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| 1 | Raw mix designing,clinkerization and manufacturing of high-strength Portland cement from the limestone and clay of Darukhula Nizampur,Nowshera District,North-West Frontier Province (N.W.F.P.),Pakistan显示文摘This paper covers the detailed version of the potential raw material deposits at Darukhula and the adjacent areas of Nizampur, the manufacturing of high-strength Portland cement samples from the same material and comparison of the physical and chemical parameters for resulting cement with British and Pakistan standard specifications, which include compressive strength, setting time, consistency, lechatelier expansion, Blaine and insoluble residue. It was found that the raw material available in the study area meets the standard specifications and the area is feasible for the cement plant installation. The area can provide raw material which is quite sufficient for the running of a cement plant. | Noor-ul-Amin Tahir Shah Khurshid Ali | 2009 | Chinese Journal Of Geochemistry2009，28，3： | 1 |
| 2 | Use of clay as a pozzolona in high strength Portland cement and its thermal activation显示文摘In this investigation local clay from Cherat mines, Nowshera District, NWFP, Pakistan, has been tested as a pozzolanic material in high strength Portland cement. Thermal treatments were performed as a means of activation of the clay. It was found that thermal treatment of the clay can increase its pozzolanic activity. Different blended mortars, containing different amounts of clay, activated at different temperatures were studied for compressive strength, consistency, and setting times. It was concluded that the mechanical properties of the blended cements were mainly governed by the percentage of incorporation of the calcined clay. Blended cement composition has been for-mulated, with optimal results of 20% calcined clay at a temperature of 600℃. | Noor-ul-Amin | 2010 | Chinese Journal Of Geochemistry2010，29，2： | 0 |
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