What is BS EN 12697‑44-Crack propagation by semi-circular bending test about?
BS EN 12697 is a European standard that discusses bituminous mixtures. The main objective of the BS EN 12697 series is to maintain structural integrity of your engineering works.
BS EN 12697‑44 is the 44th part of the multi-series of documents applicable to bituminous mixture for crack propagation by semi-circular bending test.
BS EN 12697‑44 specifies the Semi-Circular Bending (SCB) test method to determine the tensile strength or fracture toughness of an asphalt mixture for the assessment of the potential for crack propagation. The results of the test can be used to calculate:
- The maximum load that the material containing a notch (crack) can resist before failure
- When the presence of a notch is critical
NOTE: BS EN 12697‑44 does not cover the fatigue test.
Who is BS EN 12697‑44-Crack propagation by semi-circular bending test for?
- Manufacturers and suppliers of bituminous mixtures and asphalt
- Asphalt refining plants
- Suppliers of construction materials
- Civil engineers
- Road contractors
- Road development authorities
- Construction companies
Why should you use BS EN 12697‑44- Crack propagation by semi-circular bending test?
Bituminous mixtures, also known as asphalt mixtures, are widely used as construction materials, that impart durability and structural strength to the end-application.
BS EN 12697‑44 walks you through the SCB test procedures, providing you the necessary requirements for apparatus, the sample preparation process, and calculations of maximum stress at failure, fracture toughness, maximum load and maximum force.
By adopting BS EN 12697‑44-compliant SCB test method, you can determine the crack-resistance of asphalt mixtures. This can be particularly beneficial to evaluate the durability and sustainability of pavement/road structures. You can thus choose the best materials and mix design to meet traffic demands and pavement structural conditions. Quality assurance of bituminous mixtures that meet BS EN 12697‑44 requirements, can help maintain structural integrity of your engineering works.
What’s changed since the last update?
BS EN 12697‑44:2019 supersedes BS EN 12697‑44:2010, which is withdrawn. Some significant technical changes between BS EN 12697‑44:2019 and BS EN 12697‑44:2010 include:
- The series title no longer makes the method exclusively for hot mix asphalt
- Formulae were deleted and renumbered