Improved strength and durability of concrete by bacterial carbonate precipitation
Peihao Li, Chongqi Liu, Wei Zhou
Available Online April 2015.
- https://doi.org/10.2991/icmra-15.2015.24How to use a DOI?
- Bacterial carbonate precipitation; Concrete; Compressive strength; Durability; Water absorption
- 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.
- Open Access
- This is an open access article distributed under the CC BY-NC license.
Cite this article
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 - 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 - https://doi.org/10.2991/icmra-15.2015.24 ID - Li2015/04 ER -