Fly ash is a by-product produced while burning finely ground coal in a boiler to produce electricity. It is removed from the plant exhaust gases primarily by electrostatic precipitators or baghouses and secondarily by scrubber systems. Physically, fly ash is a very fine, powdery material, composed mostly of silica. Nearly all particles are spherical in shape. Fly ash is a pozzolan, a siliceous material which in the presence of water will react with calcium hydroxide at ordinary temperatures to produce cementitious compounds. SiO2, Al2O3, Fe2O3 and occasionally CaO are the main chemical components present in fly ashes. Fly ash significantly improves concrete performance in different ways and also provides many benefits in cement and non-cement applications. Fly Ash colour can vary from grey and dark grey, yellowish tan and light to brownish. ADVANTAGES OF FLY ASH IN CONCRETE Fly Ash is a Pozzolan Improves concrete workability and lowers water demand Sulfate and Alkali Aggregate Resistancet Rise in compressive strength over time Environment friendly CEMENTATION Fly Ash is optimized for its fineness while reducing the water demand and improving the chemical compositions to maximise its benefits when used in concrete. Fly-ash can also be used as an add-on to concrete mixture with pozzolanic and/or latent hydraulic properties. We at CEMENTATION selectively collect fly ash and subject to rigorous testing, further refines these collected materials to produce quality fly ash products meeting the needs of our customers.
Ordinary Portland Cement Clinker is the core component in producing cement which is formed by sintering limestone. In the manufacturing of Portland cement, clinker formed by sintering or fusing together without melting to the point of liquefaction, alumina-silicate materials such as clay and limestone during the cement kiln stage and happens as 3 millimeters (0.12 in) to 25 millimeters (0.98 in) in diameter, Ordinary Portland Cement Clinker is then ground to a fine powder and used as the binder in many Cementous goods. Sometimes, a little gypsum is also added. If stored in dry conditions, Cement Clinker can be kept for several months without considerable loss of quality. Because of this fact, and because it can be easily handled by ordinary mineral handling apparatus, Cement Clinker is highly traded intercontinentally in large quantities. At their cement plants, cement manufacturers which purchase clinker usually grind it as an addition to their own clinker. Producers also tend to ship their clinker to grinding plants in zones where cement-making raw materials are not available. Arij Global Trading LLC, one of the independent traders of different types of clinker, gray and white in the area, supplies tons and tons of clinker annually. Arijâ??s special performance has led us to strong partnerships with global cement manufacturers as well as end-users. The Arij Global Trading has aggressively expanded its sources for clinker as well as other related merchandises to offer the most competitive rates under both CFR and FOB terms.
Detailed Descriptions: Portland cement: 1. Standard: national standards (GB175-2007) 2. Our product range: P.C32.5/32.5R, P.O42.5/42.5R,52.5 ordinary Portland cement Packing: 2. 50kg per bag X 20 bags into a 1MT sling bag The typical performance during using: 1. Steady and high quality, low fluctuate, and rich in strength grade. 2. Good workability and adaptability with additives. 3. Long term steady in color, wide used in the construction of modest color building. 4. Low bleeding is applicable to produce concrete. 5. Freeze-proof, abrasion resistance. 6. Steady solidity ratio, the volumetric shrinkage basically reach to balance at one-year age, up to the high standard of international and domestic. 7. Meanwhile, its low slump loss meets the need of the long distance delivery of concrete-mixer. Attention: 1. Pay attention to store, and avoid moisture. 2. Cannot mix different type cement together. 3. To select certain type and grade cement reasonably. 4. Stick to pre-testing of concrete. 5. To carry out specificity testing, work out the best mix ratio.
Cement Grey Portland 42.5 General Use. Vietnam port loading CIF INCOTERMS USD 85.00 X MT 10,000 MT UP 50,000 MT MONTHLY LC 100%
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
Portland Cement and Clinker. We can afford any quantity of Portland Cement and Clinker which are used in civil engineering. We can afford different grades of Portland Cement; like: - CEM I 42.5 N - CEM I 52.5 N - CEM I 32.5 N - Clinker.
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
We OBJECTIF GROUP FRANCE products & sell all grade cement portland & clinker FOB or CIF from our own factory with 10.000 staff all buyer garde cement portland, clinker, withe cement with british standard ISO 9001
Portland cement Standard (50kg/small woven), buyer choice
We are looking to some serious buyers .We sale portland cement 42.5 max quantity is 150 000 mt /month . We accept credit letters or cash. Bags of 5o kg
We are manufacturer (factory) here in ukraine of portland cement and cement clinkers of high construction quality ! As requested by buyer
42.5 ordinary portland cement 50kg bag packing 20 ft container total 550 bag 27.5 ton 42.5 ordinary portland cement 50kg bag packing 20 ft container total 550 bag 27.5 ton
Cement portland We can to sell portland cement 32, 5-42, 5-52, 5 With genuine seller so please only genuine buyers with loi and bcl with fresh date Other proposal will be immediately destroyed
Cemento portland 32,5 grigio, cemento portland 42,5 grigio, grigio portland 52,5, grigio portland.Cif 78 mt $ per.
Portland cement.
British standard 12/1996 Euro standard en 197/2000.
Portland cement 42.5.
Email to me for the specs for cement, as well as for wood and sands
Quantity: 1, 500, 000 mt available Classification: construction - cement Description: portland cement - opc 32.5 / 42.5 / 52.5 / 62.5, all types Minimum: 500, 000 mt Maximum: 1, 500, 000 mt Specifications: british standards bs12/1996 or american standards astm c-150 or buyer specs. Pricing: varies by port, buyer quantity and specifications. Commissions: seller side closed, mediator closed. Buyer $3 open. 50k bags.
