System and method for internal pressurized gas drying of concrete
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United States of America Patent
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Dec 5, 2017
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N/A
app pub date -
Oct 4, 2013
filing date -
Oct 5, 2012
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Abstract
A system and method are disclosed for lowering the internal relative humidity inside of a concrete structure by applying a pressurized gas and forcing such pressurized gas into the concrete structure, in turn driving moisture in the pores of the concrete to the exterior of the structure. Pressurized gas is supplied to a network of sealed cavities extending into the face of the concrete structure, ultimately causing the gas to move into the concrete structure through pores and capillaries through the structure, in turn driving moisture in the concrete structure toward the surface. Optionally, a competitive inhibiting agent, such as lithium nitrate, may also be provided to stabilize the concrete structure against future deleterious expansions caused by moisture uptake in the existing ASR gel.
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