
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