Abstract: A modified chip spreader is adapted to be used in a chip sealing train including a chip supply dump truck and an asphalt composition supply truck. The modified chip spreader is a self-propelled vehicle that has a receiving hopper on its front end for receiving stone chips from the chip supply dump truck, a spreader assembly on its rear end and a conveyor assembly for conveying the stone chips from the receiving hopper to the spreader assembly. The modified chip spreader also includes a spray assembly that is in fluid communication with an outlet line from the asphalt composition supply truck, which spray assembly is adapted to dispense an asphalt composition onto the surface of a roadway in front of the spreader assembly. The spreader assembly dispenses the stone chips onto the newly applied asphalt composition on the surface of the roadway.

Abstract: A CIR train includes a milling machine, an asphalt cement supply tank, a mechanism for dispensing asphalt cement onto paving material that has been removed from the roadway by the milling machine, an asphalt cement pump for pumping asphalt cement from the asphalt cement supply tank into and through an asphalt cement flow circuit to the asphalt cement dispensing mechanism. A heating assembly is interposed in the asphalt cement flow circuit between the asphalt cement supply tank and the dispensing mechanism. The heating assembly includes a heater and a heat modifying component. The heater includes an asphalt cement coil that is in the asphalt cement flow circuit, and a burner that is adapted to direct hot gases of combustion across the asphalt cement coil. The heat modifying component is adapted to modulate the amount of heat transfer from the hot gases of combustion to the asphalt cement in the coil.

Abstract: A CIR train includes a milling machine, an asphalt cement supply tank, a mechanism for dispensing asphalt cement onto paving material that has been removed from the roadway by the milling machine, an asphalt cement pump for pumping asphalt cement from the asphalt cement supply tank into and through an asphalt cement flow circuit to the asphalt cement dispensing mechanism. A heating assembly is interposed in the asphalt cement flow circuit between the asphalt cement supply tank and the dispensing mechanism. The heating assembly includes a heater and a heat modifying component. The heater includes an asphalt cement coil that is in the asphalt cement flow circuit, and a burner that is adapted to direct hot gases of combustion across the asphalt cement coil. The heat modifying component is adapted to modulate the amount of heat transfer from the hot gases of combustion to the asphalt cement in the coil.

Abstract: A modified chip spreader is adapted to be used in a chip sealing train including a chip supply dump truck and an asphalt composition supply truck. The modified chip spreader is a self-propelled vehicle that has a receiving hopper on its front end for receiving stone chips from the chip supply dump truck, a spreader assembly on its rear end and a conveyor assembly for conveying the stone chips from the receiving hopper to the spreader assembly. The modified chip spreader also includes a spray assembly that is in fluid communication with an outlet line from the asphalt composition supply truck, which spray assembly is adapted to dispense an asphalt composition onto the surface of a roadway in front of the spreader assembly. The spreader assembly dispenses the stone chips onto the newly applied asphalt composition on the surface of the roadway.

Abstract: A chip sealing train for use in carrying out a chip sealing operation on a roadway using foamed asphalt cement includes a chip supply dump truck, an asphalt cement supply truck and a chip spreader. The chip spreader includes a receiving hopper for receiving stone chips from the raised dump bed of the chip supply dump truck and a spreader assembly which is adapted to dispense the stone chips onto the roadway. The chip sealing train includes a water tank and a foam dispersal assembly. The foam dispersal assembly includes a foaming chamber, an asphalt cement supply line that is in fluid communication with the asphalt cement supply truck and the foaming chamber, and an asphalt cement pump for pumping asphalt cement from the asphalt cement supply tank into the foaming chamber. The foam dispersal assembly also includes a water supply line that is in fluid communication with the water tank and the foaming chamber, and a water pump for pumping water from the water tank into the foaming chamber.