原文传递
NONDESTRUCTIVE EVALUATION OF COMPLEX MODULI IN ASPHALT CONCRETE WITH AN ENERGY APPROACH.
| 题名： | NONDESTRUCTIVE EVALUATION OF COMPLEX MODULI IN ASPHALT CONCRETE WITH AN ENERGY APPROACH. |
| 作者： | dos-Reis-HLM; Habboub-AK; Carpenter-SH |
| 关键词： | ASPHALT-CONCRETE; COMPLEX-MODULUS; DISSIPATION-; ENERGY-; ENERGY-DECAY-RATE; ENERGY-STORAGE-CAPACITY; MICROSTRUCTURE-; NONDESTRUCTIVE-TESTS; POISSON-RATIO; SUPERPAVE- |
| 摘要： | A modified version of the impulse-echo method is presented to nondestructively estimate the average Poisson's ratio and the average dynamic complex bulk, shear, extensional, and longitudinal moduli of asphalt concrete specimens made of different mixtures. The estimated moduli represent an average over the volume of the specimens and over the frequency band of 10 to 50 kHz. By using principles of statistical energy analyses, the proposed methodology is based on the energy-density decay function of a diffuse wave field. The methodology allows evaluation of the energy dissipation characteristics of different asphalt concrete mixtures and their dependence on material microstructure. As a consequence, energy-density decay functions may be used to search for an optimum asphalt concrete microstructure. In this study, it was observed that the typical Superpave mixture generally exhibits higher average dynamic energy storage capacity and higher energy decay rates (i.e., loss moduli). |
| 总页数： | Transportation Research Record. 1999. (1681) pp170-178 (10 Fig., 4 Tab., 39 Ref.) |
| 报告类型： | 科技报告 |
相关文献
- Evaluation and Response of Aged Flexible Airfield Pavements at Ambient Temperatures Using the Falling Weight Deflectometer
- DISCRETE ELEMENT MODELING OF ASPHALT CONCRETE: MICROFABRIC APPROACH.
- Quantitative Nondestructive Testing of Railroad Tank Cars Using the Probability of Detection Evaluation Approach.
- Bituminous Paving Mixtures, 2006. Journal of the Transportation Research Board, No. 1970.
- Economy of Preventive Maintenance of Concrete Bridges
- BACKCALCULATION OF PAVEMENT PROFILES FROM SPECTRAL-ANALYSIS-OF-SURFACE-WAVES TEST BY NEURAL NETWORKS USING INDIVIDUAL RECEIVER SPACING APPROACH.
检索历史
应用推荐
