Influence of Different Varieties of Water Reducing Agent on the Early Cracking of Concrete

DOI

10.2991/emeit.2012.125How to use a DOI?

Keywords

water reducing agent, concrete, cracking, flat-panel test method, limiting shrinkage

Abstract

Early cracking performance of concrete incorporating five different varieties of water reduce agent was tested by flat-panel test method and concrete surface cracks were observed within 24hours after pouring of concrete. The results showed that crack resistance of concrete incorporating polycarboxylate-based water reducer (PC) was the best, the anti-cracking grade of concrete was Grade. Followed by those concrete incorporating resin water reducing agent, melamine (SM), naphthalene-based water reducer and aliphatic water reducer, the anti-cracking grade of concrete were all Grade. Sodium lignosulfonate had greater impact on the early cracking resistance of concrete, initial cracking time earlier and the number of cracks per unit area of concrete greater within 24h. The anti-cracking grade of concrete with it was Grade.

Copyright

© 2012, 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  - Jingyun Han
AU  - Xuyan Song
AU  - Ruyuan Xu
PY  - 2012/09
DA  - 2012/09
TI  - Influence of Different Varieties of Water Reducing Agent on the Early Cracking of Concrete
BT  - Proceedings of the 2nd International Conference on Electronic & Mechanical Engineering and Information Technology (EMEIT 2012)
PB  - Atlantis Press
SP  - 594
EP  - 597
SN  - 1951-6851
UR  - https://doi.org/10.2991/emeit.2012.125
DO  - 10.2991/emeit.2012.125
ID  - Han2012/09
ER  -