ROLLED GUSSASPHALT FOR THE REPAIR OF SURFACE RUTS

Since 1972 rolled gussasphalt has been used for the repair of surfacings with ruts. All these surfacings had a good skidding resistance from the beginning and possess a very rough surface texture. This roughness may be reduced by the use of chippings 2/5 as gritting material. It is not possible to say how far the skidding resistance of the surfacing is thus influenced. For the first time in the summer of 1975 a section of gritting material was rolled with a smooth wheel roller only. It was quite easy to see that a small quantity was rolled in. The surface of the surfacing layer is as rough as is the case with the introduction of a combination of rollers. The authors believe that the technique described here is a contribution to the repair of surface deformations, and are of the opinion that this method will find general application in the laying of surfacing layers of qussasphalt. /TRRL/