Abstract:
The first experiments on the totally new process discussed in this paper were conducted in France in 1988. Since then, almost 1,000,000 sq m have been successfully laid. The technique involves in situ creation of a reinforced membrane composed of a layer of elastomer binder onto which continous threads are sprayed immediately after it is laid. The threads interweave to create the reinforcement. This paper describes the process, gives the mix designs used, and introduces the machine that was especially designed to manufacture and lay the reinforced membrane. The results of laboratory tests conducted by one of the laboratories of the French administration and the Belgian Road Transport Research Center are also presented and discussed. These tests show that this process is one of the most efficient processes for preventing reflective cracking. Some examples of its application are mentioned. Its principal advantages over processes using shop-manufactured materials (geotextiles or geogrids) are outlined.
Supplemental Notes:
This paper appears in Transportation Research Record No. 1304, Highway Maintenance Operations and Research 1991. Distribution, posting, or copying of this PDF is strictly prohibited without written permission of the Transportation Research Board of the National Academy of Sciences. Unless otherwise indicated, all materials in this PDF are copyrighted by the National Academy of Sciences. Copyright © National Academy of Sciences. All rights reserved
Subject Areas:
Construction; Design; Highways; Maintenance and Preservation; Pavements; Security and Emergencies; Vehicles and Equipment; I22: Design of Pavements, Railways and Guideways; I23: Properties of Road Surfaces; I52: Construction of Pavements and Surfacings; I61: Equipment and Maintenance Methods
