Concrete

Usage: Standard

Mixture comprising cement(s), aggregate(s), and water, which may include other chemical admixtures that hardens to form a solid road surface. The mixture may be poured over metal reinforcement bars.

West Side Highway, Manhattan

Benefits

  • Provides durable road surface with high friction coefficient
  • This material is widely available and cost-effective
  • Resists rutting and shoving that can occur with asphalt
  • Compared to asphalt, reduces impact of vehicle travel vibrations on sub-surface features and neighboring structures
  • Higher SRI than asphalt, which helps reduce urban heat island effect

Considerations

  • Difficult and more expensive to replace or patch in sections where utility cuts or defects occur
  • Noisier than asphalt

Application

  • May be considered for use in Shared Streets
  • Appropriate for roads with high motor vehicle volumes and/ or gross weight
  • Should be used wherever engineering criteria dictates, such as bridges, vaulted roadways, or bus pads
  • Should not be used where frequent utility cuts are likely
  • Will be evaluated case-by-case based on engineer review of roadway structure
  • DOT generally maintains this material

Design

Specification source: DOT Standard Specifications Section 3.05, 4.05

Detail source: DOT Standard Details drawing H-1050

Detail source (bus pad): DOT Standard Details drawings H-1005, H-1005 A
 

  • Must have joints to allow for expansion no more than 20 feet apart
  • May require metal reinforcement bars as specified by DOT
  • Sustainability opportunity: Supplementary cementitious materials (SCM)

Maintenance

  • Patching may result in different coloration