A.Complete the following statements with the words/phrases in the box.

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Basic

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2012




CANKAYA UNIVERSITY

OFFICE OF BASIC & ELECTIVE COURSES

-
ENGLISH UNIT
-

ACS
-
206

CE
-
ME
-
MECE
-
MSE


WEEK 5 Unit 16 Concrete

Vocabulary Sheet



A.

Complete the following statements with the words/phrases

in the box.






1.

Workers couldn't pour __________ for the bridge in the rain. T
hey knew

that it wouldn't harden in the
wet weather.

2.

P
ortland __________
, the
basic ingredient of concrete, is a closely controlled chemical combination of
calcium, silicon, aluminum, iron and small amounts of other ingredients

3.

Some

building supply stores sell bags of gravel and sand (or similar type of __________) already
mixed. Th
e name of the mix varies from country to country.

4.

Quality is uncertain when concrete is cast __________.
In this situation; as the concrete is not cast in
the factory, it may not be

easy to guarantee the material's stability or durability.


5.

Water reducing

admixtures
reduces the amount of water needed in the concrete mix.
In this way,
t
he
_____________

will be lower and the strength will be greater. Most low range water reducer
s reduce
the water needed in the mix by 5%
-
10%. High range water reducers reduce the mix water needed by
12% to 30% but are very expensive
.

6.

Some admixtures a
re often used in hot weather conditions to delay setting time. They are
called
__________, and

used

to delay set of more difficult jobs or for special finishing operations like
exposin
g aggregate. Many of them

also act as a water reducer.

7.

Workers mould n
early all co
ncrete placed anywhere

in one way or another. A mold is really the same
thing as concrete

__________
-
or shuttering if you are

British.

8.

Since
________________
is manufactured in a controlled casting environment, quality can be
controlled and monitored much more easily.

9.

Concrete has good ‘strength’ under compression but it is weak in tension. I
t can be made stronger
under tension by adding metal rods, wires, mesh or cables to the composite. The concrete is cast around
the rods and it is called ______________.

10.

Our company uses computerized _____________

equipment which makes sure that all mix
com
ponents are in the proper amount and proportions. This ensures that the right mix is delivered to
your job site and that your concrete performs to your expectations.

11.

Use of __________ softens the concrete mix and prevents it from hardening soon. It also re
duces the
water requirement and increases flexibility.

12.

The cons
truction industry uses __________

such as retarders and plasticizers

to reduce the cost of
concrete construction; to modify the properties; to ensure quality; and

to overcome certain problems

d
uring concrete operations.






reinforced concrete



formwork


additives


in
-
situ

aggregate



cement



precast

concrete

batching

concrete



retarders


water
-
cement ratio

plasticizers




Legal Notice:
This is a
copyrighted material. It

cannot be copied, reproduced or distributed in any form without a prior written approval from Office of
Basic

&

Elective Courses
-
English Unit
-


© CANKAYA UNIVERSITY
-

2012







B.

Match the words with their definitions.



a)

precast concrete

b)

set

c)

aggregate

d)

in
-
situ concrete

e)

concrete

f)

water
-
cement ratio

g)

formwork

h)

retarder

i)

cement

j)

batching


1.

m
aterial such as sand, gravel or crushed stone, which when mixed in
conjunction with water and
cement becomes concrete.

( )

2.

a
n additive
that is
used to

slow down the rate of setting of a concrete.

( )

3.

t
he weight of total water relative to the weight of total cement used per cubic yard.

( )

4.

concrete
product

that
is

ca
st in a factory setting

( )

5.

a grey powder made from lime and clay that becomes hard when it is mixed with water and allowed
to dry, and that is used in building

( )

6.

structure which is usually temporary but can be whole or part permanent, it is used to
contain poured
concrete to mould it into required dimensions and support until it is able to support itself

( )

7.

the process of measuring concrete mix ingredients either by volume or by mass and introducing them
into the mixture.

( )

8.

a substance used fo
r building that is made by mixing sand, small stones,

cement, and water
,

9.

to become hard and solid

( )

10.

concrete structure that is poured in its desired finished place
.

( )











Legal Notice:
This is a
copyrighted material. It

cannot be copied, reproduced or distributed in any form without a prior written approval from
Office of Basic

&

Elective Courses
-
English Unit
-


© CANKAYA UNIVERSITY
-

2012