|
Tata
Chemicals Limited manufactures Ordinary Portland
Cement (OPC) at its state-of-the-art manufacturing
plant located at Mithapur. The cement manufacturing
process involves burning of limestone and other
siliceous material at a very high temperature
of 1400 degrees C and then grinding the resulting
clinker with gypsum. The end product thus obtained
is called Ordinary Portland Cement.
Tata
Chemicals manufactures Ordinary Portland Cement
in two grades:
1. Ordinary Portland Cement — Grade-53
2. Ordinary
Portland Cement — Grade-43
Grade-53
is a very superior quality of cement (conforming
to IS:12269:1987) used for critical and heavy
structures like bridges, multistorey buildings,
foundations and heavy and load bearing structures
requiring typical and critical construction requirements.
Quality
standards:
OPC - Grade-53 is manufactured by grinding
a superior quality of clinker at a fineness of
more than 3200 cm2/gm. The cement has
an initial setting time of around 110 minutes
and final setting time of 190 minutes. It gives
a compressive strength of more than 580 kg/ cm2
after 28 days of curing (as per BIS standards
for the testing of compressive strength).
Best
results:
Since Tata Chemicals Limited's OPC-Grade-53
cement is a superior quality high strength cement,
it should be used wherever specified and under
the advice and supervision of a structural engineer
/ expert technician to obtain optimum results.
It is very important to pay attention to the required
cement content, workability and right water-cement
ratio, proper placement and compaction with adequate
curing for the required time period to obtain
the best results.
Availability:
Tata
Chemicals Limited's Ordinary Portland Cement-Grade-53
is preferred by its customers because of its superior
and consistent quality and availability through
a well-knit distribution network across the state
of Gujarat. The company is dedicated to serve
its customers by supplying this high quality cement
as per their specific needs.
|
Specifications
|
Ordinary
Portland Cement: Requirement of IS:12269:1987
|
Test
results
|
Fineness
(Cm2/gm)
Specific surface |
2,250
minimum |
3,000
- 3,300 |
|
Setting
time (minutes) |
. |
|
| Initial |
30
minimum |
90
- 120 |
| Final |
600
minimum |
185
- 215 |
Compressive
strength (kg/cm2)
(Cement: sand mortar cubes) |
|
|
| 3
days |
270
minimum |
350
- 390 |
| 7
days |
370
minimum |
440
- 480 |
| 28
days |
530
minimum |
550
- 600 |
Packing:
50-kg PP bags.
For more information about this product or
to place orders, please contact:
Kamal
Garg at kgarg@tatachemicals.com
|
