Granular dry to wet slurry blender/dispenser systems and methods

A method of controlling operation of a concrete additive mixing system, comprising:

• selecting a recipe, at least one granular concrete additive, and a target batch weight;
• determining the amount of water required for the recipe selected;
• filling a weigh vessel with the amount of water required for the recipe selected;
• opening at least one valve to release the granular concrete additive into the weigh vessel;
• mixing the granular concrete additive and water in the weigh vessel;
• determining the weight of the combined water and concrete additive in said weigh vessel;
• transmitting the weight of the combined water and granular concrete additive in said weigh vessel to a controller;
• and
• opening or closing said at least one valve in response to the combined weight of water and granular concrete additive in said weigh vessel;
• wherein opening said at least one valve occurs at four intervals, the intervals comprising:
• (i) a high speed, wherein the valve is open;
• (ii) a medium speed, wherein the valve alternates between an open position and a closed position at equal intervals;
• (iii) a low speed, wherein the valve alternates between an open position and a closed position such that the valve is in a closed position for a longer interval than an open position;
• and
• (iv) an inch speed, wherein the valve alternates between an open position and a closed position such that the valve is in a closed position for a longer interval than that of step (iii).