CONTACT COLUMBIA QUICK MIX To schedule your concrete delivery, please type in the following information and submit- our dispatcher will then call you to verify given information. Type of Project and amount of Concrete needed Name / Business Name Delivery Address & Phone Number Method of Payment We accept Personal Checks and Cash.VisaMCAmerican ExpressDiscover3% Processing Fee charged on ALL Credit Card transactions. Hours of Operation/Dispatch: 7:00 a.m. – 7:00 p.m. Monday – Saturday.