A kind of asphalt pavement pothole repair material and preparation method thereof

Abstract

The invention discloses a repair material for bituminous pavement pot holes and a method for preparing the same, wherein the material is prepared by mixing and stirring the following raw materials according to parts by weight: 100 parts of dry powder, 10-20 parts of emulsified asphalt, 5-10 parts of water and 0.1-0.5 part of water reducer. The method for preparing the material comprises the steps of putting the dry powder, the water reducer and water in a stirring machine and stirring at a speed of 200 r / min for 60 s at first, and then adding the emulsified asphalt thereto and stirring at the speed of 200 r / min for 30 s, and finally, stirring at a speed of 400 r / min for 180 s, thereby obtaining the repair material for the bituminous pavement pot holes. The repair material for bituminous pavement pot holes provided by the invention is convenient for storage and does not need to be heated in use, and further is capable of quickly repairing the damaged bituminous pavement pot holes at different temperatures and under the wet conditions; as a result, the repair material can be selected for repairing when the traffic flow is small, so that the normal traffic capacity of the road cannot be affected.

Description

technical field [0001] The invention belongs to the technical field of materials, and in particular relates to a quick repair material for asphalt pavement potholes and a preparation method thereof. The material is used for quick repair of asphalt pavement potholes, and can also be used for repairing damaged parts of cement concrete pavement and similar pavement materials . Background technique [0002] Asphalt pavement has been widely used in various highways and urban roads because of its advantages such as smooth driving, comfortable driving, low noise, convenient maintenance and recyclable utilization. By the end of 2011, the total mileage of expressways in my country had reached 85,000 kilometers, of which more than 90% were asphalt roads. However, in the process of use, due to the coupling effect of the complex environment and heavy traffic load, the asphalt pavement will have pits and cracks prematurely. If these diseases are not repaired in time, stress will be gene...

AI Technical Summary

Problems solved by technology

[0005] This method of operation has the following disadvantages: 1) Special mixing equipment and transportation equipment are required, and a heating device is required to heat the asphalt mixture during mixing and transportation, which consumes a lot of energy; There is a large temperature difference in the filled asphalt mixture. Therefore, weak joints will be formed at the junction of the old and new asphalt mixture. Over time, when heavy vehicles are rolled over, the separation of the old and new materials will cause cracks again.

3) The construction must be carried out under dry conditions; 4) The cooling rate of the mixture is slow and the operation time is long, which makes it time-consuming to open traffic and cannot be repaired quickly

[0008] Although this method of operation can effectively save construction time, it still has the following disadvantages: 1) The finished material is easy to harden; 2) The asphalt content in the mixture is lower than the optimal content, the amount of mineral powder is large, and the durability of the mixture is insufficient , especially in seasons with high humidity, the service life is only 3 months or even shorter; 3) Using high-grade gasoline as a diluent will cause the material to fail due to the volatilization of the diluent and the loss of the workability of the mixture

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