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Paving

             298   CHAPTER EIGHT





                                       LAP BARS
                                       30   DIA.
                                        AND TIE                      TRANSVERSE
                                       WITH WIRE                     REINF. BARS
                                                                               LONGITUDINAL
                                                                               REINF. BARS
                                         3/4"
                                         PLYW’D

                                                       2 6
                                                                                4" MIN.
                                                      4 4
                                                      POSTS
                                        WEDGE             1" PLYWOOD OR
                                        FOR HEIGHT        1 6 T&G
                                        ADJUSTMENT
                                        USE 2 12 STRINGER
                                                                 FOOTINGS
                                        FORMS AT SIDES
                                                                 BELOW
                                        OF STEPS                 FROST LINE
                                                                      Reinforcing Bars

                                 Concrete Dimensions       Longitudinal          Transverse
                                Length, ft.  Thk., in.  Size   Spacing, in.  Size   Spacing, in.
                                   2-3          4        #2        10         #2       12-18
                                                                   1
                                   3-4          4        #2       5 /2        #2       12-18
                                                                   1
                                   4-5          5        #2       4 /2        #2       18-24
                                   5-6          5        #3        7          #2       18-24
                                   6-7          6        #3        6          #2       18-24
                                   7-8          6        #3        4          #2       18-24
                                   8-9          7        #4        7          #2       18-24

                               FIGURE 8-22
                              Forms and reinforcing for self-supporting steps. (from Dezettel, Masons and Builders
                              Library).

                              8.2.4 Patios

                              Concrete patios are built the same as sidewalks except that the size
                              and shape will dictate a different pattern of control joints and a
                                               1
                              drainage slope of   4 in. per ft. away from the house is recommended.
                                                                                               1
                              If the patio is 12 ft. wide, for instance, the total slope would be 12    4

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