原文传递
Evaluation of Simple Performance Tests on HMA Mixtures from the South Central United States. Research rept. Jan 02-Apr 03.
| 题名： | Evaluation of Simple Performance Tests on HMA Mixtures from the South Central United States. Research rept. Jan 02-Apr 03. |
| 作者： | bhasin, a. button, j. w. chowdhury, a. |
| 关键词： | *Asphalts-; *Hot-mix-paving-mixtures.;Performance-tests; Evaluation-; Dynamic-modulus; Flow-time; Flow-number; South-central-region-United-States. |
| 摘要： | A wide variety of hot mix asphalt (HMA) materials and mixture designs were obtained from the six states in the south central region of the United States. Three additional mixtures were designed and produced in the laboratory to provide modified mixtures in this project. All mixtures were characterized using the three simple performance tests (dynamic modulus, flow number, and flow time), Superpave shear test - frequency sweep at constant height (SST-FSCH), and the Asphalt Pavement Analyzer (APA) as a torture test. The Hamburg wheel-tracking device (HWTD) was also conducted on selected mixtures. Objectives included the following: evaluate applicability of current test procedures and equipment for measuring HMA mixture properties with particular emphasis on complex modulus; provide state departments of transportation in the south central United States familiarity with the proposed E* parameter; generate information on performance of selected HMA mixtures with the new tests; extend the application of the protocols to gap-graded (e.g., stone mastic asphalt or Texas department of transportation coarse matrix high binder) mixtures; compare results from E* test results with other established tests (e.g., SST-FSCH, APA); evaluate specially designed HMA mixtures which may exhibit low dynamic modulus but high recovery of strains (i.e., HMA containing a highly polymer modified soft asphalt, e.g., PG 64-40). A limited study was conducted to characterize the cracking potential of the selected mixtures using parameters from the indirect creep test in addition to the dynamic modulus test parameters. |
| 报告类型： | 科技报告 |
相关文献
- Transit Safety and Security Statistics and Analysis Annual Report, 2002.
- Development and Implementation of a Highway Construction Quality Assurance Program for the Connecticut Department of Transportation. Phase I. HMA (Hot-Mix Asphalt) Concrete Construction.
- Visibility Performance Requirements and Testing Procedures for Pedestrian Signal Heads.
- Louisiana Traffic Sign Inventory and Management System.
- Evaluation of Wildlife Crossing Structures and Fencing on U.S. Highway 93 Evaro to Polson. Phase I. Preconstruction Data Collection and Finalization of Evaluation Plan.
- Motor Vehicle Occupant Safety Survey, 2003. Volume 2: Safety Belt Report.
检索历史
应用推荐
