Details:

Alternative Title:
Silica fume latex modified concrete bridge deck overlay : Tualatin River Bridge #1417N : final report.
Creators:
Brooks, Eric W.
Corporate Creators:
Oregon. Dept. of Transportation. Research Unit
Corporate Contributors:
United States. Federal Highway Administration
Subject/TRT Terms:
[+]
Chloride Permeability
Latex Modified Concrete
Silica Fume
Chlorides
Concrete Bridges
Cracking
Friction
Latex Modified Concrete
Mix Design
Overlays (Pavements)
Permeability

Publication/ Report Number:
OR EF-98-10
Resource Type:
Tech Report
Geographical Coverage:
Oregon
Corporate Publisher:
Oregon. Dept. of Transportation. Research Unit
Abstract:
The Oregon Department of Transportation has used either Silica Fume or Latex Modified Concrete (LMC) to lower chloride permeability in bridge deck overlays. On this project a new project combining both silica fume and LMC was used. The overlay was completed in July of 1993. Three years later, only a few cracks had developed. Chloride permeability measurements were low but not as low as the suppliers claimed.

One unexpected result was lower friction numbers on the deck surfacing. At this time it is unclear if the reduced friction was due to the modified cement or the smaller aggregates used in the mix design. ODOT plans further testing to determine the main cause of the reduced friction.

This product was difficult to mix and place and has since been discontinued by the producer.


Format:
PDF
Collection(s):
US Transportation Collection
Main Document Checksum:
[+]
urn:sha256:e88617f7fd1b9eecc23cdb66335ebd5f682828addb988e805cd54af86e09fdcf
File Type:

Supporting Files

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