Block cores are typically tapered so that their prime floor has a greater surface on which to unfold a mortar mattress and for simpler handling. Most CMUs have two cores, but three- and four-core models are also
Block cores are typically tapered so that their prime floor has a greater surface on which to unfold a mortar mattress and for simpler handling. Most CMUs have two cores, but three- and four-core models are also produced. A core also allows for the insertion of metal reinforcement to span programs to find a way to increase tensile energy.
