Improved strength and durability of concrete by bacterial carbonate precipitation

DOI

10.2991/icmra-15.2015.24How to use a DOI?

Keywords

Bacterial carbonate precipitation; Concrete; Compressive strength; Durability; Water absorption

Abstract

Bacterial induced carbonate precipitation has led to the exploration of improvement technique about strength and durability of concrete. The aim of this study was to investigate the effects of bacterial carbonate precipitation on strength and the durability of concrete specimens. The influence of bacterial induced precipitation on concrete strength was studied through compressive strength test. Water absorption and the resistance towards carbonation of concrete were analyzed by water absorptivity test and concrete accelerated carbonation test, respectively. Experimental results show that bacterial induced carbonate precipitation is able to make the improvement in concrete compressive strength. Bacterial induced calcite precipitation on the surface of concrete specimens result in a decrease of capillary water uptake and carbonation rate constant, and an increase in resistance towards degradation processes.

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  - Peihao Li
AU  - Chongqi Liu
AU  - Wei Zhou
PY  - 2015/04
DA  - 2015/04
TI  - Improved strength and durability of concrete by bacterial carbonate precipitation
BT  - Proceedings of the 3rd International Conference on Mechatronics, Robotics and Automation
PB  - Atlantis Press
SP  - 119
EP  - 122
SN  - 2352-538X
UR  - https://doi.org/10.2991/icmra-15.2015.24
DO  - 10.2991/icmra-15.2015.24
ID  - Li2015/04
ER  -