Constituent phases and mechanical properties of iron oxide-additioned phosphoaluminate cement

Shuai Yang; Shoude Wang; Chenchen Gong; Lingchao Lu; Xin Cheng

doi:10.3989/mc.2015.02214

Autores/as

Shuai Yang Shandong Provincial Laboratory for the Preparation and Measurement of Building Materials, University of Jinan
Shoude Wang Shandong Provincial Laboratory for the Preparation and Measurement of Building Materials, University of Jinan
Chenchen Gong Shandong Provincial Laboratory for the Preparation and Measurement of Building Materials, University of Jinan
Lingchao Lu Shandong Provincial Laboratory for the Preparation and Measurement of Building Materials, University of Jinan
Xin Cheng Shandong Provincial Laboratory for the Preparation and Measurement of Building Materials, University of Jinan

DOI:

https://doi.org/10.3989/mc.2015.02214

Palabras clave:

Cemento de fosfoaluminato, Fase ferrítica, Constituyentes de fase, Comportamiento mecánico

Resumen

Este trabajo estudia, mediante DRX DSC, SEM-EDS y calorimetría de conducción, el efecto de la adición de óxido de hierro a un clinker de fosfoaluminato, así como las variaciones sufridas en su resistencia a compresión. Los resultados mostraron que en cantidades moderadas, el óxido de hierro actúa como mineralizador durante la sinterización del clinker, promoviendo la conversión de CA_1-Y(P_Y) a LHss a una temperatura más baja de la normalmente requerida. Los componentes principales del clínker de fosfoaluminato con óxido de hierrop son LHss, CA1-Y(PY), CP_1-Z(A_Z) y fase ferritica. Los resultados de EDS mostraron que la composición de esta fase ferrítica no era uniforme. DE este estudio se ha podido concluir que variando la dosificación del Fe₂O₃) , se puede controlar la composición del fosfoaluminato para producir clinker y cemento compatibles con diferentes requisitos de resistencia mecánica. Los resultados de calorimetría de conducción fueron consistentes con los resultados.

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