Concrete slab best choice to replace chimney cap. Staff Writer. ... The thickness of the cap slab would be 21/2 inches at the outer edge and would get thicker as it approaches the clay flue liners.

Mobile Blending Unit (MBU) is a truck-mounted pump for use with self-leveling Supercap system for finishing new concrete or capping existing slabs. Unit is mounted on a Mack truck chassis, and a ...