ABSTRACT
As is the case with reinforced concrete, masonry may be either pre-or post-tensioned. Pre-tensioned masonry is probably best suited to the prefabrication of elements in a factory, as in the case of masonry flooring units. The process involves prestressing tendons being tensioned and anchored to independent points either end of the masonry element. In some cases the anchorages will be at either end of a long building and a number of masonry elements will be constructed in a line about the tendons. When the masonry has reached sufficient strength, the tendons are released from the anchorages and the force in them is consequently applied to the masonry through the bond between the tendon and the surrounding concrete or mortar.
