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Portland Cement Requirement

HOt Products

Are You Ready for the New MACT Requirements for Portland

Dec 16, 2014 Portland cement is the most common type of cement in the world. It is used primarily to make concrete, mortar, and grout. Portland cement is made by grinding raw materials that include limestone, clay, and bauxite to a fine powder, called raw meal, which is then heated in a rotating kiln to a sintering temperature as high as 1450 °C.

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Preventing Skin Problems from Working with Portland Cement

Employees who work with portland cement are at risk of developing skin problems, ranging from mild and brief to severe and chronic. Wet portland cement can damage the skin because it is caustic, abrasive, and absorbs moisture. Portland cement also contains trace amounts of hexavalent chromium [Cr(VI)], a toxin harmful to the skin.

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Standard Specification for Application of Portland Cement

4.1 Materials shall conform to the requirements of the specified herein. 4.2 Cement: 4.2.1 Portland Cement—Specification C150, Type I, II, and III, as specified. White where specified. 4.2.2 Air-Entraining Portland Cement—Specification C150, type as specified. White where specified. 4.2.3 Masonry Cement—Specification C91, Types N, S, and

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ITEM 501.01000001 PORTLAND CEMENT CONCRETE

Type I/II cement is defined as a cement that meets the requirements of both Type I and Type II cements. High alkali cement is defined as any Portland cement having an alkali content in excess of 0.70% as denoted on the Approved List. High alkali cement use is restricted, unless otherwise

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Portland Cement Requirement