Prescription of fibre modified slurry sealing layer and construction method

Abstract

The invention relates to a material prescription for road maintenance and the construction method thereof, in particular to the prescription and the construction method of a fibre modified slurry seal layer which consists of the following materials (calculated by weight): grade compound of 82.11 parts, modified emulsification bitumen of 9.44 parts, spraying twistless roving of 0.24 parts and water of 8.21 parts. The construction method comprises the steps as follows: firstly, disposing the damage of maintaining road; secondly, choosing a pneumatic cutting machine and a slurry seal layer vehicle which are capable of adding spraying twistless roving measurement; thirdly, mixing the materials, adopting the prescription and the construction method of the fibre modified slurry seal layer disclosed in the invention to improve the anti-tracking performance of the maintenance road by 60 percent, the anti-cutting performance by 35 percent, the bonding performance and the waterproof damage property by 33 percent, the material collecting anti-dispersion performance by 30 percent, the anti low temperature crazing performance by 15 percent and the anti-fatigue performance by 15.6 percent.

Description

technical field [0001] The invention belongs to a material formula and a construction method used in highway maintenance, in particular to a formula and a construction method of a fiber-modified slurry seal layer. Background technique [0002] With the rapid development of my country's highway construction industry, the mileage of roads has increased year by year. To ensure the safety and smoothness of roads is the core issue of road maintenance in the future. , Overruns are intensified, accelerating the occurrence of road diseases, and the early damage of the road surface is becoming more and more serious. Strengthening preventive maintenance of the road surface is an effective way to prevent early damage to the road surface and prolong the service life of the road surface. In the 1990s, my country introduced advanced foreign pavement maintenance technology and equipment on a large scale, vigorously promoted the slurry seal layer, and received good results, improving the pav...

AI Technical Summary

Problems solved by technology

In the 1990s, my country introduced advanced foreign pavement maintenance technology and equipment on a large scale, vigorously promoted the slurry seal layer, and received good results, improving the pavement use condition and extending the service life of the pavement. Influenced by factors such as overrun, overspeed, channelized traffic flow, water damage, etc., coupled with the inconsistency of the original condition of the road, the foundation strength varies, the traffic flow varies, and the temperature and climate vary widely, making The early damage of the pavement has not been effectively controlled, and the use of ordinary slurry seal layer can no longer guarantee the effective extension of the service life of the pavement and improve the quality of pavement maintenance

Images