CONCRETE 1

Question 1

CONCRETE MIX

Answer 1

 Artificial stone like mass
 Composite material
 Useful for construction
 Easy to form into shapes
 Reasonable, low-cost and
instant mix
 Reliable and high quality

Question 2

Freshly prepared concrete till it has
not yet set is called ___. After it has thoroughly set
and fully hardened it is called __ or just concrete.

Answer 2

wet or green concrete
set concrete

Question 3

COMPOSITION OF BASIC
CONCRETE MIX

Answer 3

Binding material + fine & coarse
aggregate + water+ admixture
(optional)

Question 4

composition of basic concrete mix

Answer 4

binding materials
aggregates
water

Question 5

the main element of mix
___ is a very fine powdery substance

Answer 5

cement

Question 6

__+__ = paste that coats the aggregates

Answer 6

cement + water

Question 7

___ is a fine mixture while ___ or crushed stone is a coarse mixture

Answer 7

sand
gravel

Question 8

required to with chemicals react with te cement to supply workability with the concrete

Answer 8

water

Question 9

types of concrete and its uses (3)

Answer 9

1.According to binding material used in concrete.
2.According to design of concrete.
3.According to purpose of Concrete.

Question 10

.ACCORDING TO BINDING MATERIAL USED IN CONCRETE

Answer 10

cement concrete
lime concrete

Question 11

The
concrete consisting of cement, sand
and coarse aggregates mixed in a
suitable proportions in addition to
water

Answer 11

cement concrete

Question 12

the concrete
consisting of lime, fine aggregates,
and coarse aggregates mixed in a
suitable proportions with water

Answer 12

lime concrete

Question 13

PLACING OF LIME CONCRETE
Placing of concrete shall be completed within ____ of adding water in
case of concrete is prepared with hydraulic lime. Concrete should be well cured for a
period of at least ___.

Answer 13

three hours
10 days