原文传递
USE OF RUBBER IN ASPHALT PAVEMENTS: KANSAS EXPERIENCE.
| 题名： | USE OF RUBBER IN ASPHALT PAVEMENTS: KANSAS EXPERIENCE. |
| 作者： | Fager-GA |
| 关键词： | ASPHALT-RUBBER; HOT-MIX-ASPHALT; BITUMINOUS-OVERLAYS; REFLECTION-CRACKING; GAP-GRADING; RUTTING-; HOT-RECYCLING; RUBBER- |
| 摘要： | From 1990 to 1992 eight rubber hot bituminous mix projects were constructed on the Kansas Department of Transportation highway system. Four have been dry and four have been of the wet process. Two projects have been administered through normal bid procedures. Six have been constructed through change orders and negotiated prices. Approximately 616 tons of rubber was used in the hot mix overlays. Preliminary conclusions are as follows: (a) From the crack survey results, it is apparent that rubber may not inhibit the development of cracks in the higher-density mixes. However, even though the results are still preliminary, the gap-graded mixes show the greatest potential in reducing the amount of cracking. (b) Rubber in a gap-graded mix will prevent asphalt draining off the aggregates during construction. This will allow a thicker film thickness on the aggregates. (c) None of the rubber projects have rutted, but neither have the asphalt-only control sections. (d) On hot recycle projects, rubber addition rates should be based on the weight of dry virgin aggregate and recycled asphalt pavement. (e) Rubber absorbs a large portion of an RA-100 in a hot recycle mix. An AC-5 with rubber will reduce the asphalt absorption and improve the aggregate coating. |
| 总页数： | Transportation Research Record. 1994. (1436) pp88-97 (3 Fig., 10 Tab., 2 Ref.) |
| 报告类型： | 科技报告 |
相关文献
- Evaluation of Long-Term Pavement Performance and Noise Characteristics of Open-Graded Friction Courses Project 1: Post-Construction and Performance Report.
- Evaluation of Long-Term Pavement Performance and Noise Characteristics of Open-Graded Friction Courses Project 1: Final Report.
- STONE MATRIX ASPHALT: THE WISCONSIN EXPERIENCE.
- ARKANSAS EXPERIENCE WITH CRUMB RUBBER MODIFIED MIXES USING MARSHALL AND STRATEGIC HIGHWAY RESEARCH PROGRAM LEVEL I DESIGN METHODS.
- GEORGIA'S EXPERIENCE WITH CRUMB RUBBER IN HOT-MIX ASPHALT.
- Field Trials of Asphalt Rubber Hot Mix in Virginia; Final rept. 7 Sep 89-31 1994.12
检索历史
应用推荐
