Research on the performance of airport portland cement based on high Fe/Al ratio iron phase
This article uses industrial raw materials to prepare airport Portland cement clinker,increases the iron content by adjusting the raw material ratio,explores the influence of high Fe/Al ratio iron on the mechanical and wear resistance of cement,and uses XRD characterization to analyze the phase composition of cement clinker.The results show that the phase composition of cement clinker fired from industrial raw materials becomes C3S,C2S,C6AF2,C3A,And the content is basically consistent with the preset composition;When the design content of limestone is 79％and the calcination temperature is 1 400 ℃,the 28 d compressive strength of airport ce-ment is 89.4 MPa,and the compressive strength growth rate from 3 d to 28 d is 103.18％,which is higher than the benchmark cement;The average wear-resistant quality loss of airport cement is 0.7 kg/m2,which meets the technical requirements of the construction tech-nical specification for civil airport cement concrete surface layer(MH5006-2015).
airport cement clinkerhigh Fe/Al ratio iron phasemineral compositionmechanical propertieswear resistance
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