Study On The Optimization Of SMA Asphalt Mixture Ratio And Construction Control

SMA (asphalt Mary hoof grease gravel mixture) since the introduction of a largerdevelopment, good durability, skid resistance, high temperature stability and lowtemperature cracking resistance has been a good evaluation. Reasonable selection andapplication of SMA mixture gradation, to ensure that the characteristics of the SMA mixtureskeleton dense structure with excellent road performance is the key to the application of theSMA mixture.This article will use the orthogonal experimental design method to optimize the designof JiCao high-speed asphalt pavement surface. The orthogonal experimental design toovercome the limitations of single factor optimization, mathematical statistics point of viewand the scientific method of orthogonal principle used in the experimental design. Its mainadvantage is that can pick out a lot of test conditions representative of a small number ofpilot programs, this analysis of the results of a small number of pilot programs to infer theoptimal solution, but also can be used for further regression analysis, than is the test resultsitself, given even more about the factors (also known as factor) information.The influence of Asphalt Pavement performance factors is so many, from the origin ofthe asphalt, the label, the amount of mineral aggregate performance, the adhesive forcebetween the asphalt and mineral aggregate gradation mixes as well as transport, climate, thelevel of construction, asphalt and structure combination and so influential. These factorshave different weights of a particular performance, road performance demand is alsoconflicting or mutual restraint. If you take care of a certain kind of performance, it is likelyit will reduce the performance on the other hand. This would be located in the main road tofind a balance between performance, but also for optimization purposes. Guitar the grasshigh speed practical material test, compared to laboratory results and site test results,analysis intrinsically linked, optimized gradation program, to achieve the purpose of theguitar improve grass highway the SMA surface layer road performance.Road pavement design with good performance can not be separated from a scientificand rational construction control and management, the text will be combined with the actual situation and the specifications of the Kyrgyz grass highway, detailed planning and designof the construction process of the SMA pavement.