Patent ID: 6413036
Filing Date: 2002-07-02
Classification: B60P

Abstract:
In a method for the disposition of waste concrete, the steps comprising:(a) providing a longitudinally-extending container for concrete having front and rear lateral dimensions, a bottom floor section, and longitudinal side walls extending upwardly from said bottom floor section, and being flared from the front to the back of said container such that the rear lateral dimension of said container is greater than the front lateral dimension of said container; (b) adding a mass of plastic concrete to the interior of said container; (c) compressing the side walls of said container inwardly toward one another and allowing the plastic concrete to set with said side walls being compressed inwardly relative to one another; (d) after said concrete has at least partially hardened to become self-supporting, removing said side walls from the compressed relationship to an extended relationship in which the side walls move outwardly from one another to provide a clearance space between the hardened mass of concrete and said side walls; and (e) thereafter withdrawing the hardened mass of concrete from said container through the back portion thereof.