IMPROVED GROUTS FOUND TO EXTEND BRIDGE LIFE

New grout mixtures used in bonded posttensioned construction could extend the service life of bridges located in coastal areas, as well as those subjected to deicing salts, by as much as 40%, according to a recent study. The new grouts will make it possible to build structures that will be safer and will last longer. The study recommends two grouts: one for vertical applications (a mixture with a 0.33 water-to-cement ratio and an antibleed admixture) and one for horizontal applications (a mixture with a 0.35 ratio and 30% fly ash in the cement).

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  • English

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  • Accession Number: 00790688
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Apr 17 2000 12:00AM