Asphalt Mixture With The Construction Than The Cad System And Optimization Analysis

Asphalt mix design is a key tache in the construction of roads. The traditional method is trail calculation by hand. The speed is slowly and it is easily to make mistakes. In this thesis, a new accuracy method is brought forward. With the predicting models of asphalt dosage put forward by the thesis, the new method can adjust the mixing proportion quickly and it can make optimization design using many schemes. According to the actual demand a CAD system for asphalt mix design is developed by this thesis. Combining with the engineering examples; we have the conclusions as follows.1. Using the method developed by the thesis, it becomes into realization to adjust the mixing proportion quickly and make optimization design.2. Using the predicting models of asphalt proportion put forward by this thesis, it can compare the different gradation schemes and it is better to reduce the construction cost.3. According to die mathematical models developed by the thesis, the ratio of bitumen to stone can be gained accurately, and human error can be avoided.4. Using the software system developed by the thesis, it can make asphalt mix design and predicts asphalt dosage and does cost analysis quickly and accurately.5. Optimization design will improve the quality of mixture greatly. At the same time, the strength, durability, comfortability and safety of asphalt pavement can be improved greatly, and the cost of road maintenance can be reduced evidently. Also the road life will be prolonged and the distinguished social benefits can be gained.