What is BS EN 12697‑33-Bituminous mixtures 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 12697‑33 is the 33rd part of the multi-series that is applicable to test methods of the bituminous mixture.
BS EN 12697‑33 specifies the methods for compacting parallelepipedal specimens (slabs) of bituminous mixtures, to be used directly for subsequent testing, or from which test specimens are cut.
BS EN 12697‑33 includes the following methods of compaction:
- Method using a wheel, or two wheels fitted with pneumatic tyres
- Methods using a steel roller, which includes 3 different procedures
- Steel roller
- Steel roller used on wheel fitted with pneumatic tyres
- Steel roller running on vertical sliding steel plates
- Method using a steel roller sector
BS EN 12697‑33 is applicable to bituminous mixtures manufactured in the laboratory or in a mixing plant.
Who is BS EN 12697‑33-Bituminous mixtures for?
BS EN 12697‑33 on the bituminous mixture is applicable to:
- Manufacturers and suppliers of bituminous mixtures and asphalt
- Suppliers of construction materials
- Construction industry
- Civil engineers and contractors
- Road maintenance authorities
- Testing laboratories
Why should you use BS EN 12697‑33-Bituminous mixtures?
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 12697‑33 walks you through the methods of compaction and provides best industry guidance on introducing the mass of bituminous mixture and filling the mould. You can also alter compaction methods if specimen with a specified air voids content or compaction degree is required.
With BS EN 12697‑33-compliant methods, you can make an accurate assessment of specimens for testing. With improved selection of specimens, indications on the best suited materials and mix design can help you meet traffic demands and pavement structural conditions. Overall, BS EN 12697‑33 can help maintain structural integrity of your engineering works.
What’s changed since the last update?
BS EN 12697‑33:2019 supersedes BS EN 12697‑33:2003, which is withdrawn. BS EN 12697‑33:2019 includes some technical changes with respect to BS EN 12697‑33:2003. These include:
- The series title no longer makes the method exclusively for hot mix asphalt
- Method for steel roller sector introduced. Method using a roller running on vertical sliding steel plates now described in new
- Hatching for plates in Figure 3 made vertical for clarity
- Pre-heating of the mould and other metallic moveable parts clarified, and the pre-heating temperature shall be reported
- Distance between twinned wheels clarified by referring to centre lines
- Compaction procedure using steel roller sector introduced. The compaction procedure using a roller running on vertical sliding steel plates is now described in the new clause