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AN EVALUATION OF AGGREGATE AND CHIP SEAL SURFACED ROADS AT MN/ROAD.
| 题名： | AN EVALUATION OF AGGREGATE AND CHIP SEAL SURFACED ROADS AT MN/ROAD. |
| 作者： | Lukanen-EO |
| 关键词： | AGGREGATE-GRADATION; CHIP-SEALS; LOW-VOLUME-ROADS; PAVEMENT-PERFORMANCE; RIDING-QUALITY-PAVEMENTS; RUTTING-; TEST-FACILITIES; WEARING-COURSE-PAVEMENTS |
| 摘要： | A pavement testing facility, the Minnesota Road Research Project (Mn/ROAD) contains a two-lane Low Volume Road (LVR) loop with dedicated traffic supplied by a five-axle tractor semi-trailer truck that has maximum legal gross weight of 356 kN (80,000 lb) when it travels in the clockwise direction and an overloaded 456 kN (102,500 lb) in the counterclockwise direction. The LVR contains four 152.4 m (166 yd) sections with a 305 mm (12 in.) aggregate structure, two of which are surfaced with a double chip seal. These four sections include three main experimental variables: vehicle loads, graduations of aggregate, and surface types. This study involved monitoring the performance of these four sections from June 1994 to May 1995. Study conclusions include the following: (1) Aggregate gradations are not reliable predictors of performance as an aggregate wear; (2) A simplified test is needed to evaluate aggregate wearing materials; and (3) The performance of chip seals with respect to ride and rutting was better than the aggregate surfaced sections constructed with the same aggregate. |
| 总页数： | 1997/01. 9401-9612 pp90 (66 Fig., 4 Tab., 16 Ref.) |
| 报告类型： | 科技报告 |
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