1 Flashcards
electrolysis
The deteriorating reaction between dissimilar metals that are in contact in the presence of moisture. Also called galvanic action.
drywall
A masonry wall built without mortar. Also, an interior wall or ceiling of gypsum wallboard construction.
lumber
Wood that has been sawn into construction timbers.
grade MW (moderate weather)
A grade of brick used where moderate resistance to freezing is required.
matrix
The binding or cementing material in mortar, concrete, or terrazzo.
core test
A compression test of hardened concrete that had been cut from the structure.
concrete masonry unit (CMU)
Another term for concrete block.
patterned glass
Glass that has been textured or to which a pattern has been applied in order to obscure vision or create a decorative effect.
square
A measure of roofing surface area, equal to 100 SF.
ceramic tile
Small, flat tile units set on floors, walls, or ceilings to provide permanent, waterproof, durable, and easily-maintained finish surfaces.
shake
A lengthwise grain separation due to natural causes.
lock
A mechanical fastening device with a rectangular locking bolt that is projected manually or with a key.
capillary action
The tendency of water to move into small spaces, regardless of gravity.
header course
A masonry course in which the flat, short ends of the unit are exposed.
bleeding
The movement of water to the surface of freshly cast concrete.
alloy
A substance composed of two or more metals that have been intimately mixed.
lath
Wire mesh, gypsum lath, wood strips, and so on, which are used for the support and adhesion of plaster.
vapor barrier
An airtight layer used to prevent moisture from a warm interior from passing into and condensing within a cold wall or ceiling area.
swinging door
The most common type of door, generally hung on butts or hinges that are attached to the jambs or bucks.