DOCUMENT

ITB - Traffic Calming Devices 2008

  • YEAR CREATED: 2008
  • ENTITY TYPE: County
  • TYPE OF DOCUMENT: BID - ITB, IFB, ITT, RFB
The document provides specifications for two different construction materials: concrete for pavement and preformed thermoplastic pavement markings. For the concrete pavement, the document specifies that the contractor should pour and imprint the concrete in sections, applying color hardener in multiple shakes to achieve a range of color variations. Imprinting tools should be used to create the desired surface impression, and a liquid membrane-forming compound should be applied for curing. For the preformed thermoplastic pavement markings, the document describes the requirements for a durable, retroreflective material that can be affixed to bituminous and/or Portland cement concrete pavements using heat. The markings should be resistant to motor fuels and have resealing characteristics. The manufacturer must be ISO certified, and the material should meet the requirements of the Manual on Uniform Traffic Control Devices for Streets and Highways. The material should also contain a minimum of 30% intermixed graded glass beads by weight, with specific specifications for the coated surface beads. The document includes a size gradation table for the glass beads.
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