D�ckkonfiguration och nedbrytning av v�gar
| 项目名称： | D�ckkonfiguration och nedbrytning av v�gar |
| 摘要： | VTI's HVS machine will be used to measure stress (response) in pavements from different tire types to quantify their degradation effect. The measurements can then be used with transfer functions (fatigue and rutting) for predicting the degradation rate of the different types of tire. The project can be broken down into the following stages: 1. An instrumented pavement will be built in VTI's site. (In the current situation there is a structure at the site linked to another project. It could be part of this project. Another alternative structure could then be built and tested); 2. Purchase of different types of tires and rims (for example parhjulsd�ck 280 / 80R22.5 and 295 / 80R22.5 Super Single tires 385 / 65R22.5, 425 / 65R22.5, 445 / 50R22.5 and 455 / 55R22.5); 3. Response measurements (vertical stress and strain and tensile strain in the lower edge of the asphalt, ytdeflektion) in the construction done in HVS equipment. In the tests applied some different load levels (40, 50, 60 and 80 kN) and pressure (500, 600, 800, 900 and 1000 kPa) to get the broad understanding of how the different tire types / configurations affect stress (response measurements); 4. Amendment of the water table and repeat the measurements in paragraph 3; 5. Analysis of data compilation; 6. The transfer functions (fatigue criterion and rutting) is a prediction of how different types of tires affects pavement life; 7. Reporting. Increased knowledge about different types of tire impact on the degradation of roads. Direct measurements of stresses in road construction from different tire types / configurations. The measurements can then be used with transfer functions (fatigue and rutting) for predicting the degradation rate of the different types of tire. |
| 资金： | 0.00 |
| 资助组织： | Trafikverket, Sweden |
| 项目负责人： | Erlingsson, Sigurdur |
| 执行机构： | Statens v�g- och transportforskningsinstitut (VTI) |
| 开始时间： | 20160401 |
| 预计完成日期： | 20181231 |
| 实际结束时间： | 0 |
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