Specification for surface infill material

A2.6.3

This material must comply with the requirements of Table A2.4.

Table A2.4 Performance criteria for surface infill material
Performance criteria	Procedure	Requirement
Material type	Not Applicable	Thermoset resin
Permanent deformation resistance	Wheel tracking to BS EN 12697-22 (Small device, Procedure A at 60°C)	WTR_AIR15,0 and RD_AIR7,0
Tensile bond strength	Tensile bond tested in accordance with appendix J in TRL report 176	≥ 0.75 MPa
Elongation	BS EN ISO 527-1 & 3 – Plastics – determination of tensile properties	> 150%
Initial skid resistance on application	Skid resistance (SRV) by the pendulum method BS EN 13036-4: 2003 using the narrow slider with measurements on scale C	> 60 SRV
Retained skid resistance	Skid resistance (SRV) by the pendulum method BS EN 13036-4 using the narrow slider with measurements on scale C	> 50 SRV
Initial texture depth	Determined by the draft linear sand patch test	> 1.5 mm*
* Not applicable for footways and footpaths.

A2.6.5

Alternative materials may be proposed for infill of micro trenching. This must be supported by a track record of use and a Product Acceptance Scheme accreditation. Otherwise, materials must follow A9 for approval.