BUILDING MATERIALS & CONSTRUCTION

Question 1

a water-base paint (where the solvent is water) used for painting concrete and masonry surfaces

Answer 1

Latex

Question 2

Often advertised as 100% acrylic latex, a water-based paint, and is generally considered the highest quality latex paint.

Answer 2

Acrylic Latex

Question 3

Paints which use varnish as a vehicle. They have the ability of leveling
brush marks, are more resistant to washing and rough usage, and have
a harder and tougher film. They can have either a glossy, semi glossy or
matt finish.

Answer 3

Enamel

Question 4

Made from materials which must contain the proper proportions of lime, silica, alumina
and iron components

Answer 4

Portland Cement

Question 5

Designed to produce better mortar than that made with normal Portland cement or with a
lime-cement combination.

Answer 5

Masonry Cement

Question 6

Artificial stone made by binding together particles of some inert material with a paste
made of cement and water. These inert materials are the aggregate.

Answer 6

Concrete

Question 7

Sand, gravel crushed stone, cinder, crushed furnace slag, burned clay, expanded
vermiculite, and perlite.

Answer 7

Aggregate

Question 8

When freshly mixed concrete is checked to ensure that the specified slump is being
attained consistently. A standard slump cone is 12 inches high (0.30) and 8 inches (0.20)
in diameter at the bottom and 4 inches (0.10) on top which is open on both ends.

Answer 8

Slump Test

Question 9

Common quality-control test of concrete, based on 7 and 28 day curing periods.

Answer 9

COMPRESSIVE STRENGTH

TEST

Question 10

Materials often added to the concrete or applied to the surface of freshly placed concrete
to produce some special result.

Answer 10

CONCRETE ADDITIVES

Question 11

An admixture which is used to speed up the initial set of concrete. Such a material may
be added to the mix to increase the rate of early-strength development for several
reasons.

Answer 11

ACCELERATORS

Question 12

to delay or extend the setting time of the cement paste in concrete.

Answer 12

RETARDERS

Question 13

an 8” x 8” x 16” will approximately weigh 40 to 50 lb. Made with heavyweight aggregate
and 25 to 35 lb. when made with lightweight aggregate.

Answer 13

HOLLOW LOAD-BEARING

CONCRETE BLOCK

Question 14

Defines as one having a core area of not more than 25% of the gross crosssectional
area.

Answer 14

SOLID LOAD BEARING

BLOCK

Question 15

One in which the core area exceeds 25% of the cross-sectional area.

Answer 15

HOLLOW; NON-LOAD
BEARING CONCRETE
BLOCK

Question 16

Clay which have been subjected to high pressure until they have become relatively hard.

Answer 16

SHALE