Masonry Magazine December 1987 Page. 24
A) WEDGE AND SLEEVE ANCHORS
B) LAG BOLT SHIELDS
C) MASONRY SCREWS
Fasteners for Solid Masonry Units
FIG. 6
A) SPIRAL NAIL
B) CUT NAIL
Masonry Nails
FIG. 8
are generally used on commercial or industrial projects where large volumes of fasteners are required. Several pin styles and lengths are produced for different fastening requirements (see Fig. 10).
Powder-driven fasteners require special installation equipment, safety equipment and inspection procedures. For this reason, the manufacturer should be contacted to determine proper equipment and installation specifications.
Adhesives. A multitude of adhesives, such as epoxies, mastics and contact cements, is produced for various bonding applications. Many of these produce high bond strengths, have short setting times and offer versatility in bonding different materials. Adhesives may be used to attach furring, electrical boxes, wall paneling, etc. (see Fig. 11). The manufacturer's literature should be referred to when determining the suitability of an adhesive for a particular application. Some adhesives may not bond properly to masonry, may not have the elasticity required to accommodate movements of dissimilar materials and may be affected by exposure to weather, chemicals or temperature extremes.
FASTENER SELECTION
The selection of an appropriate fastener can usually be based on four considerations: 1) the type of brick used in the construction, 2) the weight of the attachment, 3) the environmental exposure (i.e., interior or exterior) and 4) aesthetics.
Construction and Attachment
The type of brick used in construction will determine
A) WEDGE ANCHOR
B) LAG BOLT
C) MASONRY SCREW
Fasteners Installed in Solid Masonry Units
FIG. 7
Powder-Driven Fastening Tool
FIG. 9
3