Finals Flashcards
(107 cards)
A mortar or concrete is considered ________________ when it does not permit passage or flow of water through its pores or voids
Impermeable
What are the various methods of waterproofing concrete?
- Impermeability through a dense concrete
- Waterproofing coatings and washes
- Integral waterproofing compounds
- Membrane waterproofing
It is a black substance available in solid, semi-solid, or liquid states at normal temperatures.
Bituminuous Cement
used for sealing built-up roofing, and joints and cracks of concrete pavements.
Bituminuous Cement
composed of mixed indeterminate hydrocarbons, appreciably soluble only in carbon disulfide or other volatile liquid hydrocarbon.
Bituminuous Cement
What are the types of roofing?
a. Sheet Metal Roofing
b. Plastic Roofing
c. Tile Roofing
d. Shingles
These are manufactured in lengths of 5 to 12 ft. in 1 ft. increments, the 8 ft length being the most commonly used.
Corrugated galvanized iron sheets
is a rigidized sheet fabricated of special aluminum alloys specifically developed for aluminum roofing.
Corrugated aluminum
Has a high insulating value and is about one-
sixth lighter than similar materials.
aluminum roofing
Is silvery in color, strong and does not stain
adjoining materials.
aluminum roofing
It reacts, however, with dissimilar materials,
lead-base paints green or damp wood, certain
wood preservatives, lime mortar, concrete, and other masonry materials and must be insulated from contact with these materials .
aluminum roofing
It is a hard, brittle, chemically inert substance produced by fusing silica together with a flux and a stabilizer into a mass that cools to a rigid condition without crystallization.
Glass
used as rigid, vapor proof thermal insulation
foamed or cellular glass
used in textiles and for material reinforcement
glass fibers
used to control light transmission, glare, and solar radiation
glass block
is fabricated by drawing the molten glass from a furnace or by forming a cylinder, dividing it lengthwise, and flattering it
sheet glass
is formed by rolling molten glass into a plate that is subsequently ground and polished after cooling. it provides virtually clear, undistorted vision.
plate glass
is manufactured by pouring molten glass onto a surface of molten tin and allowing it to cool slowly
float glass
is the successor to plate glass and accounts for the majority of flat-glass production
float glass
is cooled slowly to relieve internal stresses
annealed glass
is annealed glass that is partially tempered by a process of reheating and sudden cooling
heat-strengthened glass
is annealed glass that is reheated to just below the softening point and then rapidly cooled to induce compressive stresses in the surface and edges of the glass and tensile stresses in the interior
tempered glass
consists of two or more plies of flat glass bonded under heat and pressure to interlayers of polyvinyl butyral resin that retains the fragments if the glass is broken
laminated or safety glass
is flat or patterned glass having a square or diamond wire mesh embedded within it to prevent shattering in the event of breakage or excessive heat
wired glass