Preparation of UHPC with micro-bead replaced by rich-silicon iron ore tailing powder

DOI

10.2991/iccte-17.2017.19How to use a DOI?

Keywords

IOTP; UHPC; strength; fluidity, pore structure; hydration products morphology

Abstract

In order to study the influence rule and mechanism of rich-silicon iron ore tailing powder(IOTP) replacing micro-bead in UHPC, the influences of different specific surface area and dosage of IOTP replacing fly ash on its strength and liquidity were tested. Moreover, the pore structure and hydration products morphology of UHPC were tested by MIP and SEM, respectively. The results show that IOTP can increase the liquidity of UHPC, when alternative content of IOTP is 5% and specific surface area is higher than 801m2/kg can improve the strength, when specific surface area is 801m2/kg and alternative content of IOTP is no more than 10% can improve pore structure. However, when alternative content of IOTP is more than 15%, all of these properties are worse.

Copyright

© 2017, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Song Liu
AU  - Zhigang Zhu
AU  - Shunkai Li
PY  - 2017/07
DA  - 2017/07
TI  - Preparation of UHPC with micro-bead replaced by rich-silicon iron ore tailing powder
BT  - Proceedings of the 2017 2nd International Conference on Civil, Transportation and Environmental Engineering (ICCTE 2017)
PB  - Atlantis Press
SP  - 113
EP  - 118
SN  - 2352-5401
UR  - https://doi.org/10.2991/iccte-17.2017.19
DO  - 10.2991/iccte-17.2017.19
ID  - Liu2017/07
ER  -