Our company, Sandler Ltd., is looking to purchase 85, 000 metric ton of Portland cement on a one year contract and 85, 000 metric ton of clinker on a one year contract. Please see below for specifications:
PORTLAND CEMENT:
1. The standard for the cement is 42.5.
2. Packaging will be in 50 KG bags and 1, 500 KG bags.
3. The application for the cement is buildings and roads.
CLINKER:
DIN EN 196, BSS 12/1996 OR ASTM C-150
SO3 1.5 MAX
C3A < 8 MIN
C2S = 25-30%
C3S = 45-60%
FREELIME, 0.5
CHEMICAL COMPOSITION
SILICON DIOXIDE 21.00
ALUMINUM TRIOXIDE 5.30
FERRIC OXIDE 3.30
CALCIUM OXIDE 65.60
MAGNESIUM OXIDE 1.10
SULPHATE 2.70
LOSS OF IGNITION. 90
DICALCIUM SULPHATE 15.00
TRICALCIUM SULPHATE
TRICALCIUM ALUMINO 8.05
TRICALCIUM ALUMINATE FERRIC 9.76
PHYSICAL AND CHEMICAL PROPERTIES
FITNESS BY BLAIN CM/G 3250
AUTOCLAVE EXPANSION. 02
INITIAL SETTING TIME VICAT 105 MINUTES
FINAL SETTING TIME 135 MINUTES
COMPRESSIVE STRENTH @03 DAYS 230 KG/CM2
COMPRESSIVE STRENGTH @07 DAYS 305 KG/CM2
COMPRESSIVE STRENGTH @28 DAYS 420 KG/CM2
INITIAL SETTING TIME 105 MINUTES
FINAL SETTING TIME 136 MINUTES
The packaging for the clinker should be in 1500 KG bags.
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57534.[US]
美国求购波特兰水泥和粉煤渣(Portland Cement and Clinker) 
