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manual presents masonry details commonly used in construction and provides additional corollary information for each set of details where applicable. Each section covers a specific concrete masonry application, and includes details with side-by-side commentary.
Placement: At first course above grade and at all supports. Code required spacing: 33” o.c. MIW recommended spacing (Brick): 24” o.c. MIW recommended spacing (CMU): 32” o.c. Size: The bigger the weep hole is, the more water it allows out of the cavity and the more air it allows to circulate through the cavity.
Masonry construction has been successfully used for thousands of years but modern economic masonry construction does require careful attention to detailing and the correct installation of ancillary components. It is not sufficient to leave execution to the bricklayer without clear guidance as to the designer’s intentions.
Admixtures (also sometimes called modifiers or additives) for masonry mortars (ASTM C 1384, ref. 4k) are available for various purposes. Admixtures are functionally classified as bond enhancers, workability enhancers, set accelerators, set retarders, and water repellents.
In drafting a specification for a masonry mortar it is important to remember the functions that the mortar has in masonry construction: • To act as an adhesive (to glue) the masonry units together, • To glue joint reinforcement and connectors to the masonry units, • To act as a spacer between masonry units, • To compensate for ...
mortar must bond well to the adjacent brick units to prevent horizontal cracks in the brickwork. Brick-to-mortar bond is essential in producing the most weather tight wall system.
mortar. Mortar — A mixture of cementitious material, water, and aggregate, with or without the addition of admix-tures or additives to alter one or more plastic or hard-ened properties, used to bond masonry construction materials together and fill spaces between. Pointing Mortar — Also known as grouting mortar,
