2011-226B.1 - Laserfiche WebLink

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s �.. .., . .6.E $ ,. 4�, Y T ' . l .; t T 527-2 . 2 Material Properties : Provide Detectable Warnings that meet the following minimum material property requirements when tested in accordance with the indicated Standard appropriate to the material . PROPERTY STANDARD MINIMUM THRESHOLD ASTM C1028 , 17609 , Dry Coefficient of Friction — 0 . 8 min . and Slip Resistance 171677 , 171678 , 171679 ; Wet Coefficient of Friction — 0 . 65 min . ; E303 Or 35 BPN (include recessed areas between truncated domes) Wear Resistance ASTM C501 Average wear depth on dome <0 . 030 " after 1000 abrasion cycles . Water Absorption ASTM D570 Not to exceed 5 % . Adhesion/Bond Strength ASTM C482 No adhesion failure Non-Hazardous Classification RCRA Subtitle C Non-Hazardous F�Applies only to pavers and tiles consisting of plastic materials. 527-2 .3 Color/Contrast : Use safety yellow, brick red or black colored Detectable Warnings on concrete walking surfaces . Use safety yellow colored Detectable Warnings on asphalt walking surfaces . Acceptable Detectable Warnings as listed on the Qualified Products List will meet the following criteria for a duration of three years . COLOR LIGHT REFLECTANCE VALUES (LRV) CAP Y * Safety Yellow 25 - 45 Brick Red 5 - 15 lack 0 - 5 *When measured with a spectrophotometer 527-2 .4 Qualified Products List : Methods or products used to form Detectable Warnings in wet concrete will not be permitted. Use Detectable Warnings listed on the Department Qualified Products List (QPL) . Manufacturers of Detectable Warnings seeking evaluation of their product shall submit an application in accordance with Section 6 . Manufacturers must demonstrate performance in accordance with the requirements of these Specifications and with the acceptance criteria detailed in Index No . 304 of the Design Standards . Submit Applications that include certified test reports from an independent laboratory that shows the Detectable Warning meets the material properties and all requirements specified herein . Application must include manufacturer ' s installation drawings that describe detailed quality control requirements for installation including, but not limited to : special materials and/or equipment ; recommendations for cleaning/preparing substrate surfaces ; bonding method describing thickness , spread rate and/or curing time (s) of grout or adhesive materials ; mechanical anchorage ; and protection of Detectable Warning materials during set-up/curing period. In addition, manufacturer ' s drawings must provide recommended quality control procedures for touch-up and repair of localized areas of installations , for compliance with the acceptance criteria provided in Index No . 304 of the Design Standards . - 150 - FPID ( S ) : 4231864 - 58 - 01 77 77777 I Lr 14 _ _ . .,f _ , vim_ < :. ..