Application of synchronous gravel sealing technology

[quangongzi]

In this paper, the application of synchronous gravel sealing technology, material selection and environmental requirements were studied and discussed, and the specifications and technical requirements of the main material of crushed stone seal layer and binder were expounded and the popularization and application of the technology The feasibility of road maintenance for our country to provide a new conservation methods.Small Road Roller - Shanghai Doan Machinery Technology Co.,Ltd

With the rapid development of expressway in our country, more and more expressways have been built and the preventive maintenance of asphalt pavement becomes more and more important. The traditional conservation technology and conservation methods can not meet and adapt to the development of highway maintenance work requirements, research, introduction, development of new conservation technology has been essential. As a preventive maintenance measure, the synchronous gravel seal can effectively prevent further spread of pavement disease, delay the aging process of asphalt pavement, prolong the service life of pavement, improve the function of pavement service, and save the maintenance and repair fund. The application prospect is very broad.
Synchronized Crushed Stone Sealing Technology
Synchronous gravel sealing technology from the 20th century, 80 years in France has been large-scale adoption in the 1990s spread to Europe and the United States as a whole, but also in Russia, India, Africa, Australia and other dozens of countries and regions to promote. According to statistics, in Europe more than 95% of the roads are using this technology for conservation. In the United States, synchronous gravel seals have been reported to extend road service life by more than 10 years. Studies in Australia have shown that synchronous gravel sealing technology can increase road life by 10 to 15 years with more severe damage. At present, synchronous gravel sealing technology in China [2] Liaoning, Shaanxi, Anhui, Hunan, Guangxi and other places under the highway seal layer and the national highway, provincial highway construction has been applied, and achieved good economic returns and social benefit. But in general, many of the construction process has not yet fully grasp and the lack of construction experience, also need further study.
Synchronous gravel seal is the use of special equipment that is synchronous gravel seal cars and adhesive materials (modified asphalt or modified asphalt emulsion) spread on the road at the same time, through the road roller or natural rolling to form a single layer of asphalt broken Stone wear layer, which is mainly used as a surface layer of road surface, can also be used for low-grade highway surface layer construction.
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