Terrazzo Floor Control Joints. The control joints in the concrete slab should not have been covered. In monolithic terrazzo where slab has been recessed or sawn to create a weakened vertical plane. Incorporate those joints and required.
07.130.0324: Polyacrylate Terrazzo - Divider Strip Over ...
The national terrazzo and mosaic association, inc. Saw cutting of control joints must be done between 12 and 24 hours after placement of the structural 300 series recessed mount floor expansion joint covers.
Gallery of Terrazzo Floor Control Joints
In monolithic terrazzo where slab has been recessed or sawn to create a weakened vertical plane. Movements in the control joints telegraphed up through the terrazzo assembly. Control joints are small gaps formed in floors and walls to allow localised movements that arise from drying shrinkage, thermal gain/loss and creep. They should have either been continued up through the terrazzo assembly, or the control joints should have been stabilized with dowels and epoxy.
