Water-permeable concrete pad and form

Abstract

A concrete pad with drainage holes is created using an in-situ form with a plurality of spaced, vertically aligned conduits having upper ends with removable caps and spacers connecting the conduits. The form is horizontally positioned at the area where the pad is to be created and concrete is poured into the form until the upper surface of the concrete is in a plane with the upper ends of the conduits. After the concrete has cured, the caps are removed to permit water to flow from the top of the pad through the conduits for drainage into the soil beneath the pad.

1 . A concrete form for use in producing a concrete pad with a plurality of spaced drainage holes comprising: 
 a) a plurality of spaced, vertically aligned conduits having upper ends;    b) spacers connecting said conduits; and    c) removable caps covering said conduit upper ends.    
   
   
       2 . The form of  claim 1 , wherein said pad has a given thickness and said conduits have a length substantially equal to said given thickness.  
   
   
       3 . The form of  claim 1 , wherein said conduits and spacers are integrally molded from a thermoplastic polymer.  
   
   
       4 . The form of  claim 1 , wherein said form is of a rectangular shape with side and end walls.  
   
   
       5 . The form of  claim 1 , wherein said caps include pull tabs.  
   
   
       6 . The form of  claim 1 , further including reinforcing rod attachments.  
   
   
       7 . A concrete pad with a plurality of spaced drainage holes comprising: 
 a) a form with a plurality of spaced, vertically aligned conduits having upper ends and spacers connecting said conduits; and    b) concrete filling said form, said concrete having an upper surface in a plane with the upper ends of said conduits, whereby water can enter the upper ends of said conduit and drain through said pad.    
   
   
       8 . The concrete pad of  claim 7 , wherein said pad has a given thickness and said conduits have a length substantially equal to said given thickness.  
   
   
       9 . The concrete pad of  claim 7 , wherein said conduits have a circular cross-section.  
   
   
       10 . The pad of  claim 7 , wherein said conduits are arrayed in a rectangular pattern.  
   
   
       11 . The pad of  claim 7 , wherein said spacers are vertically oriented with opposed ends, each of said ends being attached to a conduit.  
   
   
       12 . The pad of  claim 7 , wherein said conduits and spacers are integrally molded from a thermoplastic polymer.  
   
   
       13 . The pad of  claim 7 , wherein said form is of a rectangular shape with side and end walls.  
   
   
       14 . The form of  claim 7 , further including reinforcing rod attachments.  
   
   
       15 . A method of forming a concrete pad having drainage holes comprising: 
 a) providing a form with a plurality of spaced, vertically aligned conduits having upper ends with removable caps and spacers connecting said conduits;    b) horizontally positioning the form at the area where the pad is to be formed;    c) filling said form with concrete until the upper surface of the concrete is in a plane with the upper ends of said conduits; and    d) removing the caps from said conduit upper ends, whereby water can drain through said conduits.    
   
   
       16 . The method of  claim 15 , wherein said conduits have a circular cross-section.  
   
   
       17 . The method of  claim 15 , wherein said conduits are arrayed in a rectangular pattern.  
   
   
       18 . The method of  claim 15 , wherein said spacers are vertically oriented rectangular spacers with opposed ends, each of said ends being attached to a conduit.  
   
   
       19 . The method of  claim 15 , wherein said conduits and spacers are integrally molded from a thermoplastic polymer.  
   
   
       20 . The method of  claim 15 , further including the step of attaching rebar to said form prior to pouring said concrete.