Hydration study of ordinary portland cement in the presence of zinc ions

Materials Research

Monica Adriana Trezza¹ 

[1] ,Universidad Nacional del Centro de la Pcia. de Bs. As. Facultad de Ingeniería Buenos Aires,Argentina

关键词: Portland cement;    infrared spectroscopy;    X ray diffraction;    zinc;   

DOI  :  10.1590/S1516-14392007000400002

来源: SciELO

【 摘 要 】

Hydration products of Portland cement pastes, hydrated in water and in the presence of zinc ions were studied comparatively at different ages. Hydration products were studied by X ray diffractions (XRD) and infrared spectroscopy (IR). Although IR is not frequently used in cement chemistry, it evidenced a new phase Ca(Zn(OH)3)2. 2H2O formed during cement hydration in the presence of zinc. The significant retardation of early cement hydration in the presence of zinc is assessed in detail by differential calorimetry as a complement to the study carried out by IR and XRD, providing evidence that permits to evaluate the kinetic of the early hydration.

【 授权许可】

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