Volume-IF - JantERmantER

DCPL-K9AOl
MIX PROPORTIONS (BY WEIGHT) EXPECTED TO GIVE DIfFERj:NT DEGREES
OF WORKABILITY WI11i DIFFERENT VALUES OF WATER - CEMENT RATIO
(FOR GUIDANCE)
CEMENT[TOTAL AGGREGATES RATIOS
WorkabUity Waterl Ratio by Weight of Cement Ratio by Weight of Cement to
Cement to Gravel Aggregate Crushed Stone Aggregate
Ratio 20 mm. Size I 38 mm. size 20 ITU'I!. size I 38 mm. size
i
Very Low
slump
G-25mm.
"
Low
slump
25-50mm
Medium
slump
5G-100mm.
4, High
slump
100 ­
( 175 mm.
0.4 01:04.8 01:05.3 01:04.5 1:05
0.5 01:07.2 01:07.7 01:06.5 ()1:07·,
0.6 01:09.4 1:10 01:07.8 01:09.6
0.7 1:10 1:12 01:08.7 01:10.6
0.4 01:03.9 01:04.5 01:03.5 1:04
0.5 01:05.5 01:06.7 1~05 01:05.5
0.6 01:06.8 01:07.4 • 01:06.3 1:07
0.7 1:08 01:08.5 01:07.4 1:08
0.4 01:03.5 01:03.8 01:03,1 01:03,6
0.5 01:04.8 01:05.7 01:04,2 1:05
0.6 1:08 01:07.3 01:05,2 01:06.2
0.4 01:03.2 01:03.5 (l1:02.9 01:03.3
0,5 01:04.4 01:05.2 01:03.9 01:04,6
0.6 01:05.4 01:06.7 ' 01:04.7 01:05.7
0.7 01:06.2 01:07.4 01:05.5 01:06.5
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NOTE-2:
Notwithstanding anything mentioned above. the cement I Total aggregatE!
ratio is not to be increased beyI;lnd 1:9 without specific permission of the
Engineer.' "
, It should be n6ied tha!such high aggregate cement ratlos will be required for
concretes of very low slump and high _ter-cement ratios which may be
required to be used in mass concrete work only.
The above figures are for guidance only, the actual cemenV aggregate ratios
are to be wor1