Effect of Iron Oxide Red Pigment on Rheological Property and Printability of 3D Printed White Portland Cement-Based Materials

Abstract

Abstract: Recently, most of the research on 3D printing technology in the field of architectural decoration focuses on the rheological property of materials and the mechanical properties of materials, while the study of its decorative effect is still few. In this paper, iron oxide red pigment was introduced into 3D printed white Portland cement-based materials for dyeing. The effects of iron oxide red pigment on the rheological property, printability, and mechanical property on 3D printed white Portland cement-based materials were studied. The experimental results show that the low pigment content can reduce the dynamic rheological property of the 3D printed white Portland cement-based materials and improve the extrusion performance of the paste, while the high pigment content is not conducive to the extrusion of the paste. Besides, the addition of iron oxide red pigment can significantly increase the static yield stress of the paste and reduce the structural deformation rate from 11.38% to 4.03%. At the same time, the addition of iron oxide red pigment can improve the early mechanical properties of the paste, and the 3 d maximum compressive strength and flexural strength of the paste can reach 48.56 MPa and 5.07 MPa, respectively. In general, the introduction of iron oxide red pigment can improve the deformation rate of paste through the regulation of rheological properties.

Key words: 3D printing, white Portland cement, pigment, rheological property, printability, mechanical property

CLC Number:

TQ172

XU Jiabin, JIN Yuan, ZHAO Zhihui, CHEN Mingxu, LU Lingchao, CHENG Xin. Effect of Iron Oxide Red Pigment on Rheological Property and Printability of 3D Printed White Portland Cement-Based Materials[J]. BULLETIN OF THE CHINESE CERAMIC SOCIETY, 2021, 40(6): 1863-1869.

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