Concrete Form Panel

Abstract

A construction form board having a first surface, a second surface and a core layer having a thickness therebetween. The first surface, the second surface and the core layer constructed from a polymer, such as polypropylene. The core layer having a plurality of continuous cavities in a longitudinal direction.

I claim: 
     
         1 . A construction form board comprising:
 a first surface, a second surface and a core layer having a length, a width and a thickness, the first surface, the second surface and the core layer constructed from a polymer, the core layer having a plurality of continuous cavities in a longitudinal direction.   
     
     
         2 . The construction form board of  claim 1 , wherein the polymer is polypropylene. 
     
     
         3 . The construction form board of  claim 1 , wherein the polymer has a bending strength value of equal or greater to 30 MPa. 
     
     
         4 . The construction form board of  claim 1 , wherein the polymer has a bending modulus value of equal or greater to 3000 MPa. 
     
     
         5 . The construction form board of  claim 1 , wherein the polymer has a lateral dimensional shrinkage value of plus/minus 0.2 percent. 
     
     
         6 . The construction form board of  claim 1 , wherein the polymer has a longitudinal dimensional shrinkage value of plus/minus 0.2 percent. 
     
     
         7 . The construction form board of  claim 1 , wherein the width of the core layer is four feet, the length of the core layer is eight feet and the thickness of three-fourths inch. 
     
     
         8 . A construction form system comprising:
 a plurality of construction form boards, each of the plurality of construction form boards a first surface, a second surface and a core layer having a thickness therebetween, the first surface, the second surface and the core layer constructed from a polymer, the core layer having a plurality of continuous cavities in a longitudinal direction,   wherein the plurality of construction form boards are used to create a construction form for use in the construction of a concrete slab.