Journal Published Online: 15 July 2019
Volume 8, Issue 3

The Effect of Nano-SiO , Nano-Al O , and Nano-Fe O on the Compressive Strength and Workability of Magnesium Phosphate Cement-Based Mortar

CODEN: ACEMF9

Abstract

Magnesium phosphate cement (MPC) possesses many excellent engineering properties. The applications of MPC as a repair and quick-construction material have received significant research attention in recent years. The effects of nano-silicon dioxide, nano-aluminum oxide (Al2O3), and nano-iron oxide (Fe2O3) on the compressive strength and the fluidity of the MPC-based mortar are experimentally investigated in this study. The micromorphology and composition of the MPC-based mortar with nanoparticles were captured using scanning electron microscopy and X-ray diffraction, respectively. It was found that the addition of the nanoparticles significantly shortened the setting time of MPC and decreased the fluidity of the MPC-based mortar. The addition of the appropriate amount of nano-Fe2O3 and nano-Al2O3 improved the compressive strength of the MPC-based mortar. The optimal replacement ratios of the nano-Fe2O3 and nano-Al2O3 were 2 % and 4 %, respectively. The reaction product of aluminum phosphate x-hydrate (AlPO4 xH2O) was found in the MPC matrix with the addition of nano-Al2O3, which improved the compressive strength of the MPC-based mortar.

Author Information

Feng, Hu
School of Civil Engineering, Zhengzhou University, Zhengzhou, Henan, China
Wang, Zhenyu
School of Civil Engineering, Zhengzhou University, Zhengzhou, Henan, China
Sheikh, M. Neaz
School of Civil, Mining, and Environmental Engineering, University of Wollongong, Wollongong, New South Wales, Australia
Zhao, Xiaocong
School of Civil Engineering, Zhengzhou University, Zhengzhou, Henan, China
Gao, Danying
School of Civil Engineering, Zhengzhou University, Zhengzhou, Henan, China
Hadi, Muhammad N. S.
School of Civil, Mining, and Environmental Engineering, University of Wollongong, New South Wales, Australia
Pages: 17
Price: $25.00
Related
Reprints and Permissions
Reprints and copyright permissions can be requested through the
Copyright Clearance Center
Details
Stock #: ACEM20190014
ISSN: 2379-1357
DOI: 10.1520/ACEM20190014