Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Anticorrosion and rust resistant type post-tensioned prestressed duct grouting material and preparation method thereof
The invention relates to an anticorrosion and rust resistant type post-tensioned prestressed duct grouting material and a preparation method thereof. The grouting material comprises cement, an expanding agent, mineral powder, a water reducing agent, a retarding agent, a rust inhibitor, a preservative, carboxymethyl cellulose and a defoaming agent, etc. The water-glue ratio is 0.28, cement mortar mixer slow speed stirring is employed, and then 1000r/min rapid stirring is carried out so as to obtain the product. The grouting material provided by the invention has the characteristics of good slurry flow performance, no layering, no water bleeding, fullness, no shrinkage after hardening, and high strength, is conducive to protecting prestressed reinforcement from being rusted and prolonging the service life of a prestressed bridge structure, is especially suitable for post-tensioned prestressed duct grouting in the northwest and coastal areas, and has anticorrosion and rust resistant functions.
Anticorrosion and rust resistant type post-tensioned prestressed duct grouting material and preparation method thereof
The invention relates to an anticorrosion and rust resistant type post-tensioned prestressed duct grouting material and a preparation method thereof. The grouting material comprises cement, an expanding agent, mineral powder, a water reducing agent, a retarding agent, a rust inhibitor, a preservative, carboxymethyl cellulose and a defoaming agent, etc. The water-glue ratio is 0.28, cement mortar mixer slow speed stirring is employed, and then 1000r/min rapid stirring is carried out so as to obtain the product. The grouting material provided by the invention has the characteristics of good slurry flow performance, no layering, no water bleeding, fullness, no shrinkage after hardening, and high strength, is conducive to protecting prestressed reinforcement from being rusted and prolonging the service life of a prestressed bridge structure, is especially suitable for post-tensioned prestressed duct grouting in the northwest and coastal areas, and has anticorrosion and rust resistant functions.
Anticorrosion and rust resistant type post-tensioned prestressed duct grouting material and preparation method thereof
LI JIANYONG (Autor:in) / DIAO SHULEI (Autor:in) / HU ZHIXIU (Autor:in)
28.10.2015
Patent
Elektronische Ressource
Englisch
IPC:
C04B
Kalk
,
LIME
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