Preparing experiment platform and method for modifying asphalt through rubber powder

Abstract

The invention discloses a preparing experiment platform for modifying asphalt through rubber powder. The preparing experiment platform comprises a controller, an oil tank used for storing the asphalt, a reaction kettle, a temperature rise kettle, a mother liquor tank, and a packing auger used for conveying the rubber powder into the reaction kettle. Pipelines are arranged between the oil tank and the reaction kettle, between the reaction kettle and the temperature rise kettle, and between the temperature rise kettle and the mother liquor tank to carry out material exchanging. Multi-tank type design is adopted, pumps and the pipelines are utilized for interaction among all the tanks, and realizing efficiency and experiment safety are effectively ensured; the temperature rise tank is utilized for directly preserving reaction temperature of the asphalt to be proper, the temperature rise process in the reaction kettle is reduced, experiment reaction time is shortened, the reaction kettle and the mother liquor tank cooperate for use, the rubber powder doping ratio can be increased, and especially when experiments are carried out, the small amount of rubber powder can be doped many times according to the stirring speed and the reaction temperature.

Description

technical field [0001] The invention relates to the technical field of rubber powder modified asphalt, in particular to an experimental platform and a test method for preparing rubber powder modified asphalt. Background technique [0002] Rubber powder modified asphalt is a new road pavement material made from base asphalt and waste tire rubber powder. It is suitable for laying various grades of highway pavement, which comprehensively improves the low-temperature elongation, crack resistance, wear resistance, heat aging resistance and oil resistance stability of the pavement, and can reduce driving noise and improve driving comfort and safety. The large temperature range provides flexibility and fatigue resistance for the asphalt pavement, thereby prolonging the service life of the pavement. At the same time, resources are recycled and environmental protection is promoted. [0003] In actual production, because the quality of different batches of rubber powder is different...

AI Technical Summary

Problems solved by technology

[0003] In actual production, because the quality of different batches of rubber powder is different, it is necessary to do small-dose experiments before production to obtain the best modulation ratio. The current experiments are completely based on experience, and the best production process cannot be obtained online. The final data deviation is large. When such experimental results are applied to actual production, it will inevitably lead to waste of production materials and discounts in quality. How to improve the effectiveness and reliability of the experiment has become an urgent problem to be solved.

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