What is slump when referring to concrete?
Slump is an indication to measure the workability of the concrete mixture at the point of placement. The slump test is done to measure the consistency from truckload to truckload. Good concrete practices are to have a 3-5 inch slump. The more water added to the concrete mixture the higher the slump the lesser the strength and vice-versa. Water reducing admixtures are available to increase workability (higher slump) at the same time increasing the strength and improving concrete durability. Ask your ready mix producer about admixtures that are available.