Research on Corrosion Resistance Properties of Post-Tensioned Prestress Duct Grouting

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Abstract:

The corrosion resistance of post-tensioned prestress grout is considered an important indicator to structural safety and durability, based on some current specification on slurry anti-corrosion requirements of prestressing tendons at home and abroad, through laboratory accelerated corrosion test this paper mainly analyzes the diffusion way of harmful substances in the slurry, the relationships between rust time and prestressing tendons protective layer thickness, and then according to selected materials with different proportions have different corrosion time, take QL + ZQ is the best choice in anti-corrosion.

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1250-1256

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January 2013

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© 2013 Trans Tech Publications Ltd. All Rights Reserved

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