9781605730097
Autogenous healing of concrete in the drinking water industry.
Parks, Jeffrey et al.
American Water Works Assn.
2008
82 pages
$299.00
Paperback
TD459
Despite concerns about the public health and economic consequences
of deteriorating concrete in the drinking water infrastructure, the
phenomenon of autologous healing in which cracks in concrete surfaces
repair themselves through reactions to certain water constituents has
been little studied. In a study sponsored by the Awwa Research
Foundation, Parks and colleagues (civil and environmental engineering,
Virginia Polytechnic Institute and State U.) utilized a new simulation
technique to examine the effect of water chemistry, precipitates
responsible for this self-healing, and the strength of the
"glue" that forms on the cracked surfaces and its ability to
prevent chloride diffusion. They make recommendations on conditions that
enhance or impede autologous repair. The report includes data tables,
raw data, and digital images of specimens tested.
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