What is BS EN 12697‑15 – Bituminous segregation sensitivity about?
BS EN 12697‑15 is a European standard and a part of the BS EN 12697 series that discusses the determination of the segregation sensitivity for bituminous mixtures. Bituminous mixtures, sometimes called asphalt mixtures, are blends of aggregates with different gradations, filler types and content and hardness with bitumen of different grades and quantities.
BS EN 12697‑15 specifies a test method for the determination of the mixing quality and the tendency of segregation in the composition of bituminous mixtures. This test method is considered suitable for mixed design purposes and client information.
Who is BS EN 12697‑15 – Bituminous segregation sensitivity for?
BS EN 12697‑15 on bituminous segregation sensitivity applies to:
- Manufacturer of bituminous mixtures
- Construction engineers
- Quality control personnel
- Testing authorities
- Regulatory authorities
Why should you use BS EN 12697‑15 – Bituminous segregation sensitivity?
Bituminous mixtures, which are also called asphalt mixtures, are the combinations of aggregates with different gradations, filler types, content, and hardness with bitumen of different grades and quantities.
Segregation is a variability of the aggregate grading and the corresponding binder content in a well-mixed bituminous mixture, due to differential movements of coarse and fine aggregate particles when handling the mixture.
BS EN 12697‑15 provides you with useful guidance on the homogeneity quality of a bituminous mixture. The test data guide the efficacy of the mixing procedure and the sensitivity of the mixture for segregation in its composition during the handling so that appropriate measures can be taken to minimize such segregation were considered necessary.
With BS EN 12697‑15 you can be ensured that the products consistently meet and exceed quality assurance targets
What’s changed since the last update?
BS EN 12697‑15:2022 supersedes BS EN 12697‑15:2003, which is withdrawn. It includes:
- The title no longer refers to hot mix asphalt and (ge) editorial update according to a current standard template.
- Addition of new clause “Introduction” according to CEN/CENELEC Internal Regulations Part 3:2019 and Clause 1, scope clarified according to CEN/CENELEC Internal Regulations Part 3:2019.
- Clause 4, previous clause “Significance and use” deleted. 1st and 2nd paragraphs are transferred to the Introduction. 3rd paragraph including NOTE transferred to Scope (modified) and Clause 4, revised title to “Principal”. Following clauses renumbered.
- Clause 5, correction of Figure 1 (Clause 6 in the previous version) and Clause 9, complete with references to formulas. “(percentage)” replaced by: “to the nearest 0,1 %”.
- 2, correction to 1 % for the calculation of the aggregate segregation value and Clause10, revision of data to be reported.