Research on the influence of a new kind of admixture on the property of shotcrete

DOI

10.2991/meic-15.2015.24How to use a DOI?

Keywords

concrete admixture; shotcrete; roadway support

Abstract

A new kind of admixture for the shotcrete was proposed, its main ingredient is silica fume (61.3%) and bentonite (38.3%), plus a small amount of polyacrylic acid (0.4%). The influences of the admixture on the liquidity of shotcrete were studied, it is results that: 1) with the increase of the cement content, the workability of the shotcrete improves significantly; 2) with the increase of admixture dose, the bleeding rate significantly decreases; 3) after adding admixture, the anti-segregation capabilities are mostly above 95%. Even if the shotcrete with admixture added in has high fluidity, it also has good anti-segregation capability; 4) the shotcrete before adding admixture has much dust around while the dust is obviously decreased after adding admixture.

Copyright

© 2015, 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  - Zi-bo Tang
AU  - Xianjun Tan
PY  - 2015/04
DA  - 2015/04
TI  - Research on the influence of a new kind of admixture on the property of shotcrete
BT  - Proceedings of the 2015 International Conference on Mechatronics, Electronic, Industrial and Control Engineering
PB  - Atlantis Press
SP  - 97
EP  - 100
SN  - 2352-5401
UR  - https://doi.org/10.2991/meic-15.2015.24
DO  - 10.2991/meic-15.2015.24
ID  - Tang2015/04
ER  -