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-
Minimum specific
surface-cm2/gm

370

225

225

225

300

Setting time
(Minutes)

a)

Initial-not
less than

60

30

30

30

30

b)

Final-not
more than

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 inhouse 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.

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