Patent ID: 6345472
Filing Date: 2002-02-12
Classification: B28B,E04G,Y10T

Abstract:
A method of creating void space in concrete material, including the steps of:(a) providing concrete material; (b) providing a form for casting said concrete material; (c) providing a removable, reusable insert member, said insert member is attachable to machinery capable of providing a continuous supply of relatively rapid setting concrete, and said method includes the step of attaching said insert member to said machinery; (d) positioning said insert in a selected position with respect to said form, to facilitate said removal and reuse of said insert member; (e) casting said concrete material in said form and around said insert member; (f) removing said insert member from said concrete material after said casting, said removal step consists of rotably removing said insert member from said concrete material; (g) providing at least one reinforcing element; and (h) positioning said at least one reinforcing element in said form between adjacent serrations on said exterior surface of said insert member.