Ballast Chapter 37-Masonry

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  1. morar composition
    mixture of cement, lime, sand and water
  2. why is water rention of the mortar important
    to improve the hydration of the cement as it sets
  3. what is masonry cement
    a prepared mixture of portland cement and pulverized limestone
  4. lime helps retain___
  5. what is the difference between grout and mortar
    mortar holds masonry units together and grout fills wall cavities and or bonds masonry to reinforcement
  6. two types of brick
    • facing brick- used for exteriors of buildings
    • building brick-used for building. it does not have any special finish and is made without regard to color.
  7. four different types of mortar
    • M,S,N,O
    • m=has the greatest compressive strength and uses the least amount of lime.
    • o= has the least compressive strength and uses the most amount of lime
  8. FBS, FBX and FBA
    • types of facing brick
    • FBS-wide range of color and variation in size are acceptable and required
    • FBX-high degree of mechanical perfection, narrow color range and min variation in size are required
    • FBA-nonuniform in color size and texture
  9. builidng brick is graded according to
    • resistance to exposure
    • SW-sever weathering
    • MW-moderate weathering
    • NW-negligible weathering
  10. wythe
    a continuous vertical section of a wall one masonry unit in thickness
  11. a brick wall is stronger isf the joints
    do not align
  12. belt or sting course
    • used to create a strong horizontal line across a facade.
    • called a sill course if it is located at the level of a window sill
  13. spacing of expansion joints
    • 100' for major expansion joints
    • 20' for typ expansion joints and joints
  14. slope of a coping is called
  15. one of the most important considerations in designing a brick wall
    • watertightness.
    • in order to accomplish this
    • 1.brick and mortar must be porperly selected for climate conditions and loading
    • 2.brick joints must be tooled correctly to shed water
    • 3.control joints must be located correctly to allow the wall to move
  16. weep holes should be located every
    24" oc
  17. base flashing should extend______and be set in a reglet
    8-10 in

    (page 37-6)
  18. a lintel carries the weight of ____
    the wall above the top of the opening in a triangular  area defined by 60 degree angle each side of the opening
  19. efflorescence
    white deposit of water soluble salts on the surface of brick masonry
  20. efflorescence is caused
    when water seeps into the masonry and dissolves soluble salts present in the masonry, backup wall, mortar or anything in contact with the wall
  21. describe what a stretcher and header are
    • the way the bricks are laied
    • (page 37-3)
  22. describe what bull stretcher and bull header are
    the way the brick are laied

    (page 37-3)
  23. describe what soldier and sailor are
    • the way the brick are laied
    • (page 37-3)
  24. describe stretcher bond, common bond, english bond, cross bond, flemish bond and stack bond
    • brick bonds patterns
    • (page 37-4)
  25. what is tuck point or repointing
    if mortar has fallen out it is the porcess  of relacing
  26. equivalent thickness
    • solid thickness obtained if the holes in a CMU were filled
    • ex a 7-5/8 thick block filled with 60percent solids
    • 7.625x.60=4.58" equiv thickness

    (fire ratings for masonry walls are based on this value)
  27. types of stone coursing
    rubble (uncoursed), squared stone and ashlar.
Card Set
Ballast Chapter 37-Masonry
Architectural Registration Exam reveiew Ballast chapter 37-masonry
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