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 22.01.2012 |
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LAUNCHING OF ISO 14000 & 18000 MANAGEMENT SYSTEM |
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15.11.2011 |
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KARCEMENT Notice 15.11.2011 |
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more... |
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15.11.2011 |
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20.06.2011 |
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Please check new SKYPE contacts... |
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28.05.2008 |
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20.04.0009 |
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29.10.0008 |
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Successful Light Up & Commissioning of Line 6 |
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19.12.0007 |
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Progress photos (December 2007) |
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08.08.0007 |
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Hereby, Karcenet JSC would like to inform all interested persons about conclusion of the following major transactions..... |
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12.07.0007 |
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Progress Photos 30th June 2007 |
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17.04.0006 |
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28.02.0006 |
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Steppe Cement Limited
Major contract for cement line refurbishment awarded to FL Smidth
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15.02.0006 |
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Steppe Cement Ltd has successfully completed the placement of $21 million raised through the issuing of 14 million shares priced at $ 1.50 each |
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22.12.0005 |
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Signing USD35 million long- term loan with EBRD on 12 December 2005 in Astana |
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 Marketing types of cement
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 Portland Cement 400 A20
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GOST 10178-85
Chemical and Mineralogical Properties of Clinker, %
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Magnesium Oxide (MgO) |
0,30-0,70 |
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Insoluble Residue |
0,10-0,25 |
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Loss of Ignition |
0,01-0,20 |
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Total Alkalies(expressed as Na2O) |
0,14-0,26 |
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Tricalcium Silicate (C3S) |
58-62 |
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Dicalcium Silicate (C2S) |
15-19 |
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Tricalcium Aluminate (C3A) |
7,5-9,5 |
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Tetracalcium Aluminoferrite (CAF) |
12-14 |
Physical and Mechanical Properties of Cement
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Grinding Fineness, passed sieve #008 (80 micron),% |
89-95 |
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Setting Times, minutes: |
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ininitial |
110-150 |
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final |
220-260 |
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Uniformity of Volume Change when Boiled in Water |
stands the test |
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W/C Ratio |
0,38-0,40 |
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Activity when Steamed, Mpa |
27,0-32,0 |
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Ultimate Strength, Mpa: |
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flexural: |
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3 days |
4,2-4,8 |
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28 days |
7,0-7,7 |
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compressive: |
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3 days |
23,0-25,0 |
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28 days |
42,0-47,0 |
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Active Mineral Additives (slag) Content, % |
16-20 |
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Sulfate (expressed as SO3) |
1,90-2,50 |
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Radioactive Safety |
Active factor = 60 Bq/kg |
Read also:
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