THE ASSOCIATED CEMENT COMPANIES LIMITED

ACC Samrat is the brand name for a product newly developed by the Research and Consultancy Directorate.It is an ordinary portland cement surpassing the requirements of IS:12269-53 grade.
It is produced from high quality clinker ground with high quality gypsum.

BUREAU OF INDIAN STANDARD SPECIFICATIONS

Type of Cement 
Indian Standard
Ordinary
Portland
Cement
33
Grade
269-1989
Ordinary
Portland
Cement
43 Grade
8112-1987
Ordinary
Portland 
Cement
53 Grade
12269-1987
Portland
Pozzolanna
Cement,
IS : 1489-
1991
PART 1*
Portland
Blast Furnace
Slag Cement
IS : 455-1989
Sulphate
Resisting
Cement IS:12330-1998
White 
Cement,
IS:8042-1989
Physical Properties
Minimum Compressive Strength,
MPa
            
3-days
16
23
27
16
16
10
14.4
7-days
22
33
37
22
22
16
19.8
28-days
33
43
53
33
33
33
29.7
FINENESS
Minimum specific surface, M2/kg (Blaine's air permeability)
225
225
225
300
225
225
225
SETTING TIME, Minutes
initial mini : 
30
30
30
30
30
30
30
final max : 
600
600
600
600
600
600
600
SOUNDNESS EXPANSION
(Le Chatelier) - max. mm 
10
10
10
10
10
10
10
Autoclave test, percent maximum
0.8
0.8
0.8
0.8
0.8
0.8
0.8
DEGREE OF WHITENESS,percent minimum
 70.0
CHEMICAL PROPERTIES
LOSS ON IGNITION, percent, maximum
5.0
5.0
4.0
5.0
5.0
5.0
- 
Iron OXIDE, percent, maximum 
1.0
INSOLUBLE RESIDUE, percent max, 
4.0
2.0
2.0
***
4.0
4.0
2.0
MgO percent, maximum 
6.0
6.0
6.0
6.0
8.0
6.0
6.0
SO3,percent, maximum for
 C3A less than 5 percent 
2.50
2.50
2.50
-
-
2.5
2.75
(C3A  7% max)
C3A more than 5 percent 
3.0
3.0
3.0
3.0
3.0
-
3.0 
(C3A  7% min)
Lime Saturation Factor (LSF) 
0.66 to 1.02
0.66 to 1.02
0.80 to 1.02
-
0.66 to 1.02
0.66 to 1.02
0.66 to 1.02
Ratio AF minimum 
0.66
0.66
0.66
-
-
-
-
Tricalcium Aluminate (C3A) Max percent 
5.0
- 
Tetracalcium Aluminoferrite +2 tricalcium aluminate 
(C4AF + 2C3A) max percent.
25.0
- 
*** x + 4(100-x)X/100=declared fly-ash %.
The Grade indicates 28 day compressive strength in MPa-(1MPa=10Kg/Cm2)
* PART 1 - FLY ASH BASED
Works Test Report on 28 Days Compressive Strength of Cement Despatched 
During the month of August - 99
Date of Despatch
28 Days Compressive Strength (MPa)
 
43 Gr.OPC
53 Gr. OPC
SURAKSHA
1
55.5
61.5
56.5
2
54.5
60.0
57.0
3
54.0
62.0
60.0
4
56.0
60.5
56.0
5
56.5
61.5
57.5
6
55.5
62.0
58.0
7
54.5
60.0
58.5
8
54.5
60.5
57.5
9
53.5
57.5
54.5
10
57.5
57.5
55.5
11
58.0
--
58.0
12
56.5
--
57.5
13
57.5
60.0
54.0
14
54.0
--
56.5
15
56.5
57.5
56.5
16
54.0
57.5
52.5
17
53.5
57.0
57.0
18
53.0
57.0
58.5
19
53.5
58.0
55.0
20
53.0
58.5
56.0
21
53.5
60.0
57.5
22
53.5
57.0
54.5
23
53.0
--
53.0
24
54.5
61.5
55.0
25
53.5
63.5
57.5
26
55.5
64.0
54.0
27
53.5
--
53.5
28
56.0
60.0
57.5
29
53.0
57.5
53.5
30
54.5
--
57.5
31
54.0
57.5
62.5
 

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