Field Tests for Cement The Following are the Field Tests for Cement that are carried out inorder to ascertain the quality of Cement, (1) Colour (2) Physical properties (3) Presence of lumps (4) Strength. (1) Colour: The colour of cement should be uniform. It should be typical cem...
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White Cement The first white cement factory was set up in Kottayam, Kerala by Travancore Cement Limited (TCL) in 1956 and the cement was sold under the brand name Vembanad Cement. Few more plants have now been put up for the manufacture of white cement in our country. White cemen...
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Sulphate Resisting Cement Sulphate Resisting Cement, as the name indicates these cements are used inorder to resist sulphate action. Ordinary PPC cement is unable to resist sulphate attacks. These cements contain calcium hydroxide and hydrate of calcium aluminium and these reacts...
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Extra Rapid Hardening Cement Extra rapid hardening cement accelerates the setting and hardening process. It imparts strength of about 25 % higher than that of rapid hardening cement at one or two days about 10% to 20% higher at 7 days. The gain of strength disappears with the age...
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Rapid Hardening Cement Rapid Hardening Cement, as the name indicates these type of cement gains high strength in early days. But, the initial and final setting time of Rapid Hardening Cement is same as that of ordinary PPC cement. These cements have about 56% of tricalcium silica...
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Quick Setting Cement Quick Setting Cement as the name indicates, these types of cements are used where quick setting is needed. The quick setting cement is manufactured by adding a small percentage of aluminium sulphate and then it is finely grinded with cement. And also for quic...
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Portland Pozzolana Cement (PPC) Portland Pozzolana Cement also commonly known as PPC cement. These types of cement are manufactured by using pozzolanic materials as one of the main ingredient. The percentage of pozzolanic material used in the preparation should be between 10 to 3...
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Low Heat Cement Low Heat Cement as the name indicates these type of cement is used inorder to reduce the amount of heat evolved during setting. But how the heat evolved during setting can be reduced ? Yes, the heat during setting can be reduced by lowering the percentage o...
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The Expanding cement is produced by adding an expanding medium like sulpho-aluminate and a stabilising agent to the ordinary cement. Hence this cement expands whereas other cements shrink. The expanding cement is used for the construction of water retaining structures and also fo...
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Coloured Cement Coloured Cement may be obtained by intimately mixing mineral pigments with ordinary cement. The amount of colouring material may vary from 5 to 10 per cent. If this percentage exceeds 10 per cent, the strength of cement is affected. The chromium oxide gives gree...
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