Coating composition for tendon for prestressed concrete
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United States of America Patent
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Issued Date -
Aug 4, 2005
app pub date -
Dec 22, 2004
filing date -
May 13, 2002
priority date (Note) -
Abandoned
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Abstract
Disclosed is a coating composition for PC tendon, which is applied on surface of the PC tendon. This composition includes epoxy resin, multifunctional isocyanate compound, calcium oxide and water, and further includes water-absorbing polymer as necessary. A curing time thereof is adjusted so that tensioning by the PC tendon can be exerted 30 days or later after casting of the concrete. Accordingly, even when applied to a massive concrete structure, the coating composition enables effective tensioning after hardening of the concrete, while exhibiting excellent storage stability.
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