OPEN_796_EAONE_LANDSCAPE_SPECIFICATION 10 Aug 2016 APPENDIX 9
Q23 Gravel/ Hoggin/ Woodchip/ Resin bound roads/ paving/ overlays
To be read with Preliminaries/ General conditions. TYPES OF SURFACING
110A HARD BINDING GRAVEL P3 PERIMETER MAINTENANCE PATH • Subgrade improvement layer: Submit proposals. - Compacted thickness: Submit proposals.
• Geotextile: Sheet. - Manufacturer: Submit proposals. Product reference: Submit proposals.
• Granular sub-base: Highways Agency Type 2 unbound mixture, as section Q20. - Compacted thickness: 150 mm.
• Blinding to sub-base: Required. • Surface course: Angular gravel, free from clay, with sufficient grit to enable compaction. - Type: IMAG Grey Pave or submit samples for approval. - Source: Submit proposal. - Colour: Grey Pave. - Size: Graded 6-10 mm. - Compacted thickness: 100 mm.
• Completion: Compact to produce a firm, regular surface, stable in use.
170A LOOSE GRAVEL OVERLAY P2 INERT PERMEABLE GRAVEL GROUND COVER WITHIN SUBSTATION
• Base: Made up ground formed by excvation works related to substation construction, topped with 100mm rolled MOT Type 3 granular material. - Preparation: Ensure made up ground is free draining .
• Gravel: Loose laid and raked to uniform thickness: - Type: Kennet Flint or other locally sourced Flint stone - supply samples for approval . - Source: Locally sourced. - Colour: Grey. - Size: Graded 8-14 mm or submit proposals. - Thickness: 100 mm.
270 HARD LANDSCAPING MATERIALS SPECIFICATION • Minimum 'BRE Green Guide to Specification Online' rating: A.
LAYING
310A TIMBER EDGING FOR SELF BINDING GRAVEL PATH (P3) • Softwood board: - Size: 150 x 38 mm. - Fixing: Galvanized nails into softwood pegs.
• Softwood pegs: - Size: 50 x 50 x 600 mm long. - Fixing: Drive into ground. - Centres: 1200 mm.
• Preservative treatment: Tanalith E/GFb or submit approvals). Page 12 of 54
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