#zuaricement

Portland Slag Cement (PSC) is manufactured by either inter-grinding within the hydraulic cement clinker, Gypsum & Granulated Slag or mixing the bottom Granulated furnace Slag (GGBS) with Ordinary hydraulic cement by means of mechanical blenders. it's created with a mix of 45- 50% slag, 45% & 50% clinker, and 3-5% gypsum. Portland slag cement is that the best suited cement for concrete paths, mass concrete uses, structures and bases, Pre-cast concrete, concrete hospitable seawater and oceanic use.

All compositions produce high ultimate strength, but as slag content is increased, initial strength is reduced, while sulfate resistance upsurges and warmth evolution moderates. The hydration of slag is initiated when lime liberated within the hydration of hydraulic cement provides the right alkalinity; later hydration doesn't depend upon lime.

Physical requirements: • the precise surface (fineness) of slag cement shall not be but 225 m2/kg.

• Portland slag cement shall not have an expansion of quite 10 mm and 0.8 percent respectively.

• Initial setting time shall not be but half-hour and therefore the final setting time shall not be but 600 minutes.

• Compressive strength shouldn't be but 16 Mpa after 3 days, 22 Mpa after 7 days, 33 Mpa after 28 days.

Advantages of PSC Cement: • High compressive strength

• High resistance to chloride and sulfate

• Good work-ability

• Good resistance against alkali-silica reaction

• Low risk of cracking

• Superior finish

Applications: • Marine and off-shore structures

• disposal treatment works

• Water treatment plants

• Precast concrete products

• Concrete roads and flyovers

• Bridges and Dams

• Foundation constructions

Cement, generally , adhesive substances of all types , but, during a narrower sense, the binding materials utilized in building and engineering construction. Cements of this type are finely ground powders that, when mixed with water, set to a tough mass. Setting and hardening result from hydration, which may be a chemical combination of the cement compounds with water that yields submicroscopic crystals or a gel-like material with a high area . due to their hydrating properties, constructional cements, which can even set and harden under water, are often called hydraulic cements. the foremost important of those is hydraulic cement .

When you are putting all of your blood, sweat and tears into your construction project, you would like to form sure that you simply are working with the simplest material you'll find. it's crucial for each builder and contractor to see the standard of the cement getting used on the location during the time of preliminary inspection. If good cement isn't used, then the standard of the whole construction is at stake. the general strength of your structure depends on many factors, and therefore the quality of cement you're using is one among them. Excellent quality cement should be wont to achieve desired strength of concrete and to form sure the structure stands tall for an extended time.

So, how do i check the standard of cement being used?

Following are some easy tests to be used.

1) Date of Packing – Unlike wine, the strength of cement getting used decreases with time. Cement should be used before 90 days from the date of manufacture. A year after manufacture, the strength of the cement is reduced by 40-50%.

2) Colour of Cement – Good cement is usually uniform in colour. you'll identify good cement by its gray colour with a small green shade.

3) Lumps – In cement, lumps are formed thanks to absorption of moisture. Good cement has no lumps.

4) Temperature – If you push your hand inside a bag of excellent cement, you ought to feel a particular coolness. Bad cement feels warm in your hand.

5) Floating – Good quality cement floats in water for a few time before sinking.

Always confirm to shop for the simplest quality of cement available.

Maha Cement, with its attention to detail and world-quality upkeep and process, is understood to be the simplest cement in India. For stability, trust and quality, always accompany Maha Cement.