Division 4 - Masonry 4.01 UNIT MASONRY

     1.   To guarantee uniformity of color and quality, single
          source suppliers shall be used for cement materials and
          aggregate.  For reference standards refer to provisions
          of ASCE, ACI & TMS.

     2.   Brickwork, mortar and jointing for additions shall match
          the existing building; for new buildings on UMCP campus
          they shall conform to brickwork on adjacent building(s);
          Note that UMCP shall approve final selection.

     3.   No special shapes or colors will be allowed. Brick
          selected shall be from manufacturers standard line, made
          from readily available clays and shales and available for
          an indefinite period.

     4.   All brick shall be the same color throughout: no "faced"
          brick will be permitted.

     5.   Cement masonry units shall be finish grade, fine
          textured, suitable for painting. Grade and texture shall
          be uniform throughout the project. Use lightweight
          aggregate block.

     6.   Exterior corners of interior partitions, walls, window
          jambs and door jambs (without wrap-around frames) for
          C.M.U.'s shall have a 1" radius.

     7.   Precast lintels shall have the same texture as the block;
          preferably made by the same manufacturer.

     8.   Horizontal joint reinforcement shall be "truss" type,
          galvanized, with deformed wire. Provide prefabrication
          corners and tees. Exterior wall reinforcement shall be
          hot-dipped galvanized; interior wall reinforcement may be
          mill -galvanized.

     9.   Materials for mortar shall be proportioned by volumetric
          measure only. Use mixing boxes or similar equipment.
          "Shovel measure will not be permitted.

     10.  Mortar may be retempered once only. Mortar must be used
          within 1« hours after initial mixing or discarded.

     11.  Specify conditions and limit's for hot and cold weather
          masonry work.

     12.  Provide weather protection for all completed masonry
          work.