02.010.1311: Control Joint

02.010.1311: Control Joint This detail shows a vertical control joint at intersecting CMU walls. The debonded shear anchor ties the walls together, but also allows the intersecting wall to shrink back from the continuous wall, as the anchor moves along its track. There is horizontal joint reinforcement at 16" o.c. vertically in the wall (not [...]

Efflorescence & New Building Bloom

During construction, water gets inside a wall system and causes initial efflorescence, or “new building bloom.” Remain calm: the wall will dry and the efflorescence will go away. Powdery or chalky white deposits or stains sometimes appear on the surface of masonry buildings. Called “efflorescence,” these deposits occur when water reaches and dissolves soluble salts [...]

02.020.0202: Vertical Span – CMU Partition

This partition detail shows a vertical span condition. The wall is anchored at the base with a vertical dowel into the slab. There is a gap at the top of the wall to allow for deflection of the structure above. Horizontal joint reinforcement and vertical reinforcement are shown. Top and bottom detailing may vary.

04.130.0204: Interior Stone floor With Unbonded Mortar Bed Over Wood Substrate

Interior stone floor showing unbonded mortar bed over wood substrate

This detail shows 2 cm (3/4 in.) thick dimension stone on an unbonded mortar bed over a wood substrate. The mortar setting bed is separated from the wood with a cleavage membrane to allow the stone assembly to move independent of the structure. The stone is typically fresh-set (i.e. the mortar bed is still workable) […]

Why use Masonry for Dormitories?

Masonry buildings dominate college campuses across the country, from neo-Gothic chapels to Georgian libraries to modern residence halls. When you consider the demands on a dormitory building, it’s easy to see why masonry meets them all. Download PDF

What Does IMI Do?

The International Masonry Institute (IMI), a strategic alliance of the International Union of Bricklayers and Allied Craftworkers (BAC) and…

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