An apparatus for treating a pavement surface with a plurality of layers in a single pass, including: a chassis having a forward end and a rear end; a plurality of rolling means spaced longitudinally along the chassis for supporting the chassis so it can roll along a particular direction of advance; a powerplant for moving the chassis along the direction of advance; a first storage tank mounted on the chassis for containing bituminous sealant; a second storage tank mounted on the chassis for containing bituminous emulsion; a main hopper mounted on the chassis for storing aggregate particles; a first mechanism in flow communication with the first storage tank for applying a layer of bituminous sealant at a predetermined temperature and application rate on the pavement surface; a second mechanism in flow communication with the second storage tank for applying a layer of bituminous emulsion at a predetermined temperature and application rate on the layer of bituminous sealant, wherein a thermal reaction occurs between the bituminous sealant and the bituminous emulsion so as to accelerate a material break and cure time for the layers; and, a third mechanism in flow communication with the main hopper for providing a layer of aggregate particles at a predetermined application rate on the layers of bituminous sealant and bituminous emulsion during the thermal reaction.
CROSS-REFERENCE TO RELATED APPLICATION
The present application is a continuation-in-part of an application entitled "Method Of Treating A Pavement Surface And Apparatus For Performing Such Method," filed on Jul. 14, 2000 and having Ser. No. 09/616,704 now U.S. Pat. No. 6,444,258.
A paving convoy for producing a bituminous cover layer including a self-propelled road paver and a paving material feeding assembly which is self-propelled and travels in front of the road paver. A paving material conveying device extends from the feeding assembly to the road paver. A spraying module including its own undercarriage and components for storing and deploying bitumen emulsion is provided between the feeding assembly and the road paver. The spraying module has a spraying bar facing the front end of the road paver. The spraying module is either coupled to the feeder assembly by a detachable towing connection or to the road paver by detachable pulling connection.
