705.1.3 Contrast. Detectable Warning Surfaces shall contrast visually with adjacent walking surfaces either light-on-dark, or dark-on-light.
Slip Resistance: 0.93 Dry 0.91 Wet ASTM C1028.
Natural finish meets color contrast requirements.
Slip-resistant textured surface
Complies with ASTM A159 Requirements for Automotive Grade Gray Iron Castings
Complies with AASHTO M105-09, Standard Specification for Gray Iron Castings (ASTM A48, Class 45B)
Complies with AASHTO M306-10 for Drainage, Sewer, Utility, and Related Castings
DOT Approved (contact your local sales representative for specification approvals)
Made in the U.S.A. from Recycled Materials
Eligible to earn LEED® points in the Materials and Resources Category
Cast iron is an environmentally responsible product that is completely recyclable after its useful life.
The physical characteristics of the concrete shall be as specified in the contract documents while maintaining a slump range of 4-7 to permit the solid placement of the Tactile Unit in the wet concrete.
The concrete shall be poured and finished level, true and smooth to the required dimensions prior to the placement of the Tactile Unit.
Place the Tactile Unit 6-8 inches from the curb line. Working in a grid pattern, tamp the Tactile Unit into the wet concrete using a rubber mallet. Continue this process until all of the air has been released, and the Tactile Unit surface is flush with the surrounding area.
Following the placement, the Tactile Unit elevation should be checked to the adjacent surface with a straight edge. The Tactile Unit elevation should be consistent with the contract drawings and specifications. Any required adjustments must be made prior to the time when the concrete begins to set.
IMPORTANT NOTICE TO INSTALLER: To allow for expansion and contraction, after tile is installed, use a 1/4” finish edge trowel around entire perimeter.
During and after the Tactile Unit installation, as well as the concrete curing stage, no walking or external forces can be placed on the Tactile Unit. The area must be protected from pedestrian traffic until concrete is cured. The Tactile Warning Surface will be ready for pedestrian traffic within 2-4 hours.