Site cast, tilt -up wall construction has been around for years as a cost-effective means of construction. For those not very familiar with this type of construction, let me give a brief explanation. The main slab is poured and usually allowed to cure for 28-30 days. After the 30 days, forms are placed horizontally on the building floor slab and cement is poured into these forms to create the sections of walls. Prior to pouring the cement into the forms, a Bond Breaker, a solution that enables the de-bonding of the wall section from the horizontal slab, is applied directly to the horizontal slab. Some solutions leave oily residues that do not dry, and some create a thin hard membrane between the slab and poured wall, and are considered curing compounds as well. After the walls are cured 7 to 10 days, they are tilted in place (Photo 1). From the time the floor slab is placed, the typical elapsed time from starting to form the panels until the building shell is completed is 4-5 weeks.