Abstract
The aim of this paper is to study the hydrated lime to the high temperature characters, resist ability of aging, together with workability. Different contents of hydrated lime in asphalt mastic were tested with Dynamic Shear Rheological and Viscosity Tests. The results illustrated that hydrated lime was an appropriate addition agent which can improve asphalt mastic properties greatly, however, too much hydrated lime may result in the decrease of asphalt mixture performances.
Highlights
The CPC Central Committee and the State Council Issue the Program of Building National Strength in Transportation recently
This paper concentrates on the performances of asphalt mastic at high temperature, and the optimum hydrated lime content was proposed in terms of some tests
This paper quotes the criterion of rutting factor to study the influences of short-term aging, and the temperature of G*/sinθ=2.2kPa was regarded as the critical temperature of that type of asphalt mastics
Summary
The CPC Central Committee and the State Council Issue the Program of Building National Strength in Transportation recently. The effect of the filler is based on a volumetric filler effect or an interactive role between the filler and the bitumen due to the fineness and surface characteristics of the filler. The latter effect is related to physico-chemical aspects that explain the specific interfacial interaction of bitumen-filler systems. Since hydrated lime is often used to improve moisture resistance in asphalt mixtures, it has been demonstrated to be efficient and interactive filler. This paper concentrates on the performances of asphalt mastic at high temperature, and the optimum hydrated lime content was proposed in terms of some tests
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