What is BS EN 1744-4 - Water susceptibility of fillers for bituminous mixtures about?
BS EN 1744 is a European Standard for testing the chemical properties of aggregates. The main of the BS EN 1744 series is to provide the best industry guidance to ensure construction materials contribute to the structural integrity of civil engineering works.
BS EN 1744-4 is the fourth part of the BS EN 1744 series that specifies the procedure for determining the water susceptibility of fillers for bituminous mixtures by separating filler from a bitumen filler mixture.
A method for the determination of water susceptibility by volume increase and loss of stability of a Marshall specimen is described in Annex A.
Who is BS EN 1744-4 - Water susceptibility of fillers for bituminous mixtures for?
BS EN 1744-4 on water susceptibility of fillers for bituminous mixtures is useful for:
- Construction materials manufacturers and suppliers
- Manufacturers of bituminous filler products
- Manufacturers of mineral materials and products
- Cement, concrete and aggregate industry
- Civil engineers
- Contractors
- Quality control and testing authorities
Why should you use BS EN 1744-4 - Water susceptibility of fillers for bituminous mixtures?
Water susceptibility of filler is a measure of the degree of separation that occurs in the presence of water from a filler bitumen mixture, e.g., due to intra-crystalline water inclusion between aggregate particles and binder coating.
In this regard, BS EN 1744-4 specifies the reagents and apparatus needed and the test sampling, preparation, and testing procedures for separating filler from a bitumen filler mixture.
As a result, if you are a manufacturer of aggregates, conforming to BS EN 1744-4 can demonstrate the performance and quality of your products.
Overall, bituminous mixes should be constructed properly to meet the design requirements of stability and durability, as well as to assure the performance of building work and asphalt pavements.