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TEMPERATURE CORRECTION OF BACKCALCULATED MODULI AND DEFLECTIONS USING LINEAR VISCOELASTICITY AND TIME-TEMPERATURE SUPERPOSITION.
| 题名： | TEMPERATURE CORRECTION OF BACKCALCULATED MODULI AND DEFLECTIONS USING LINEAR VISCOELASTICITY AND TIME-TEMPERATURE SUPERPOSITION. |
| 作者： | Park-SW; Kim-YR |
| 关键词： | TEMPERATURE-; CORRECTIONS-; BACKCALCULATION-; MODULUS-OF-ELASTICITY; PAVEMENT-DEFLECTION; ASPHALTIC-CONCRETE; LINEAR-VISCOELASTICITY; TIME-TEMPERATURE-SUPERPOSITION-PRINCIPLE; VALIDATION-; FALLING-WEIGHT-DEFLECTOMETERS; TEMPERATURE-MEASUREMENT; THERMOVISCOELASTICITY-; MECHANISTIC-DESIGN; ASPHALT-PAVEMENTS |
| 摘要： | New analytical procedures for temperature correction of backcalculated asphalt concrete moduli and surface deflections were developed based on the theory of linear viscoelasticity and the time-temperature superposition principle and verified using falling weight deflectometer data and field temperature measurements. The new correction procedures explicitly utilize the thermorheological properties of the asphalt mixture. The resulting temperature-modulus correction factors depend only on the relaxation modulus and time-temperature shift factor of the mixture. The temperature-deflection correction factor depends on both the material properties and the layer thicknesses of the pavement section. Emphasis has been placed on the analytical description of the mixture's thermoviscoelasticity responsible for temperature effects on mixture modulus and pavement deflection. A mechanistic framework for dealing with temperature correction problems for asphalt pavement has been introduced. |
| 总页数： | Transportation Research Record. 1997. (1570) pp108-117 (10 Fig., 19 Ref.) |
| 报告类型： | 科技报告 |
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