What is BS EN 13108‑31- Material specifications for bituminous mixtures about?  
BS EN 13108 is a European Standard that discusses material specifications of bituminous mixtures.
BS EN 13108‑31 is the 31st part of the multi-series that specifies requirements for plant mixtures of the mixed group Asphalt concrete with bituminous emulsion for use on roads and other trafficked areas.
It details best practices to ensure bituminous mixtures meet the quality and performance requirements that impart structural stability and durability to your construction works.
Note: BS EN 13108‑31 not just in terms of cooling, as other asphalts but also includes curing effects.
Note: Asphalt concrete with bituminous emulsion is a mixture in which mechanical properties evolve over time following installation because of curing.
Note: Mixtures utilizing bituminous emulsion based on in situ recycling are not covered by BS EN 13108‑31.
Who is BS EN 13108‑31- Material specifications for bituminous mixtures for? 
BS EN 13108‑31 on asphalt concrete with bituminous emulsion is useful for: 
- Manufacturers and suppliers of bituminous mixtures
- Construction industry
- Civil engineers and contractors
- Road, pavement and highway construction companies
- Repair and maintenance companies
- Local authorities
- Testing laboratories
Why should you use BS EN 13108‑31- Material specifications for bituminous mixtures?  
Asphalt concrete with bituminous emulsion is a mixture in which mechanical properties evolve overtime following installation because of curing. Asphalt concrete with bituminous emulsion is used for surface courses, binder courses, regulating courses, and bases. It is a mixture in which mechanical properties evolve over time following installation. This is not just in terms of cooling, as other asphalts but also includes curing effects.
The aim of BS EN 13108‑31 is to enable the specification of asphalt concrete mixtures with bituminous emulsion on a performance basis.
BS EN 13108‑31 covers a large variety of materials for different applications, traffic, and climate conditions. BS EN 13108‑31 also gives properties and listings of possible categories. The menu approach for properties has been chosen so as to accommodate the road industry for all of Europe.
BS EN 13108‑31-compliant material specifications of asphalt concrete with bituminous emulsion can help reduce asphalt viscosity and reduce the time emulsified asphalt takes to set.
