Selected Class C with high free lime for rapid-set applications, flowable fill and controlled low-strength material.
Where a Class C ash is used as a binder in its own right rather than as a cement replacement, free lime content and set time matter more than anything else. This grade is selected for exactly that: flowable fill, controlled low-strength material, trench reinstatement and rapid-set repair mixes.
Set time is reported on every lot so that placement crews can plan the working window.