PD 6689:2009. Surface treatments. Guidance on the use of BS EN 12271 and BS EN 12273
Published Document (PD) 6689 gives guidance on the use of BS EN 12271 and BS EN 12273 in the United Kingdom. BS EN 12271 specifies the properties of surface dressing whilst BS EN 12273 specifies the properties of slurry surfacing and microsurfacing.
PD 6689 gives guidance on the performance requirements and control procedures for the installation of both surface treatments as products for the maintenance of roads and other trafficked areas.
PD 6689 does not apply to the following:
- Surface dressings designed by the purchaser; i.e. the recipe approach for which the contractor is instructed as to the rates of spread, chipping size, etc., and therefore is not responsible for performance requirements
- Surface treatments in tunnels where fire regulations apply
- Small areas under 500 m2 which are not contiguous, such as patch repair
- Airfield pavements covered by international regulations (e.g. International Civil Aviation Organization regulations)
BS EN 12271:2006 Surface dressing. Requirements
BS EN 12271 specifies a range of categories for properties of surface dressing to enable users to select appropriate limiting values for a wide range of uses within Europe.
The specifier needs to define BS EN 12271 categories for properties relevant to the particular end-use of the surface dressing. It does not cover surface dressing works carried out to the purchaser’s design, commonly called a recipe specification.
This type of specification can continue to be used, but purchasers are responsible for the performance of the surface dressing provided that the works have been executed correctly.
BS EN 12273:2008 Slurry surfacing. Requirements
BS EN 12273 specifies a range of categories for properties of slurry surfacing and microsurfacing to enable users to select appropriate limiting values for a wide range of uses within Europe.
Specifiers need to define BS EN 12273 categories for properties relevant to the particular end-use of the slurry surfacing and microsurfacing.
This version of PD 6689 replaces the 2006 version, which is withdrawn.
Contents of PD 6689:
- Foreword
- 0 Introduction
- 1 Scope
- 2 Normative references
- 3 Terms and definitions
- 4 Overview
- 5 Requirements of BS EN 12271 and BS EN 12273
- 6 Factory production control
- 7 Type approval installation trial (TAIT)
- Annexes
- Annex A (informative) Examples of specification – surface dressing
- Annex B (informative) Examples of specification – slurry surfacing and microsurfacing
- Bibliography
- List of figures
- Figure A.1 – Surface dressing – example specifications
- Figure B.1 – Slurry surfacing and microsurfacing – example specifications
- List of tables
- Table 1 – Traditional binder class names
- Table 2 – Traffic categories
- Table 3 – Surface dressing – tolerance and accuracy of rate of spread of binder and chippings
- Table 4 – Surface dressing – categories for defects determined by visual assessment
- Table 5 – Surface dressing – recommended minimum macrotexture levels at the end of the guarantee period
- Table 6 – Slurry surfacing and microsurfacing – recommended minimum macrotexture levels
- Table 7 – Slurry surfacing and microsurfacing – categories for defects determined by visual assessment
- Table 8 – Surface dressing – frequencies of test for binder and chipping application
- Table 9 – Slurry surfacing and microsurfacing – frequencies of testing – all road types
- Table 10 – Surface dressing – example of family of TAITs
- Table 11 – Slurry surfacing and microsurfacing – example of family of TAITs
