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ultrafine grinding of cement

Mechanical grinding of steel slag is investigated and characterized using X-ray diffraction and size analyzer. The results indicate that the obtained ultrafine powders contain active mineral phases suitable for ordinary Portland cement (OPC)-Ca(OH)2, 2CaO SiO2, 2CaO Fe2O3. We have proved and first pointed out that the steel slag induces phase transition during grinding process and the Blaine ...May 22, 2010 The ultrafine fly ash continues to increase the strengths and decrease the permeability as the concrete continues to cure beyond 28 and 56 days. This benefit was shown on the I-10 project through additional testing as the permeability dropped on some of the samples to as low as 150 coulombs. In addition, the use of an ultrafine fly ash for ...

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