Reusable concrete form

Abstract

Disclosed is a reusable, lightweight and rigid concrete forming tube made from fiberglass, injection molded plastic or similar material providing a surface with little tendency to adhere to the concrete. This makes it easy to remove the components and to reuse them without excessive cleaning required before the next use. Components are constructed with interlocking tabs so that assembly can be accomplished by merely inserting one male tab into a female opening in the corresponding tab in a slip fit relationship. Concrete or a similar material is poured into the top of the assembled tube. Upon hardening of the concrete, the tube is removed, leaving a formed concrete column of the desired cross sectional shape and length. After use the components are disassembled for use elsewhere.

1 . A form adapted for use in molding columns, footings, piers and the like made of concrete or similar materials into columns of any desired cross sectional shape and length including two interlocking sections secured together by a plurality of self aligning tabs and optionally by two bolts or pieces of rebar. 
     
     
         2 . The concrete column form of  claim 1  wherein each section is comprised of a semi-cylindrical wall having a top edge with a handle centrally located on each, a bottom edge and opposite side edges with molded interlocking tabs. 
     
     
         3 . The concrete column form of  claim 1  wherein the body of such form has sufficient rigidity to support a column of concrete mix poured therein. 
     
     
         4 . The concrete column form of  claim 1  wherein adhesion of the mold walls to the cured concrete is prevented through the use of fiberglass, injection molded plastic or a similar material having similar properties preventing such adhesion. 
     
     
         5 . The concrete column form of  claim 1  wherein each of the two said sections is formed in a unitary construction.