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GREY PORTLAND CEMENT FOR CONSTRUCTION GRADE 42.5 N/R SPECIFICATIONS GREY PORTLAND CEMENT FOR CONSTRUCTION GRADE 42.5 N/R GREY PORTLAND CEMENT CONSTRUCTION GRADE 42.5 ACCORDING TO BRITISH AND SABS STANDARDS DIN EN 197-1/2000 OR ASTM C 150 With SABS Certification CHEMICAL COMPOSITION Silicon Dioxide (SiO2) 20.8 – 21.5 Aluminium Oxide (Al2O3) 5.30 Ferric Oxide (Fe2O3) 3.25 – 3.5 Calcium Oxide (CaO) 65.60 Magnesium Oxide (MgO%) 1.7 – 3.0 Sulphur Trioxide (SO3) 2.7 – 3.0 Loss Of Ignition (LOI) 1.8 – 3.0 Insoluble Residue % 0.1 – 0.7 Tricalcium Silicate (C3S%) 50.0 – 54.4 Dicalcium Silicate (C2S%) 14.2 – 18.2 Tricalcium Aluminate (C3A%) 6.0 – 6.8 Tricalcium Alumino Ferrice (C4AF%) 11.6 Chromium (Cr%) 2.0 Max. PHYSICAL AND MECHANICAL PROPERTIES Blain CM2/GR 3.250 Autoclave Expantion 0.02 Normal Consistency % 27.5 Initial Setting Time (Hours:Mins) 3.25 – 4.50 Hard Set (Hours:Mins) 4.54 – 6.00 Fitnes Index (CM2/GM) 2800-3040 COMPRESSIVE STRENGTH ISO/EN 197-1/2000 BS 4550 MORTAR @ 03 DAYS 2.65 – 34.2 KG/CM2 @ 07 DAYS 37.3 – 42.5 KG/CM2 @ 28 DAYS 52.8 – 54.6 KG/CM2 Procedure: 1.Buyer issues ICPO (Irrevocable Corporate Purchase Order) Bank Top 50. 2.Seller issues Full Corporate Offer (FCO). 3.Buyer accepts and signs FCO. 4.Seller sends Draft Contract to buyer. 5.Upon agreement on the Contract, both Buyer and Seller will sign Contract. 6.Fax or courier exchanges of hard copy of contract. 7.Within 10 (ten) banking days after receipt of the signed contract, Buyer will issue a non-operative letter of credit accordance to the contract terms. 8.Within 10 (ten) banking days Seller will post Performance Bond (PB) for the value of 2% of letter of credit to guarantee the delivery. 9.The shipment commence as per contractually agreed to schedule.
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