The Research On High Modulus Asphalt Mixture Performance Of New Warm Mix Of Renewable

With the development of technology for the road, Researchers are seeking a level of service to meet the high-grade road asphalt mixture design method. Due to the improvement of road traffic load requirements and complicated road traffic, making the design of asphalt pavement has become increasingly complex.Currently, Asphalt mixture design methods commonly used in different countries, including these six species:"cookbook" approach, empirical test, analysis and calculation method, the volume method, performance-related test methods and basic mechanical test methods. The design method of asphalt mixture also depends on the application layer in pavement. For example:For the grassroots, its function is to disperse the load to the soil base, thereby reducing the amount of deformation of the road itself and in the materials used in road layer needs to have a high modulus and fatigue performance; For the surface layer, the direct effect on road traffic loads and atmospheric environment, it should be emphasized durability, resistance to high temperatures, resistance to water damage, deformation resistance and fatigue resistance. Thus, in appropriate layers requires the use of a suitable asphalt mixture design method, while the French high modulus asphalt mixture design method belongs to a basic mechanical test method, the method has been successfully applied in the Algerian East-West Highway, indicating that it with considerable vigor and considerable value.Sustainable development is the theme of the development strategy of the modern era, with the increasing environmental awareness of people and resources recycling, one for the road be warm mix asphalt recycling technology came into being. In this paper, the French high modulus asphalt mixture design method and warm mix of renewable technologies combine by blending the old material, and a large proportion of admixture to achieve the regeneration of warm mix asphalt high modulus quantification purposes, so as to solve the road old material recycling, energy conservation, improve the pavement service life.Based on the French high modulus asphalt mixture design and testing system for the regeneration of high modulus warm mix asphalt mixture performance test analysis, exploratory asphalt mixture by blending the old material, and a large proportion of admixture to achieve the asphalt mix high modulus material quantify. Test analysis carried out include:rotating compaction and water sensitivity analysis, a relatively large amount of deformation of the wheel rut test analysis, dynamic stability test analysis, stiffness modulus test analysis, flexural fatigue test analysis and low temperature test analysis, and the use of accelerated loading tests used to evaluate the regeneration of high modulus warm mix asphalt pavement performance, and finally through the warm mix of high modulus regenerated asphalt in Kunming Luquan overhaul project to analyze the social and economic benefits and environmental benefits.After the analysis of experimental data to determine the optimum blending ratio of the old material was45%, provide theoretical support for practical application projects. Meanwhile, for the domestic status quo, made of high modulus test targets existing domestic vacancy. For example:with high modulus asphalt mixture dynamic stability performance indicators5000times/mm; possess high modulus asphalt mixture performance indicators for the four-point bending fatigue150,000times (10Hz、10℃、300με), To provide a reference for determining the relevant domestic indicators.