Experimental Research On Marshall Of The Mixture Of Steel Slag And Asphalt

Strengthen environmental protection and efficient use of resources is a major theme in the world today. Steel slag as a waste of resources, how to scientifically and effectively use in geotechnical engineering is an important issue.About the mineral composition, physical and chemical properties and its basic mechanical properties of steel slag, many scholars at home and abroad have already conducted a lot of research, at the same time made a great deal of research results. The comprehensive utilization of steel slag has been fully applied to the project construction, and its recovery rate reached abort 100% in the USA, Japan and other developed countries. But in China, the recycling of steel slag is just about half compared with the developed countries. Because the depth and breadth of our research is not enough, the loss of resources is still not small.Investigate the mechanics characteristic of the mixture of steel slag and Asphalt, and provides the theory basis for steel slag on Asphalt mixtrue treatment.By splitting, Marshall stability, immersion Marshall, freezing and thawing split test.Through the test data statistics and analysis,derived data and comparison of asphalt macadam mixture, if the data meet the regulatory requirements (asphalt gravel mixture), that can be used as road material used.Slag can be applied to asphalt mixture, and has broad application prospects. Scientific and effective utilization slag, not only fully conserve resources, preserve natural environment, but also can bring significant economic effect. But this thesis only from the perspective of laboratory tests to study the slag mechanical properties of asphalt mixtures, how to put slag in the practical application still need a lot of field tests and theoretical analysis.Using the steel slag on foundation engineering construction is benefit to our country's resources and environmental construction, and is in line with countries to strengthen environmental protection and efficient use of resources, such as sustainable development strategy.