CCI manufactures various types of cements like ordinary Portland Cement (OPC) & Pozzolana Portland Cement (PPC) of different grades viz 33, 43 ,53 grades under strict quality control with the brand name of CCI Cement.
Salient characteristics of different types of cement produced by CCI are :
|
CHARACTERISTICS |
OPC 53S GRADE IS 269 |
OPC 53 GRADE IS 269 |
OPC 43 GRADE IS 269 |
OPC 33 GRADE IS 269 |
PPC IS 1489 |
|
|
YEAR |
2015 |
2015 |
2015 |
2015 |
2015 |
|
|
Fineness- |
370 |
225 |
225 |
225 |
300 |
|
|
Setting time (Minutes) |
||||||
|
a) |
Initial-not |
60 |
30 |
30 |
30 |
30 |
|
b) |
Final-not |
600 |
600 |
600 |
600 |
600 |
|
Soundness- Expansion by |
||||||
|
a) |
Le-Chatelier (mm) 10.0(max) |
5.0 (max) |
10.0 (max) |
10.0(max) |
10.0(max) |
10.0(max) |
|
b) |
Autoclave (%) |
0.8 (max) |
0.8 (max) |
0.8(max) |
0.8(max) |
0.8(max) |
|
Minimum Compressive strength (Kg/cm2) |
||||||
|
a) |
3 Days |
27 |
27 |
23 |
16 |
16 |
|
b) |
7 Days |
37.5 |
37 |
33 |
22 |
22 |
|
c) |
28 Days |
53 |
53 |
43 58 (max) |
33 48 (max) |
33 |
In CCI CEMENT quality parameters namely fineness & compressive strength are maintained 15-20% over and above the prescribed BIS specifications.
QUALITY CONTROL:
CCI is committed in supplying quality cement to its customers. To achieve this, fully equipped in house laboratories in manufacturing units keep strict control right through the manufacturing process from mining of limestone to despatch of cement. In new plants, automatic quality control is done through online X-ray analysers and computer controlled systems. Research and Development Centre has also been set up to give back-up support for operational efficiency and for technological innovations.
