Protect masonry units, cementitious materials and reinforcing from moisture by storing 12" above ground and keeping protected from mud, ice and snow. Remove any damaged materials from site.
Install where shown on Drawings and approved shop drawings. Lap vertical reinforcing a minimum of 40 bar diameters (in no case less than 16 inches) at all splices. Maintain a minimum of Y:: inch clear between bars and masonry units. Fill vertically reinforced cells with grout only after all reinforcing is in place and properly tied in position. Support vertical bars in position at maximum spacing of 48" with a "vertical bar positioner". Reinforcing called out the Drawings to be at an inside or outside face should have no more than 1" clear between bars and masonry units.
Horizontal Joint Reinforcing:
Install where shown on Drawings and approved shop drawings. Lap a minimum of 12 inches at all splices. Maintain a minimum of 5/8 inch mortar coverage on the weather side.
Clean all reinforcing of dirt, ice, rust, scale, etc. prior to placement.
Erect all scaffolding independent ofmasonry walls.
Brace all walls and other masonry work against lateral loads, such as wind and
earth pressure, until masonry and grout has cured and until the floor and roof diaphragms are in place.
Culling: Cull out defective units to avoid cracked face webs. If placed in a wall, these units will be rejcctcd by Architcct. Units with chipped comers will be allowed where finishes other than paint are to be applied or where units arc concealed from view if chipped areas are pointed up flush before applying coating. Otherwise chipped comers exposed to view will be rejected.
4 Section 04220