Environment-friendly preparation experimental platform and experimental method of rubber powder modified asphalt

Abstract

The invention discloses an environment-friendly preparation experimental platform for rubber powder modified asphalt. The platform comprises a controller, an oil bath for storing the asphalt, a reaction kettle, a temperature rise kettle, a mother liquor tank, and a packing auger for conveying rubber powder into the reaction kettle. Pipelines are arranged among the oil bath, the reaction kettle, the temperature rise kettle and the mother liquor tank respectively for material interaction. The platform further comprises a tail gas treatment mechanism. Multi-tank type design is adopted, pumps and the pipelines are used for interaction between the tanks, and implementation efficiency and experiment safety are effectively guaranteed. The stirring speed and reaction temperature are combined for small-amount multi-time rubber powder doping, the doping rate can be effectively increased, meanwhile, generated tail gas is synchronously combusted in real time, the environment is prevented from being affected by the tail gas, combustible components in the tail gas are effectively utilized, and combustion efficiency is improved.

Description

technical field [0001] The invention relates to the technical field of rubber powder modified asphalt, in particular to an environment-friendly preparation experimental platform and experimental method of 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 o...

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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.

Moreover, the preparation of rubber asphalt will produce a large amount of exhaust gas, causing environmental pollution, while the conventional exhaust gas treatment method is expensive, which will lead to the experimenters secretly exhausting exhaust gas driven by profit, causing adverse effects

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