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BONDED AGGREGATE
WOODROYD BOUND AGGREGATE SURFACING
SUB BASE REQUIREMENTS
Description
Woodroyd Bound Aggregate Surfacing is composed of specially formulated
resin used to adhere natural aggregates to suitable substrates to produce a
decorative and hard wearing surface dressing.
Substrate
The substrate must be of suitable construction for the proposed use. The
Bound Aggregate Surfacing will impart no structural strength to the substrate.
Concrete may require to be lightly abraded or shot blast cleaned to remove
surface laitance. New concrete surfaces should have a fine wood float finish.
New concrete must be surface dry before application.
Bituminous
surfaces should be of a dense mixture and well consolidated to create a
non-porous surface with no voids in the surface.
Existing bituminous surfaces must be of a sound construction.

EXAMPLES OF SUITABLE SPECIFICATIONS FOR MACADAM SUBSTRATE CONSTRUCTION.
New works to be carried out in accordance with "Specification for Highways
Works December 1991 reprinted August 1993 with Amendments" as issued by the
Department of Transport.
Binders should comply with BS3690 Part l or Part 3
Foot Paths
Base Course
20mm N.S. Dense Macadam Base Course to a minimum depth of 50mm (Series 1100
Clause 1105 BS4987 CL6.5
Wearing Course
3mm or 6mm Dense Macadam Wearing Course to a minimum depth of 20mm (Series
1100 Clause 1105 BS4987 CL 7.7 or 7.6) or Fine Cold Asphalt Wearing Course
laid to a minimum depth of 15mm (Series 1100 Clause 1104)
Light Vehicular Traffic
Base Course
28 or 20mm N.S. Dense Macadam Base Course to a minimum depth of 70mm
(Series 900 Clause 906 BS4987 CL6.4 or 6.5) or 60% 20mm Rolled Asphalt Base
Course to BS594 Part 1 Clause 2 and 3 to a minimum depth of 60mm (Series 900
Clause 905 BS594 T2 CL2/4)
Wearing Course.
55% 10mm Aggregate Rolled Asphalt Wearing Course to BS594 Part 1 for
wearing course design mixes with sub clauses 2,3 and 4 (Machine Laid) (Series
900 Clause 910 BS594 T3 CL3/4) or 30% 10mm Aggregate Rolled Asphalt Wearing
Course to BS594 Part 1 for wearing course recipe mixes with sub clauses 2,3
and 4 (Hand Laid) (Series 900 Clause 910 BS594 T6 CL 6/3)
Road Construction
Road Base
40 or 28mm Dense Macadam Roadbase to a minimum depth of 90mm (Series 900
Clause 903 BS4987 CL6.3 or 6.4) or 60% 40mm or 28mm Rolled Asphalt Roadbase
Course to a minimum depth of 90mm (Series 900 Clause 905 BS594 T2 CL2/6 or T2
CL 2/5)
Base Course
28 or 20mm N.S Dense Macadam Base Course to a minimum depth of 60mm (Series
900 Clause 906 BS4987 CL 6.4 or 6.5) or 60% 20mm Rolled Asphalt Base Course to
BS594 Part 1 Clause 2 and 3 to a minimum depth of 60mm (Series 900 Clause 905
BS594 T2 CL 2/4)
Wearing Course
55% 10mm Aggregate Rolled Asphalt Wearing Course to BS594 Part 1 for
wearing course recipe mixes with sub clauses 2,3 and 4 (Machine Laid) or 30%
10mm Aggregate Rolled Asphalt Wearing Course to BS594 Part 1 for wearing
course recipe mixes with sub clauses 2,3 and 4 (Hand Laid) (Series 900 Clause
910 BS594 T6 CL6/3)

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