Mixing Concrete by the Yard (MCbtY)

A process of mixing materials consisting of sand like and gravel like hard materials, powdered like cement and water, like concrete or other similar materials, which method comprising of an embodiment of:

• a flexible industrial composite bag having a bottom, adjoining vertical sides with straps attached to the vertical walls around the perimeter of the bag at intervals suitable for the strength of the bag and its content and extending beyond the top of the opening;
• and the bag sized to match the container it is intended to fit;
• and bag and strap combination having the strength to support and contain the weight of the material dispensed inside the bag;
• the vertical sides of the bag are sustained by the outward straps extending a suitable length from the opening edge of the bag with the length end of the straps pinned to an overhead rail system set on columns adequate to support the weight of the rails, bag and materials, which, columns are set around the footprint of the bag;
• displacement of the sides of the bags by the movement of opposing overhead rails to cause the material to move in one direction and then return the bag end and then the same occurs for the opposite side of the bag in sufficient displacements as to cause turbulence and acceptable mixing of the materials contained within the bag.