BS 594987:2015+A1:2017
$198.66
Asphalt for roads and other paved areas. Specification for transport, laying, compaction and product type testing protocols
| Published By | Publication Date | Number of Pages |
| BSI | 2017 | 58 |
This British Standard specifies requirements for the transport, laying and compaction of asphalt mixtures conforming to BS EN 13108‑1, BS EN 13108‑4 and BS EN 13108‑5, and described in PD 6691, from the time that they leave the mixing plant until they are placed on the road ready to receive a superimposed layer or traffic. It also includes requirements for preliminary work at the laying site needed to ensure that the substrate is fit to receive the asphalt and for the application of bond coats.
Although this standard does not contain explicit requirements for asphalt materials covered in other parts of BS EN 13108 or other proprietary asphalt mixtures, the general requirements of this standard can be applied to those mixtures, in addition to special requirements for particular mixtures specified in individual quality plans and/or method statements.
NOTE 1 The term “asphalt” used in this standard is the generic term used to describe the wide range of mixtures of aggregate and bituminous binder individually known as asphalt concrete (AC), hot rolled asphalt (HRA), stone mastic asphalt (SMA), porous asphalt (PA) or mastic asphalt and other proprietary materials which are available for use in constructing and maintaining roads and other paved areas that are on the market in the UK.
NOTE 2 Methods for ensuring that the correct surface drainage characteristics are imparted to pavements with PA surface course are outside the scope of this British Standard.
NOTE 3 BS EN 13108‑20 specifies tests for determining the conformity of a mix to any of the other parts of BS EN 13108. This is similar to a mix design validation or job mix trial. BS EN 13108‑20 offers some choice in the way in which specimens are to be prepared for the purposes of product‑type testing. Requirements for sample preparation for the demonstration of product‑type test properties are given in PD 6691:2015, Clause 13 and are linked to the relevant protocols/annexes in this British Standard, as relevant.
In the case of HRA, a mixture design protocol is provided as informative text in Annex H, and requirements are specified for providing a rough‑textured surface on the surface course to provide skid‑resistance.
This standard does not specify requirements for asphalt incorporating bitumen emulsion binders.
This standard does not cover additional or specific requirements relating to the laying and compaction of reduced temperature asphalts.
NOTE 4 BS EN 13108 is being reviewed and it is anticipated that any revisions might cover low‑temperature and cold mixtures.
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 6 | Foreword |
| 9 | 1 Scope 2 Normative references |
| 11 | 3 Terms and definitions 4 Transport and delivery 4.1 Transport |
| 12 | 4.2 Delivery to the site 5 Preparatory works at the laying site 5.1 General 5.2 Surface level tolerances 5.3 Resurfacing |
| 13 | 5.4 Adjustment or regulation of levels |
| 14 | 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) |
| 15 | 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 |
| 16 | Table 2 — An example of bond coat minimum target rate of spread in litres per square metre of emulsion |
| 17 | 6 Layings 6.1 General 6.2 Laying in adverse conditions |
| 19 | 6.3 Machine laying 6.4 Hand laying |
| 20 | 6.5 Sampling during laying 6.6 Thickness 6.7 Surface regularity, contour and falls Table 3 — Accuracy of finish |
| 21 | 6.8 Joints 6.9 Access chamber covers and projections |
| 22 | 7 Chipping of hot rolled asphalt (HRA) 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 |
| 23 | 8 Texture depth 8.1 General 8.2 Measurement of surface texture 9 Compaction 9.1 General |
| 24 | 9.2 General requirements for compaction of machine‑laid asphalt |
| 25 | Table 5 — Minimum rolling temperatures for designed AC dense, heavy‑duty and high‑modulus binder course and base (including EME2) |
| 26 | 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 |
| 27 | 9.5 Compaction control |
| 30 | 10 Opening to traffic |
| 31 | Annex A (informative) Recommended delivery and rolling temperatures for recipe AC, HRA and SMA to BS EN 13108 Table A.1 — Minimum delivery and rolling temperatures for recipe AC, HRA and SMA mixtures |
| 32 | Annex B (informative) Approximate rates of spread of asphalt Table B.1 — Approximate rate of spread |
| 33 | 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 |
| 34 | Figure C.1 — Spacing of cores |
| 35 | 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 |
| 36 | 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 |
| 38 | Figure E.1 — Spacing of cores |
| 39 | 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 |
| 41 | Figure F.1 — Spacing of cores |
| 42 | 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 |
| 44 | Figure G.1 — Spacing of cores |
| 45 | Annex H (informative) Protocol for determining the design binder content of designed HRA surface course mixtures to BS EN 13108‑4 Table H.1 — Tests on material |
| 46 | Table H.2 — Aggregate proportions for mix design |
| 47 | 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 |
| 49 | Figure H.1 — Example of mixture design |
| 50 | Table H.5 — Factors for the calculation of design binder content Annex I (informative) Protocol for calibrating and operating indirect density gauges |
| 51 | Annex J (informative) Tack coats |
| 52 | Annex K (informative) Protocol for determination of the maximum binder content of porous asphalt and other bituminous mixtures without excessive binder drainage Table K.1 — Test temperatures for porous asphalt with unmodified bitumen |
| 54 | Figure K.1 — Typical diagram of mortar or binder drained |
| 55 | Annex L (informative) Guidance for the mix design of BBA for airfields to BS EN 13108‑1 |
| 57 | Bibliography |
