Steady-State Creep of Asphalt Concrete
Source abstract
Abstract
This paper reports the experimental investigation of the steady-state creep process for fine-grained asphalt concrete at a temperature of 20 ± 2 °С and under stress from 0.055 to 0.311 MPa under direct tension and was found to occur at a constant rate. The experimental results also determined the start, the end point, and the duration of the steady-state creep process. The dependence of these factors, in addition to the steady-state creep rate and viscosity of the asphalt concrete on stress is satisfactorily described by a power function. Furthermore, it showed that stress has a great impact on the specific characteristics of asphalt concrete: stress variation by one order causes their variation by 3–4.5 orders. The described relations are formulated for the steady-state of asphalt concrete in a complex stressed condition. The dependence is determined between stress intensity and strain rate intensity.
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Research context
OpenAlex topics: Asphalt Pavement Performance Evaluation · Concrete and Cement Materials Research · Concrete Properties and Behavior
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Department of Mechanics, Al-Farabi Kazakh National University, Almaty 050040, Kazakhstan
Kazakhstan Highway Research Institute, Almaty 050061, Kazakhstan
Department of Chemistry and Chemical Technologies, University of Calabria, Rende 87036, Italy
References (26)
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