OS GSO 1914:2009

Omani Standard   Historical
Approved on  11 February 2009

Portland Cement

Construction materials
Including sustainability of construction materials

OS GSO 1914:2009 Files

Arabic 17 Pages
Historical Reference Language
15.0 OMR
English 13 Pages
Historical
13.0 OMR

OS GSO 1914:2009 Scope

This GSO standard is concerned with the following eight types of Portland cement: 1. Type I cement (ordinary) - for use when the special properties specified for any other type are not required. 2. Type IA – Air-entraining cement for the same uses as type I, where air-entrainment is desired. 3. Type II cement - For general purposes, more especially when moderate sulphate resistance or moderate heat of hydration is desired. 4. Type IIA – Air-entraining cement for the same uses as type II, where airentrainment is desired. 5. Type III – For use when high early strength is desired. 6. Type IIIA – Air-entraining cement for the same use as type III, where airentrainment is desired. 7. Type IV – For use when a low heat of hydration is desired. 8. Type V – For use when high sulphate resistance is desired. Common cements are grouped in the European standard EN 197-1:2000 into (5) major types according to composition. Further they are further divided into (2) major classes according to pressure resistance as stipulated in tables (1) and (2) referred to in Attachment (1).

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