Cement admixture, and cement composition and concrete containing the cement admixture
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United States of America Patent
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Jan 31, 2012
Grant Date -
Jun 9, 2011
app pub date -
Feb 13, 2009
filing date -
Feb 14, 2008
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Abstract
It is an object of the invention to provide a cement admixture that can form concrete having a sufficient self-healing capability and satisfactorily maintaining its self-healing capability for prolonged periods. The cement admixture of the invention contains an expanding material and an alumina-silicate with swelling properties. The cement admixture is combined with cement to form a cement composition. The cement composition is mixed with water and an aggregate to provide concrete with an excellent self-healing capability.
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