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Understanding Masonry
            126  CHAPTER FOUR



















                          RECTANGULAR TIE                            Z – TIE




















                                      WIRE ANCHORS                         CORRUGATED SHEET
                                                                             METAL ANCHOR
             FIGURE 4-27
            Masonry anchors and ties. (from Beall, Christine, Masonry Design and Detailing, 4th edition, McGraw-Hill,
                ork).
                            forcement is used in the mortar beds of concrete masonry walls to
                            help control shrinkage cracking (Figure 4-29). For residential pro-
                            jects, the long wires should be 9-gauge thickness. The width of joint
                            reinforcement should always be about 1 in. less than that of the
                                               1
                                                        5
                            units so that it has   2-in. to   8-in. cover of mortar on each side of the
                            wall. Joint reinforcement may also include flexible veneer anchors
                            for the attachment of brick, CMU, or stone veneers over concrete
                            block backing walls.
                               The second type of masonry reinforcement is heavy steel reinforcing
                            bars like those used in concrete construction. Reinforcing bars are used in





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