Abstract: A concrete batch mixing system and method are disclosed that enable the batch master to measure and control both the water and cementitious ingredient feeds in relation to each other so as to be able to blend the two ingredients in a known, selected, adjustable and repeatable manner, and to agglomerate these ingredients in a counter-rotating twin screw mixing apparatus for use in the preparation of batches of mixed concrete in a concrete batching process.

Abstract: A reclamation system for receiving unused mixed concrete ingredients and the washout water therewith includes an elongated, on grade gravity separation tank having an upper discharge end over an on grade grout receiving area, an inclined belt conveyor which is pivotally mounted for limited rotation on a vertical axis between a first position alongside the tank and said grout receiving area and a second position having its lower end over said area and below said tank discharge end and having its upper discharge end over an aggregate and sand receiver.