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BS 594987:2015+A1:2017 Asphalt for roads and other paved areas. Specification for transport, laying, compaction and product type testing protocols, 2017
- Foreword
- 1 Scope
- 2 Normative references
- 3 Terms and definitions
- 4 Transport and delivery [Go to Page]
- 4.1 Transport
- 4.2 Delivery to the site
- 5 Preparatory works at the laying site [Go to Page]
- 5.1 General
- 5.2 Surface level tolerances
- 5.3 Resurfacing
- 5.4 Adjustment or regulation of levels
- Table 1A — Nominal target and minimum compacted layer thicknesses for asphalt concrete (AC) mixtures conforming to BS EN 13108‑1 (see PD 6691:2015, Annex B)
- Table 1B — Nominal target and minimum compacted layer thicknesses for HRA mixtures conforming to BS EN 13108‑4 (see PD 6691:2015, Annex C)
- Table 1C — Nominal target and minimum compacted layer thicknesses for SMA surface course mixtures conforming to BS EN 13108‑5 (see PD 6691:2015, Annex D)
- Table 1D — Nominal target and minimum compacted layer thicknesses for other SMA mixtures conforming to BS EN 13108‑5 (see PD 6691:2015, Annex D)
- 5.5 Application of bond coats
- Table 2 — An example of bond coat minimum target rate of spread in litres per square metre of emulsion
- 6 Layings [Go to Page]
- 6.1 General
- 6.2 Laying in adverse conditions
- 6.3 Machine laying
- 6.4 Hand laying
- 6.5 Sampling during laying
- 6.6 Thickness
- 6.7 Surface regularity, contour and falls
- Table 3 — Accuracy of finish
- 6.8 Joints
- 6.9 Access chamber covers and projections
- 7 Chipping of hot rolled asphalt (HRA) [Go to Page]
- 7.1 General
- 7.2 Rate of spread of coated chippings
- 7.3 Method of applying coated chippings
- Table 4 — Minimum rolling temperature for HRA mixtures
- 8 Texture depth [Go to Page]
- 8.1 General
- 8.2 Measurement of surface texture
- 9 Compaction [Go to Page]
- 9.1 General
- 9.2 General requirements for compaction of machine‑laid asphalt
- Table 5 — Minimum rolling temperatures for designed AC dense, heavy‑duty and high‑modulus binder course and base (including EME2)
- 9.3 General requirements for compaction of hand‑laid asphalt and areas with restricted access
- 9.4 Sampling and testing for assessment of compacted asphalt
- 9.5 Compaction control
- 10 Opening to traffic
- Annex A (informative) Recommended delivery and rolling temperatures for recipe AC, HRA and SMA to BS EN 13108 [Go to Page]
- Table A.1 — Minimum delivery and rolling temperatures for recipe AC, HRA and SMA mixtures
- Annex B (informative) Approximate rates of spread of asphalt [Go to Page]
- Table B.1 — Approximate rate of spread
- Annex C (informative) Protocol for determining void content of dense base and binder AC mixtures conforming to BS EN 13108‑1 from trial strips for the purposes of product‑type testing to BS EN 13108‑20 [Go to Page]
- Figure C.1 — Spacing of cores
- Annex D (informative) Protocol for determining resistance to permanent deformation of binder course and base asphalt mixtures conforming to BS EN 13108‑1 (asphalt concrete) from trial strips for the purposes of type testing to BS EN 13108‑20
- Annex E (informative) Protocol for determining void content and stiffness of EME2 base and binder AC mixtures conforming to BS EN 13108‑1 from trial strips for the purposes of product‑type testing to BS EN 13108‑20 [Go to Page]
- Figure E.1 — Spacing of cores
- Annex F (informative) Protocol for determining void content, binder volume and resistance to permanent deformation of performance‑related surface course HRA mixtures conforming to BS EN 13108‑4 from trial strips for the purposes of product‑type testing t [Go to Page]
- Figure F.1 — Spacing of cores
- Annex G (informative) Protocol for determining void content and resistance to permanent deformation of SMA binder course and regulating courses to BS EN 13108‑5 from trial strips for the purposes of product‑type testing to BS EN 13108‑20 [Go to Page]
- Figure G.1 — Spacing of cores
- Annex H (informative) Protocol for determining the design binder content of designed HRA surface course mixtures to BS EN 13108‑4 [Go to Page]
- Table H.1 — Tests on material
- Table H.2 — Aggregate proportions for mix design
- Table H.3 — Binder proportions required for mix‑design procedure
- Table H.4 — Mass of aggregate (coarse, fine and filler) and suggested binder contents for trial mixes
- Figure H.1 — Example of mixture design
- Table H.5 — Factors for the calculation of design binder content
- Annex I (informative) Protocol for calibrating and operating indirect density gauges
- Annex J (informative) Tack coats
- Annex K (informative) Protocol for determination of the maximum binder content of porous asphalt and other bituminous mixtures without excessive binder drainage [Go to Page]
- Table K.1 — Test temperatures for porous asphalt with unmodified bitumen
- Figure K.1 — Typical diagram of mortar or binder drained
- Annex L (informative) Guidance for the mix design of BBA for airfields to BS EN 13108‑1
- Bibliography [Go to Page]
