|
Mix.
|
Material
|
Thickness
mm.
|
|||||
|
5
|
10
|
20
|
30
|
40
|
50
|
||
|
1:1
|
C
|
5.1
|
10.1
|
20.3
|
30.5
|
40.6
|
50.8
|
|
FA
|
3.5
|
7.1
|
14.2
|
21.3
|
28.4
|
35.5
|
|
|
1:1 ½
|
C
|
4.1
|
8.2
|
16.3
|
24.5
|
32.6
|
40.8
|
|
FA
|
4.3
|
8.6
|
17.1
|
25.6
|
34.2
|
42.7
|
|
|
1:2
|
C
|
3.4
|
6.9
|
13.7
|
20.6
|
27.5
|
34.3
|
|
FA
|
4.8
|
9.6
|
19.3
|
28.9
|
38.5
|
48.1
|
|
|
1:2 ½
|
C
|
2.9
|
5.9
|
11.7
|
17.5
|
23.4
|
29.2
|
|
FA
|
5.1
|
10.2
|
20.5
|
30.7
|
41.0
|
51.2
|
|
|
1:3
|
C
|
2.5
|
5.1
|
10.1
|
15.2
|
20.2
|
25.3
|
|
FA
|
5.3
|
10.6
|
21.2
|
31.8
|
42.4
|
53.0
|
|
|
1:4
|
C
|
2.0
|
4.0
|
7.9
|
11.9
|
15.8
|
19.7
|
|
FA
|
5.5
|
11.1
|
22.1
|
33.2
|
44.2
|
55.3
|
|
|
1:6
|
C
|
1.4
|
2.9
|
5.7
|
8.6
|
41.4
|
14.3
|
|
FA
|
6.0
|
12.0
|
23.9
|
35.9
|
47.9
|
59.9
|
|
|
1:8
|
C
|
1.1
|
2.2
|
4.4
|
6.6
|
8.8
|
11.0
|
|
FA
|
12.3
|
24.6
|
37.0
|
49.3
|
61.6
|
66.6
|
|
C =
Cement in Kilograms, FA = Fine aggregate (sand) in litres
Note :
No allowance has been made in table for bulking and wastage.
STRENGTH
OF RAPID – HARDENING PORTLAND CEMENT CONCERTE
(Laboratory
cubes)
|
Age 3
days
|
3,853
lbs per sq. in.
|
|
Age 7
days
|
5,360
lbs per sq. in.
|
|
Age 28
days
|
6,810
lbs per sq. in.
|
|
12
months
|
7,490
lbs per sq. in.
|
