The invention relates to an asphalt pavement crack filling device comprising a bottom plate, a tank body, a polishing device and a solar cell panel; a stirring device is arranged inside the tank body;a gas filter device is arranged on the outer wall of the top of the tank body; a gas stove is arranged in a gap between the bottom surface of the tank body and the top surface of the bottom plate; the gas stove is fixed on the upper surface of the bottom plate through bolts, and the gas stove communicates with a gas tank through a pipeline; the lower surface of the bottom plate just facing to thegas stove is provided with two heat dissipation fans symmetrically; the polishing device consists of a lifting plate, a jack, a lifter and a polisher. Impurities in the gap are brushed to remove by the polishing device, and the impurities in the gap are blown away from the gap by starting a blast blower; asphalt raw materials in the tank body are stirred by the stirring device to facilitate rapidtransfer of heat and accelerate the melting speed of the asphalt raw materials; after the gap is filled, the two heat dissipation fans are used for blasting and cooling asphalt so as to facilitate rapid cooling of the asphalt.

Asphalt pavement crack filling device

The invention discloses a construction method and a construction apparatus for a municipal road asphalt concrete pavement The construction apparatus mainly comprises a truck tractor and a laying device connected with the truck tractor, the truck tractor comprises a traction chassis and a cab mounted on the traction chassis, the laying device comprises a front frame, a stirring mechanism, a flattening mechanism and a connecting mechanism, the connecting mechanism is mounted between the front frame and the traction chassis, the stirring mechanism is mounted on at the front side of the upper surface of the front frame, the middle part of the front frame is provided with a material leakage opening, the discharge channel of a stirring tank is located above the material leakage opening, at least two filling mechanisms are mounted in the material leakage opening, and the flattening mechanism is mounted at the rear side of the front frame The method makes laying construction immediately carried out after onsite stirring of asphalt, so small heat loss of the asphalt is ensured, and the pavement quality after the completion of the construction is ensured

Construction method and construction apparatus for municipal road asphalt concrete pavement

A machine (10) and a method for repairing a longitudinal joint between adjoining asphalt road wearing courses, the apparatus comprising a heater array (1, 2, 3, 4) for heating the surfaces of the asphalt wearing courses on both sides of the joint, a mixer (26) for depositing bitumen and heated aggregate onto the heated surfaces and having agitators for mechanically disturbing the heated asphalt over a distance considerably less than the width of the wearing course and extending transversely over the joint and for mixing the heated aggregate, bitumen and asphalt, and a screed (22) for spreading and tamping the mixed heated aggregate, bitumen and asphalt, wherein the heater array, mixer and screed are arranged linearly and mounted to a single machine (10) so as to pass over the wearing course in that order as the machine (10) moves in a forward direction (F).

Apparatus and process for repairing a longitudinal joint

The apparatus comprises: a heater array, 1, 2, 3, 4; a mixer 26 and a screed 22. The heater, mixer and screed are arranged linearly from front to back onto a single movable machine, the front being the motion of the machine moving forwardly F. The heater is for heating asphalt wearing courses on both sides of a joint. The mixer can deposit heated bitumen and has agitators for disturbing the heated asphalt and then mixing the asphalt, bitumen to create a mixture and aggregate. The screed spreads and tamps the mixture on the road surface. Also claimed is a method including the successive steps of: a) heating a surface of asphalt wearing courses; b) spraying heated bitumen onto the surface; c) agitating the asphalt and partially mixing the bitumen; d) adding aggregate onto the disturbed asphalt and bitumen; e) agitating teh asphalt, bitumen and aggregate and mixing them together and f) spreading the tamping the mixture on either side of the surface of the joint.

Mark Richard Jones

Papers

Apparatus and process for repairing a longitudinal joint

Asphalt road repair