What is a clinker used for?
Clinker is primarily used to produce cement. Since it can be stored in dry condition for several months without noticeable deterioration, it is traded internationally in large amounts. Cement manufacturers buy clinker for their cement plants in areas where raw materials for cement are scarce or unavailable.
What is known as clinker?
Clinker is the backbone of cement production. It is essentially a mix of limestone and minerals that have been heated in a kiln and have been transformed by this heat. When limestone is converted to clinker, CO2 is released (also known as process emissions).
What does clinker look like?
Clinker is a nodular material produced in the kilning stage during the production of cement and is used as the binder in many cement products. The lumps or nodules of clinker are usually of diameter 3-25 mm and dark grey in color.
What makes a clinker?
Clinker occurs as lumps or nodules, usually 3 millimetres (0.12 in) to 25 millimetres (0.98 in) in diameter. It is produced by sintering (fusing together without melting to the point of liquefaction) limestone and aluminosilicate materials such as clay during the cement kiln stage.
What is clinker in construction?
Broadly, clinker refers to a stony residue resulting from burning coal or from a furnace. It is a common component of aggregates, Portland cement, brickwork, blockwork, paving and so on.
Where is clinker found?
Clinker is the most common rocktype found in burning coal mining dumps and is usually red or pink, less commonly yellow or white in colour. It is usually composed of quartz, feldspars, mica and minor mullite.
What is the difference between cement and clinker?
Clinker is a nodular material which is used as the binder in cement products. Cement is a binding agent that sets and hardens to adhere to building units such as stones, bricks, tiles etc. Clinker is a granular substance containing spherical pellets of diameter 3-25 mm.
Is clinker hazardous?
WARNING! CONTACT WITH WET OR DRY PORTLAND CEMENT CLINKER IS DANGEROUS AND MAY CAUSE SEVERE SKIN IRRITATION, CHEMICAL BURNS, AS WELL AS DAMAGE TO HUMAN TISSUE, INCLUDING EYES AND OTHER ORGANS. IN ADDITION, BREATHING CEMENT CLINKER DUST OVER A PERIOD OF TIME MAY IN SOME CASES RESULT IN CANCER AND OTHER DISEASES.
What is released during the production of clinker?
Correct choice is (b) CO2. The best explanation: Specifically, CO2 is released during calcination of limestone, which goes on to form clinkers ahead. It occurs in upper, cooler end of kiln (precalciner) at temperatures of 600-900^oc.
What is cement clinker Class 11?
A powdery substance made by calcining lime and clay, mixed with water to form mortar or mixed with sand, gravel and water to make concrete.
What is cement clinker Class 10?
Paste formed by mixture of powdered form of the limestone and clay along with water to obtain a paste is called slurry. The red colored pea sized balls of calcium silicate and calcium aluminate formed by heating slurry is called cement clinkers.
What is white clinker?
White Portland Clinker or White Ordinary Portland Clinker is resembling Ordinary Gray Portland Cement in all features except for its high grade of whiteness. In white cement, the index of whiteness is a very significant parameter to be controlled.