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An apparatus for cleaning contaminants from a construction mat is described including a washing chamber and an automated conveyor assembly translating the construction mat into and out of the washing chamber. The washing chamber includes a plurality of elongated tines adapted to scrape debris from t

An apparatus for cleaning contaminants from a construction mat is described including a washing chamber and an automated conveyor assembly translating the construction mat into and out of the washing chamber. The washing chamber includes a plurality of elongated tines adapted to scrape debris from the was mat and a spray system direction cleansing liquid under pressure at the mat, and a closed loop water reclamation system for filtering and recycling cleansing liquid for reusing the spray system.

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1. An apparatus for cleaning contaminants from a construction mat comprising: an outside shell defining a washing chamber with an entrance and an exit;an automated conveyor assembly for translating the construction mat through the entrance and out the exit of the washing chamber;a plurality of elong

1. An apparatus for cleaning contaminants from a construction mat comprising: an outside shell defining a washing chamber with an entrance and an exit;an automated conveyor assembly for translating the construction mat through the entrance and out the exit of the washing chamber;a plurality of elongated horizontally extending rigid tines vertically spaced apart from one another procreate the entrance and adapted to engage and scrape opposed major side surfaces of the construction mat;a first hydraulically operated door assembly connected to the washing chamber at an entrance opening, wherein the first hydraulically operated door assembly comprises a first pair of hydraulic non-planar doors having rounded end panels that are adapted to cover the entrance opening when closed and to guide the construction mat into the washing chamber when opened, wherein an interior surface of each non-planar door of the first pair comprises a convex-shape that faces the interior surface of an opposing non-planar door of the first pair when closed;a second hydraulically operated door assembly connected to the washing chamber at an exit opening, wherein the second hydraulically operated door assembly comprises a second pair of hydraulic non-planar doors having rounded end panels that are adapted to cover the exit opening when closed and to guide the construction mat away from the washing chamber when opened, wherein an interior surface of each non-planar door of the second pair comprises a convex-shape that faces the interior surface of an opposing non-planar door of the second pair when closed;a liquid spray system in the washing chamber for removing contaminants from the construction mat, the spray system directing cleansing liquid under pressure at the construction mat when the construction mat is traversing the washing chamber on the conveyor assembly, the spray system including: first and second manifolds positioned on opposite sides of the entrance of the washing chamber, the manifolds having a plurality of nozzles forming pressurized streams; anda closed loop liquid reclamation assembly including: a holding tank at a base of the washing chamber for holding a quantity of cleansing liquid;a first high-pressure pump supplying cleansing liquid to the first and second manifolds of the liquid spray system under high pressure; anda second high-pressure pump for moving the sprayed liquid through a filter means in the loop for removing particulate material from the liquid before it is returned to the holding tank. 2. The apparatus of claim 1, further including a pair of brushes rotatable about a vertical axis and mounted on a frame assembly disposed in the washing chamber for scraping additional contaminants from the mat, the frame assembly being mounted to a top wall of the washing chamber. 3. The apparatus of claim 1, wherein the conveyor assembly includes an endless drive belt running through the washing chamber, a pair of guide rails aligned with each side edge of the drive belt to maintain the construction mat in an upright orientation as the mat is moved by the conveyor assembly, and a guard rail mounted on either side of the washing chamber to prevent the construction mat from falling off the drive belt when not inside the washing chamber. 4. The apparatus of claim 1 wherein the washing chamber, conveyor and assembly are vehicle mounted. 5. The apparatus of claim 1, wherein the first pair of hydraulic non-planar doors is hingedly mounted at each side of the entrance opening. 6. The apparatus of claim 1, wherein the second pair of hydraulic non-planar doors is hingedly mounted at each side of the exit opening. 7. The apparatus of claim 1, wherein the automated conveyor assembly acts to carry the construction mat through the washing chamber past the rigid tines as the construction mat is sprayed with cleansing liquid on its opposed major surfaces by the nozzles of the liquid spray system. 8. The apparatus of claim 2, wherein the automated conveyor assembly acts to carry the construction mat through the washing chamber past the rigid tines as the construction mat is sprayed with cleansing liquid on its opposed major surfaces by the nozzles of the liquid spray system, wherein the automated conveyor assembly further acts to carry the construction mat past the nozzles and towards the pair of brushes for scraping contaminants from the construction mat before exiting the washing chamber. 9. An apparatus for cleansing contaminants off of a construction mat comprising: a washing chamber having an entrance and an exit opening and further including a first hydraulically operated door assembly connected to the washing chamber at the entrance opening, wherein the first hydraulically operated door assembly comprises a first pair of hydraulic non-planar doors having rounded end panels that are adapted to cover the entrance opening when closed and to guide the construction mat into the washing chamber when opened, wherein an interior surface of each non-planar door of the first pair comprises a convex-shape that faces the interior surface of an opposing non-planar door of the first pair when closed;an automated conveyor assembly for translating the construction mat into and out of the washing chamber;a second hydraulically operated door assembly connected to the washing chamber at the exit opening, wherein the second hydraulically operated door assembly comprises a second pair of hydraulic non-planar doors having rounded end panels that are adapted to cover the exit opening when closed and to guide the construction mat away from the washing chamber when opened, wherein an interior surface of each non-planar door of the first pair comprises a convex-shape that faces the interior surface of an opposing non-planar door of the second pair when closed;a plurality of elongated, horizontally extending rigid spaced-apart tines vertically oriented proximate the entrance opening adapted to scrape either side of the construction mat upon passage through the entrance opening of the washing chamber;a spray system to wash away contaminants from the construction mat, the spray system directing cleansing liquid in high-pressure streams at the construction mat while the construction mat is inside the washing chamber;a holding tank for holding a quantity of cleansing liquid;a first high-pressure pump for supplying cleansing liquid from the holding tank to the spray system under high pressure;a drainage conduit disposed under the conveyor assembly and inside the washing chamber whereby used cleansing liquid drains from the washing chamber into the drainage conduit;a pump and filtering assembly coupled in line with the drainage conduit for filtering and removing contaminants from the used cleansing liquid and moving the filtered cleansing liquid into the holding tank, the filter and pump forming a closed-loop liquid reclamation system. 10. The apparatus of claim 9, and further including a frame assembly disposed in the washing chamber and affixed to a top wall of the washing chamber and a pair of brushes journaled on the frame and rotatable about axes for removing additional contaminants from opposite side surfaces of the mat after the mat is subjected to the spray system, the pair of brushes being mounted on the frame assembly. 11. The apparatus of claim 10, wherein the first pair of hydraulic non-planar doors includes first and second doors wherein the first door is mounted to a first side of the entrance opening, and a second door is mounted to the second side of the entrance opening, and a hydraulic door activator operatively associated with one of the first and second doors for coordinating reciprocal opening and closing of the first and second doors. 12. The apparatus of claim 9, wherein the conveyor assembly includes an endless drive belt running through the washing chamber, with guide rails lining each side of the drive belt to maintain the construction mat in an upright on-edge orientation as the mat moves with the drive belt, and a guard rail mounted on either side of the washing chamber to prevent the construction mat from falling off the drive belt when not supported by the washing chamber. 13. The apparatus of claim 12, wherein the conveyor assembly further includes a plurality of sprockets keyed to a plurality of rotatable transverse shafts wherein at least one of the sprockets is driven by a power means and the drive belt is deployed around the sprockets. 14. The apparatus of claim 9, wherein the spray system includes first and second manifolds positioned on opposing sides of the entrance to the washing chamber, the manifolds having a plurality of nozzles for forming pressurized streams of cleansing liquid. 15. The apparatus of claim 4 wherein the filter assembly further includes: a conduit for supplying the used cleansing liquid from the second high-pressure pump to the filter assembly; andat least one filter disposed in line with the conduit. 16. The apparatus of claim 9 wherein the washing chamber and conveyor assembly are vehicle mounted. 17. The apparatus of claim 9, wherein the first pair of hydraulic non-planar doors is hingedly mounted at each sides of the entrance opening. 18. The apparatus of claim 9, wherein the second pair of hydraulic non-planar doors is hingedly mounted at each side of the exit opening. 19. The apparatus of claim 9, wherein the automated conveyor assembly acts to carry the construction mat through the washing chamber past the rigid tines as the construction mat is sprayed with cleansing liquid on its opposed major surfaces by the spray system. 20. The apparatus of claim 10, wherein the automated conveyor assembly acts to carry the construction mat through the washing chamber past the rigid tines as the construction mat is sprayed with cleansing liquid on its opposed major surfaces by the spray system, wherein the automated conveyor assembly further acts to carry the construction mat past the spray systems and towards the pair of brushes for scraping contaminants from the construction mat before exiting the washing chamber.