A method of transporting asphalt mixture for expressways

Abstract

The invention discloses a method for transporting asphalt mixture for expressway, which comprises the steps of counting the number of transport vehicles, determining the traveling route, preheating the transport vehicles, spraying lubricant, loading, heat preservation, transportation, cleaning and the like. The number of transport vehicles is determined according to the production capacity, transportation time and consumption of the mixing plant, and additional safety reserve vehicles can avoid paving material breakage. Measures such as preheating of the transport vehicle, spraying lubricant and heat preservation can minimize the probability of segregation of the asphalt mixture, improve the quality of the asphalt mixture, improve the quality of the asphalt pavement, prolong the service life of the pavement and reduce the maintenance cost in the later period effect.

Description

technical field [0001] The invention relates to the technical field of transporting asphalt mixture in highway construction, in particular to a method for transporting asphalt mixture for highways. Background technique [0002] In the 1980s, highways began to be built in China. The structure of the asphalt pavement at that time was Type I asphalt concrete, with a porosity of 3% to 6%, low water permeability, good durability, and a friction coefficient that could meet the requirements. However, its structural depth is small and does not meet the requirements. [0003] The modern type II asphalt concrete has a porosity of 6% to 10%, a deep surface structure, and strong deformation resistance, but its water permeability and durability are poor, so the asphalt concrete surface is still being studied. [0004] And with such a ratio, it has been proved by the practice of many expressways that the multi-gravel asphalt concrete surface can not only provide a deeper surface structur...

AI Technical Summary

Problems solved by technology

[0005] After years of development and continuous deepening of asphalt research, the materials and quality of domestic asphalt pavement construction have made great progress, but compared with developed countries, there is still a gap

The mixing, transportation, paving and rolling equipment used in asphalt pavement construction are internationally accepted, and the quality of asphalt has basically reached the level of developed countries. The main gap lies in the construction technology, especially the aggregate processing technology, processing equipment and The gap in quality control leads to serious segregation of asphalt pavement, many diseases, high maintenance costs and short service life

[0006] During the construction process, the distance between the mixing plant and the paving site is relatively long, and it is necessary to use a truck to transport the asphalt mixture to the paving site. There are many factors affecting the transportation process (including weather, road conditions, temperature, driving speed, etc.) and transportation time, etc.), the asphalt mixture will be segregated, and the quality of the segregated asphalt mixture will decrease, which will lead to a decrease in the quality of the asphalt pavement.

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