Same mixture as Unpigmented Concrete, but with an added pigment for use in high-density commercial districts. Pigmented concrete can be treated with silicon carbide to add sparkle, making it a Distinctive material. This is one of two kinds of pigmented concrete — see also Pigmented Concrete (Historic Materials).
* Inclusion of silicon carbide in the aggregate makes this a Distinctive material.
* See below for details of where Standard usage applies.
See benefits of Unpigmented Concrete
- Dark pigmenting visually enhances sidewalk and emphasizes urban character in areas with denser commercial and retail density
- Saw-cut joints provide cleaner look, simulating individually hewn blocks of stone
- Sparkle adds distinction and visual enhancement to pigmented concrete, especially at night
See considerations of Unpigmented Concrete
- Standard in commercial districts C4-4 through C4-7, C5 and C6, as defined in the Zoning Resolution of the City of New York, per Section 2-09(f)(4) of Title 34 of the Rules of the City of New York
- Because this is a Distinctive sidewalk treatment, it is best used when applied to entire blocks, rather than to the sidewalks of individual small properties which would create a “patchwork” effect
Specification source: DOT Standard Specifications Section 4.13
Silicon carbide specification source: DOT Standard Specifications Section 4.13
See design guidance for Unpigmented Concrete
- Sustainability opportunity: Supplementary cementitious materials (SCM)
- Sustainability opportunity: Recycled concrete aggregate (RCA)
See maintenance for Unpigmented Concrete
- Adjacent property owners are generally responsible for maintaining this material