Finals Flashcards by LJ ESALLEY

A mortar or concrete is considered ________________ when it does not permit passage or flow of water through its pores or voids

Impermeable

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What are the various methods of waterproofing concrete?

Impermeability through a dense concrete
Waterproofing coatings and washes
Integral waterproofing compounds
Membrane waterproofing

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It is a black substance available in solid, semi-solid, or liquid states at normal temperatures.

Bituminuous Cement

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used for sealing built-up roofing, and joints and cracks of concrete pavements.

Bituminuous Cement

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composed of mixed indeterminate hydrocarbons, appreciably soluble only in carbon disulfide or other volatile liquid hydrocarbon.

Bituminuous Cement

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What are the types of roofing?

a. Sheet Metal Roofing
b. Plastic Roofing
c. Tile Roofing
d. Shingles

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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

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is a rigidized sheet fabricated of special aluminum alloys specifically developed for aluminum roofing.

Corrugated aluminum

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Has a high insulating value and is about one-
sixth lighter than similar materials.

aluminum roofing

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Is silvery in color, strong and does not stain
adjoining materials.

aluminum roofing

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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

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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

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used as rigid, vapor proof thermal insulation

foamed or cellular glass

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used in textiles and for material reinforcement

glass fibers

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used to control light transmission, glare, and solar radiation

glass block

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is fabricated by drawing the molten glass from a furnace or by forming a cylinder, dividing it lengthwise, and flattering it

sheet glass

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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

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is manufactured by pouring molten glass onto a surface of molten tin and allowing it to cool slowly

float glass

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is the successor to plate glass and accounts for the majority of flat-glass production

float glass

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is cooled slowly to relieve internal stresses

annealed glass

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is annealed glass that is partially tempered by a process of reheating and sudden cooling

heat-strengthened glass

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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

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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

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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

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has a linear or geometric surface pattern formed in the rolling process to obscure vision or to diffuse light

patterned glass

has one or both sides acid-etched or sandblasted to obscure vision

obscure glass

is an opaque glass for concealing the structural elements in curtain wall construction, produced by fusing a ceramic frit to the interior surface of tempered or heat-strengthened glass

spandrel glass

is a glass unit consisting of two or more sheets of glass separated by a hermetically sealed air space to provide thermal insulation and restrict condensation

insulating glass

has a chemical admixture to absorb a portion of the radiant heat and visible light that strike it

tinted or heat-absorbing glass

gives the glass a pale blue-green tint

iron oxide

impart a grayish tint

cobalt oxide and nickel

has a thin, translucent metallic coating to reflect a portion of the light and radiant heat that strike it

reflective glass

transmits visible light while selectively reflecting the longer wavelengths of radiant heat, produced by depositing a low-e coating either on the glass itself or over a transparent plastic film suspended in the sealed air space of insulating glass

low-emissivity glass

are straight, slender pieces of metal having one end pointed and the the other enlarged and flattened for hammering into wood or other building materials as a fastener

nails

nails lengths are designated by the term ___________

penny (d)

provide the largest amount of contact area and are used when exposure of the heads is acceptable

flat heads/flat head nails

are only slightly larger than the shaft and may be tapered or cupped

finish nails

are used for easy removal in temporary construction and concrete formwork

double-headed nails

have greater holding strength but may tend to split some woods

sharp-pointed nails

are used for easily split woods

blunt points

use gun-power charges to drive a variety of studs into concrete or steel

power-driven fasteners

are capable of fastening materials to wood, steel, and concrete

pneumatic nailers and staplers

are metal fasteners having tapered, helically threaded shanks and slotted heads, designed to be driven into wood or the like by turning

screws

are threaded metal pins or rods, usually having a head at one end, designed to be inserted through holes in assembled parts and secured by a mating nut

Bolts

are used where the head may be inaccessible to the placement of a nut or where an exceptionally long bolt would be needed to penetrate a joint fully

Carriage bolts

are perforated disks of metal, rubber or plastic used under the head of a nut or bolt or at a joint to distribute pressure, prevent leakage, relieve friction or insulate incompatible materials

Washers

are specially constructed to prevent a nut from shaking loose

Lock washers

have small projections that are progressively flattened as a bolt is tightened, the gap between the head or nut and the washer indicating the tension in the bolt

Load-indicating washers

are anchor bolts having a split casing that expands mechanically to engage the sides of a hole drilled in masonry or concrete

Expansion bolts

is a trademark for a brand of expansion bolt having a split, sleevelike sheath threaded so that turning the bolt draws the ends of the sheath together and spreads the sides to engage a hole drilled in masonry or the inner surface of a hollow wall

Molly

are lead or plastic sleeves inserted into a predrilled hole and expanded by driving a bolt or screw into it

Expansions shields

are used to fasten materials to plaster, gypsum board and other thin wall materials. they have two hinged wings that close against a spring when passing through a predrilled hole

toggle bolts

are metal pins that are used for permanently joining two or more structural steel members by passing a headed shank through a hole in each piece and hammering down the plain end to form a second head

rivets

used when a joint is accessible from one side only, have an explosive filled shank that is denoted by striking the head

explosive rivets

are used to secure the surfaces of two materials together

adhesive

primarily for indoor use where temperature and humidity do not vary greatly; they may be weakened by exposure to heat or moisture

animal or fish glue

set quickly, does not stain and is slightly resilient

white or polyvinyl glue

are extremely strong, waterproof and may be used to secure both porous and nonporous materials

epoxy resins

are strong, waterproof and durable for outdoor use, but they are flammable and their dark color may show through paint

resorcin resins

forms a bond on contact and therefore does not require clamping

contact cement

should be about 1/8” (3) less than the combined thickness of the boards being joined

wood screw

are generally used for hardwoods

fine-threaded screws

used for softwoods

coarser-threaded

alum and soap mixtures applied in alternate mixtures

Sylvester process

layers of waterproofing materials used in this method range from ordinary tar paper laid with coal-tar pitch to asbestos or asphalted felt laid in asphalt

membrane waterproofing

minute asphalt particles dispersed in water and maintained ins suspension by a mineral colloid emulsifying agent

asphalt emulsions

composed of a variety of products from thin liquids to heavy paste

cutback asphalts

metal products used in construction

hardware

hardware meant to be concealed

rough hardware

it has a finished appearance as well as a function

finish hardware

a cut or wire low-carbon steel nail, having a slender plain shank and a medium diamond point

common nail

a slender nail made from finer wire than the common nail

finishing nail

a small finishing nail, usually of the same thickness throughout, with a head that is almost flush with the sides or a head that projects slightly to one side

brad nail

similar to a common nail but thinner; has a long shank which may be smooth or barbed

box nail

a slender nail with a small, slightly flared head used for finishing work

casing nail

a nail having a number of ring-like grooves around the shank to increase its holding power

ring-shank nail

any nail designed for clinching, after driving

clinch or clench nail

a short nail having a barbed or ring shank and a comparatively large flat head

roofing nail

a metal finish using a dip to give a bright surface to brasses

bright

a nail designed for securing a metal lath

metal lath nail

a u-shaped piece of metal or heavy wire, pointed ends, driven into a surface to secure a sheet material

electrician’s staple nail

a hardened steel nail having a flat countersunk head and a diamond point

concrete nail

a hardened steel nail with a knurled or fluted shank

masonry nail

nailing in which the nails are driven perpendicular to the face of the material

face-nailing

also called concealed or secret nailing

blind-nailing

nailing in such a way that the nail heads are not visible on the face of the work

blind-nailing

also called skew or tusk nailing

toe-nailing

nailing obliquely to the surfaces being joined

toe-nailing

are extremely threaded fasteners

screws

a helically threaded metal fastener having a pointed end; forms its own mating thread when driven into wood or other resilient material

wood screw

fastened by screwing into metal

metal screw

an anchor having a metal shell with a screw along its central axis

screw anchors

bolt having a square head and a thin, coarse-pitched thread

lag screw, lag bolt, coach screw

a screw used to fasten metal roofing sheets to the purlins

tekscrew

a metallic pin or rod having a head on one end and an external thread on the other for screwing up a nut

bolts

a short metal block having a central hole which is threaded to receive a bolt, screw or other threaded part

nut

a threaded bolt having a straight shank and a conventional head

machine bolt

a threaded bolt having a circular head, an oval or flat bearing surface

carriage bolt

a bolt having a nut with pivoted flanged wings that close against a spring when it is pushed through a hole

toggle bolt

same as expansion shields. an anchoring device having an expandable socket that swells as a bolt is tightened into it

expansion bolts

are movable joints used to attach, support, and turn a door

hinges

referred to as butts because they are usually attached to the butt edge of a door

butt hinge

is the most common type and has both leaves fully mortised into the frame and edge door

full mortise hinge

has one leaf mounted on the face of the door and the other leaf mortised into the frame

half-surface hinge

leaves are surface-applied to the frame and mortised into the edge of the door

half-mortise hinge

is applied to the face of both the door and frame

full-surface hinge

a paumelle hinge with knuckles forming an oval shape

olive-knuckle hinge

Finals Flashcards

(107 cards)