2010年8月8日星期日

bonding at angles or jambs

At the end of a wall at a stop end , at an angle or quoin and at jambs of openings , the bonding of brick has to be finished up to a vertical angle
  • To complete the bond , a brick 1/4 wide has to be used to close or complete the bond of the 1/4 overlap of face brickwork
  • A brick , cut in half along its length , is used to close the bond at angle . THis cut brick is termed a queeen closer.
  • If the narrow width queen closer were laid at the angle , it might be displaced during bricklaying
  • TO avoid this possibility , the closer is laid next to a header
  • THe rule is that a closer is laid next to quoin ( corner ) header.
  • Walls 1 1/2 B thick may be used for susbstantial walling for laggrer buildings where the walling is finished fairface both sides
  • Fairface describes a brick wall finished with a reasonably flat and level face for the sake of appearance
  • TO complete the bond of a solid wall 1 1/2B thick in Double Flemish bond , it is necessary to use cut half brick in the thickness of the wall
  • At angles and stop ends of a wall , queen closer are laid next to quoin headers and a three quater length cut brick is used .
  • Cutting half-length ( 1/2 bats ) and three quater brick and closers is time consuming and wasteful .

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