Conc. Temp. Control

  • May 2020
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CALCULATION OF TEMPERATURE CONTROL OF CONCRETE NO.

1

MATERIALS

TEMPERATURE DEG.CENT.

AGGREGATES

A)

SAND

16.4

B)

3/8''

9.6

C)

3/4''

19.0

D)

1/2''

0.0

AVERAGE AND TOTAL

2

45

CEMENT

60

MICRO-SILICA

0

AVERAGE AND TOTAL

3

MIXING WATER

4

WATER ON AGGREGATES

5

ICE

60 7

KILOGRAMS 33.02

31

CONCRETE TEMPERATURE :

CALCULATION : WHERETa : = Tc = Tw = Wa = Wc = Wwa = Wi =

TEMPERATURE OF AGGREGATES TEMPERATURE OF AGGREGATES TEMPERATURE OF AGGREGATES WEIGHT OF AGGREGATES WEIGHT OF CEMENT WEIGHT OF WATER ON AGGREGATES WEIGHT OF ICE NEEDED

TEMP. = 0.22 (Ta Wa + Tc Wc ) + 0.22 ( Wa + Wc ) + Ww + Wi + Wwa

( Ww - Ww ) Tw + Wwa Ta - 79.6Wi 0.22 ( Wa + Wc ) + Ww + Wi + Wwa

SPECIFIED FRESH CONCRETE TEMPERATURE :

ATURE CONTROL

QUANTITY OF EACH MA

WEIGHT

(KG/M3) TEMP.

677

784

0

3/4''

1/2''

45

0

19.0

0.0

395 MIXING WATER 784

TEMP.

LITERS

0

6

160

1856 400 0 400

TOTAL H2O

160

120

20

40 -2.02

DEGRE CENTIGRADE

Ww - Ww ) Tw + Wwa Ta - 79.6Wi .22 ( Wa + Wc ) + Ww + Wi + Wwa

DEG. CENT.

Y OF EACH MATERIALS IN 1CU.M.

TOTAL

395

677

AGGREGATES

3/8''

SAND

1856

45

45

60

0

9.6

16.4

60

0

WATER ON AGGREGATES (WATER CONTENT OF ALL AGGREGATES)

KILOGRAMS OR LITERS

20

CEMENT CONTENT

TOTAL

400

CONTENT

CEMENT

0 MICRO-SILICA

400

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