Alpine Shire Council - Victoria Bridge CFRP Crosshead Strengthening

• Conducted on

  Date

• Prepared by

• Location
  Address

• The following quality control checklist is to be completed everyday to ensure compliance with the relevant standard AS5100.8

• Add location
  Address

• Specify product manufacturer, product name and batch no.

• Select date

  Date

• Surface Moisture Content less than 10%

• Dew Point Temperature > Ambient Temperature + 3 Degrees Celsius

• Relative Humidity Less than 85%

Surface Preparation

• Surface free of the following: Dust, oil, grease, loose particles, remnants of curing compound, waxes, coatings, organics contaminants and weak concrete layers

How has the surface been prepped? Specify:

• Dry abrasive blasting, wet abrasive blasting, steam cleaning, angle grinder, high pressure water blast

• Amplitude of surface profile to be between 0.5-1mm (60 grit sand paper)

• Minimum corner radius of 25mm

Treatment of cracks

• Cracks greater than 0.2mm repaired using resin injection

• Cracks less than 0.2mm coated with bridging layer of epoxy putty (Masterbrace 4000 Adhesive)

• Provide photographic evidence of surface preparation Pro

• Add media

  Media

Environmental Conditions

• The FRP strengthening system can only be installed when all of the following conditions are met

• Ambient temperature between 5-30 degrees Celsius

• Concrete surface temperature between 8-35 degrees Celsius

• Relative humidity below 85%

• No rain or run off, including leaks and seepage through bridge decks that may affect adhesion

• Surface temperature of substrate is 3 degrees higher than dew point temperature

• Moisture content of substrate below 8%

Inspection Criteria

• The following components of the FRP system shall be routinely inspected over the course of the installation

• Changes in colour of FRP strengthening system

• Debonding

• Peeling

• Blistering

• Cracking and crazing

• Excessive deflections

• Provide photographic of Installation of FRP system

• Add media

  Media

Pull of Adhesion Testing

• Mean adhesion pull of strength of 1.5MPa with no individual result less than 1.35MPa

• Minimum concrete compressive strength required for FRP strengthening is 17Mpa

• Adhesion testing conducted at the following intervals: 1 per 75 lin.m of or repair or 1 sample per 10m^2