A Case Study: Bacterial Surface Treatment of Normal and Lightweight Concrete
作者： H. K. Kim , H. K. Lee
DOI: 10.1007/978-3-319-09287-4_16
关键词: Materials science 、 Durability 、 Composite material 、 Precipitation (chemistry) 、 Coating materials 、 Environmentally friendly 、 Moisture 、 Calcium carbonate 、 Cement 、 Polymer
摘要: Bacterial surface treatments for concrete have become increasingly popular due to their strong potential improve the durability of structures practical usage. Compared bacteria inoculated into cement matrix, it is easier provide proper environment when are applied onto concrete. Moreover, bacterial treatment method has a number advantages in comparison with conventional methods using polymer-based coating materials, including water repellents or pore-blockers. Three as follows: (1) similar thermal expansion property between microbially precipitated calcium carbonate and surface, (2) environmentally friendly characteristics, (3) self-healing. A treatment, especially lightweight concrete, very important ensure good durability, generally lower than that normal In present chapter, previous work authors, study (Kim et al. 2013) reviewed summarized. The surfaces specimens were treated liquid medium containing bacteria. Macro- micrographic assessments done analyze shapes distribution crystals. capillary absorption was measured evaluate effects precipitation on moisture transport properties, these properties thought affect
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