Portland (constructional) Cement is a fine powder mixture of various minerals. It is produced by mixing calcareous minerals such as chalk, limestone containing silica and alumina and heating it to 1450 deg C when it cools a clinker is formed. This clinker is then finely ground and mixed with small quantity 3-5% of gypsum which has calcium sulphate in it. The amount of gypsum controls the physical properties of the eventual concrete. Sometimes very minute quantities of pigments are also added. Cement producing processes do however vary. TYPES OF PORTLAND CEMENT: - OPC Ordinary Portland Cement - Rapid Hardening Portland Cement - Sulphate Resisting Portland Cement - Low Heat Portland Cement - White Portland Cement PACKING: - 50 Bags (Paper or Poly bags) - 1.5 tonne bags - 2 tonne bags - Bulk/Loose
Chemical analysis: Items/ Indexes National Standard Internal controlled indexes Cement MgO (%) 5.0 3.80 Cement SO 3 (%) 3.5 2.30 Cement loss on ignition (%) 5.0 2.01 Cement fineness (%) 10.0 1.00 Setting time (min) 45 190 Final setting time 600 245 Strength(MPa) 3-day compressive strength 24.0 25.30 3-day bending strength 4.0 5.1 28-day bending strength 6.5 7.2 28-day compressive strength 42.5 47.5
Supplied in 2 Variants : PCB 40 White in 50 kg bag and PCB 50 Grey in 750 kg Jumbo Sling bag. Equivalent Standard : BS EN 197-1: 2000 42.5R and ASTM C150 Type 1.
High-quality Portland cement Type: I-42.5, I-52.5, II are available. Origin: Iran FOB: any port of Iran Packing: 25x KG - 50 x KG Bags, 1xTON Jumbo Bag, Bags in Jumbo, Bulk Packing
Portland cement is the most common type of cement in general use around the world as a basic ingredient of concrete, mortar, stucco, and non-specialty grout. It was developed from other types of hydraulic lime in England in the mid 19th century, and usually originates from limestone Origins : nigeria,china ,iran ,ghana, italy, india
Portland cement is the most common type of cement in general use around the world as a basic ingredient of concrete, mortar, stucco, and non-specialty grout. It was developed from other types of hydraulic lime in England in the mid 19th century, and usually originates from limestone Origins: Iran,pakistan,malaysia,portland
Portland cement 42. is widely used in construction , civil engineering and highway building. Our portland 42.5 cement meets the requirement of GB175-1999 of China and is widely welcome in both domestic and foreign customers. Our product meets the ISO 9001 and win a lot of honor in the fiedl of building materials. Welcome to choose our product wich has best property and price proportion.
Items/ index P. O 42.5 P. O 42.5r Cement mgo (%) 5.0 4.0 5.0 4.0 Cement so3 (%) 3.5 3.0 3.5 3.0 Cement loss on ignition (%) 5.0 4.0 5.0 4.0 Cement fineness (%) 10.0 4.0 10.0 4.0 Setting time (min)Initial setting time ,45 ,60 ,45 ,60 Final setting time 600 270 600 270 Soundness Qualified Qualified Qualified Qualified Strength 50kgs per bag