Building Construction Illustrated Flashcards
What type of brick is suitable for use where minimum variation in size, narrow color range and high degree of mechanical perfection are required?
FBX
What type of brick is suitable for use where wider color range and greater variation in size are permitted?
FBS
What type of brick is suitable for use where particular effects are desired resulting from non uniformity in size color texture and individual units?
FBA
How do you prevent efflorescence?
reduce moisture absorption
What process refers to forming brick by molding relatively wet clay?
soft mud
What process refers to forming brick in a mold lined with sand to prevent sticking and produces a matte textured surface?
sandstruck brick
What process refers to forming brick in mold lubricated with water to prevent sticking, producing a smooth dense surface?
waterstruck brick
What process refers to forming brick by extruding stiff but plastic clay through a die and cutting the extrusion to a length with wires?
stiff mud
What process refers to forming brick by molding relatively dry clay under high pressure resulting in sharp-edged smooth surfaced bricks?
dry press
What brick grade do you use when in contact with the ground or likely to be permeated with water in subfreezing temperatures?
SW
What brick grade do you use as a backup ofr in interior masonry?
NW
What are the 2 grades of CMU?
N - above/below ground
S - above ground only
What is added to steel to make stainless steel?
at least 12% chromium to be highly resistant to corrosion
What is weathering steel?
high strength low alloy steel that forms an oxide coating when exposed to rain or moisture in the atmosphere.
What applications is aluminum for?
extruded and sheet forms for secondary building elements such as windows, doors, roofing, flashing, trim and hardware. structural framing
What are the applications for copper?
electrical wiring, water piping
What is brass used for?
windows, railings, trim and finish hardware
What are 6 thermosetting plastics?
Epoxies, melamines, pheloics, polyesters, polyurethanes, silicones. They are used for adhesives, and coatings
What are 9 thermo plastics?
ABS, Acryclics, Cellulosics, Nylons, Polycarbonates, Polyethylene, Polypropylene, Poylystyrene, Vinyls. Used for pipe fittings, glazing adhesives, fibers, dampproofing,
What are 3 major types of glass?
sheet glass, plate glass and float glass
What is minimum clear width of a stair? What is minimum clear width for stairs serving occupant load of 49 or less?
clear width of stair = 44”.
36” for 49 occupant load
How far can handrails project into space? stringers and trim?
handrail 4.5”
stringers and trim 1.5”
How wide must a stair landing be?
at least as wide as the stair and at least 44” in direction of travel. dwelling units = 36”
What is the height of a handrail?
handrail height = 34 to 36”
How far should a handrail extend beyond the top riser? bottom riser?
extension beyond top riser = 12”
extension beyond bottom riser = one tread +12”
What is the minimum height of a guardrail?
guardrail height = 44”
What is the spacing between guardrails?
not less than 4” sphere
What is the clearance between handrail and wall?
handrail clearance = 1.5”
What is the diameter of a handrail?
diameter of handrail = 1.25” to 2”
What is the length of a landing of a ramp?
ramp landing = 60”
changing directions = 60” x 60”
What is the height of a handrail in a ramp?
height of handrail = 34” to 38” above ramp
What are the requirements for having a handrail on both sides of a ramp?
if it is greater than 6” rise of 72” run, it must have a handrail on both sides
What are 4 factors that determine elevators?
- type of occupancy
- amount and tempo of traffic to be carried
- total vertical distance of travel
- round trip time and speed desired
What is the doorway minimum clear opening for an accessible toilet?
accessible toilet = 32”
What are the dimensions of the clear space in front of a bath tub?
clear space = 30” x 60” or
48”x 60” for parallel approach
