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

DOI

10.2991/ifeesm-17.2018.48How to use a DOI?

Keywords

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

Abstract

In order to study the influence rule and mechanism of iron ore tailing powder(IOTP) replacing cement in UHPC, the influences of different specific surface area and dosage of IOTP replacing cement 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 less than 10%, proper specific surface area of IOTP can improve the strength, pore structure and hydration products structure of UHPC. However, when alternative content of IOTP is more than 15%, it shows up an inverse pattern.

Copyright

© 2018, 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  - Lin Yang
PY  - 2018/02
DA  - 2018/02
TI  - Preparation of UHPC with cement replaced by rich-silicon iron ore tailing powder
BT  - Proceedings of the 2017 3rd International Forum on Energy, Environment Science and Materials (IFEESM 2017)
PB  - Atlantis Press
SP  - 254
EP  - 260
SN  - 2352-5401
UR  - https://doi.org/10.2991/ifeesm-17.2018.48
DO  - 10.2991/ifeesm-17.2018.48
ID  - Yang2018/02
ER  -