BS 812-124:2009 Testing aggregates. Method for determination of frost heave
Aggregates are the most commonly used construction minerals in the UK. They are widely distributed with a range of potential sources and are used in very large quantities. Testing these minerals is therefore very important.
BS 812-124 describes a test procedure for the determination of the frost resistance of unbound aggregate mixtures. It covers mixtures that have been compacted to form a cylindrical specimen with a predetermined water content and density.
BS 812-124 applies to unbound aggregate mixtures used in the construction of roads and other paved areas at a depth that might experience frost penetration.
BS 812-124 includes an option for the use of comparator specimens to confirm that the test chamber is working correctly.
Who will find BS 812-124 useful?
- People working with the Highways Agency
- Consulting Engineers
- People dealing with quarry products
- Civil Engineers
- All those involved with testing materials/minerals.
BS 812-124 replaces BS 812-124:1989 which is now withdrawn.
Contents of BS 812-124:
- Foreword
- Scope
- Normative references
- Terms and definitions
- Principle
- Sampling and sample reduction
- Apparatus
- Preliminary testing procedure
- Preparation of test specimens
- Procedure for the determination of frost heave
- Calculation and expression of results
- Test report
- Precision
- Self-refrigeration unit
- Use of comparator specimens
