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This paper investigates the influence of gauge length on the measurement of resilient modulus of bituminous mixtures with modified and unmodified binders tested at 25 °C. From this investigation, it is clear that for the tests carried out using a quarter-gauge length, the cumulative vertical deformations at the end of 200 preconditioning load cycles stays within 0.025 mm as stipulated in ASTM D7369-11...
The measurement of rheological properties of binders is dependent on various factors such as time, temperature as well as on aging. The common causes of erroneous measurements that occur during the rheological tests are related to the sample conditioning and sample loading. Bituminous binders are subjected to steric hardening while stored at room temperatures and thus can cause increased stiffness...
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