An apparatus for backfilling a trench and, more particularly, an apparatus for laying a pipeline bed layer in a trench and for laying a pipeline bedding layer once a pipeline is laid in the trench. The apparatus comprises a multi-deck screen vibrating unit. The upper deck screen comprises finger tines or a grizzly arrangement.

Provided is a microtrench fill comprising cement, a polymer, and a colorant. Also provided is a method of using the microtrench fill to fill a microtrench in a roadway.

A ditch blade assembly includes a frame coupling opposing blades oriented in a V-shape. The blades are configured to scrape the ground or surface matter to distribute that matter into a singular channel and/or smooth the surface of the ground. A roller is included to compact the loose dirt exiting the gap between the blades. One or more weights are included to increase the down pressure on the blades. The blade angle may be adjusted with both a manual and hydraulic operating assembly.

Hydro excavation vacuum apparatus that process spoil material onboard the apparatus by separating water from the cut earthen material are disclosed.

The present invention relates to an apparatus for laying a pipe in a trench, the apparatus comprising a placement assembly (2) for placing the pipe in the trench; a compactor mechanism (3) for compacting of the aggregate about the pipe.

Hydro excavation vacuum apparatus that process spoil material onboard the apparatus by separating water from the cut earthen material are disclosed.

A machine lays a bituminous carpet for closing microtrenches. The machine includes a truck having a drive system, which defines a footprint area on a surface whereon the truck can move, and a preparing device for preparing bitumen for laying. The preparing device includes a bitumen container having an inlet into which bitumen in introduced, an outlet through which the bitumen prepared for laying exits, a heating system for raising the temperature of the bitumen introduced into the preparing device. A laying device receives the bitumen prepared for laying and lays the bitumen in carpet form. The laying device includes a forming element for shaping and laying bitumen as a carpet over a laying area; a drain channel, between the outlet of the preparing device and the forming element, conducting bitumen towards the forming element. The preparing device includes a mixing device mixing the bitumen while preparing it for laying.

A mobile digging and backfill system for removing and collecting material above a buried utility. The system comprises a mobile chassis, a collection tank mounted to the chassis, a water pump mounted to the chassis for delivering a pressurized liquid flow against the material for loosening the material at a location, a vacuum pump connected to the collection tank so that an air stream created by the vacuum pump draws the material and the fluid from the location into the collection tank, and at least one backfill reservoir mounted to the chassis for carrying backfill for placement at the location.

An applicator for a cement-based mixture includes an open container hopper having a first end disposed above a second end along a first direction. The open container hopper elongated along a second direction. The second end of the open container hopper is configured as an outlet for the cement-based mixture. A handle is coupled to one side of the open container hopper. A hose connector is coupled to another side of the open container hopper. The hose connector is configured to allow the cement-based mixture to flow into the open container hopper. A frame having a pair of wheels supports the open container hopper such that the second end is positionable above a trench for backfilling. A height adjustor is coupled between the frame and the open container hopper. The height adjustor is configured to selectively adjust a height of the second end along the first direction.

A mobile digging and backfill system for removing and collecting material above a buried utility. The system comprises a mobile chassis, a collection tank mounted to the chassis, a water pump mounted to the chassis for delivering a pressurized liquid flow against the material for loosening the material at a location, a vacuum pump connected to the collection tank so that an air stream created by the vacuum pump draws the material and the fluid from the location into the collection tank, and at least one backfill reservoir mounted to the chassis for carrying backfill for placement at the location.