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Description of BS EN 12272-3:2025 - TC 2025This document specifies, for anhydrous bituminous binder (cut-back and fluxed bituminous binders), the measurement of the binder aggregate adhesivity and the influence of adhesion agents or interfacial dopes on adhesion characteristics. This is to help designing binder aggregate systems for surface dressing. This document specifies methods of measurement of: — the mechanical adhesion of the binder to the surface of the aggregate; — the active adhesivity of the binder to the chippings; — the improvement of the mechanical adhesion and active adhesivity by adding an adhesion agent either into the mass of the binder or by spraying the interface between binder and chippings; — the wetting temperature of the binder to the aggregate; — the variation of adhesivity below the fragility temperature. The wetting capacity of the binder affects the adhesivity properties. With the presence of water, the wetting capacity of bitumen emulsion is naturally high. Even if mechanical adhesion and active adhesivity test methods are mainly dedicated to anhydrous bituminous binders (cut-back and fluxed bituminous binders), these measurements can also be practiced with bitumen emulsion with a personalized interpretation of the results that depends on the design of the binder aggregate system. For bitumen emulsion, the adhesivity is conventionally measured through the water immersion test (EN 13614). This test method is applicable to: — bituminous binders used for surface dressings (e.g. conventional or polymer modified binders; mainly anhydrous bituminous binders such as cut-back and fluxed bituminous binders and bitumen emulsions); — all the following aggregates sizes that can be used for surface dressings: — set 1: 2/5 mm, 5/8 mm, 8/11 mm and 11/16 mm; and — set 2: 2/4 mm, 2/6 mm, 4/6 mm, 4/8 mm, 6/10 mm, 6/12 mm and 10/14 mm. This test method does not apply to quality control on site. NOTE Further information concerning the purpose of the test can be found in Annex D. WARNING – The use of this document can involve hazardous operations. This document does not purport to address all of the safety problems associated with its use. It is the responsibility of the user of this document to establish appropriate safety practices and determine the applicability of regulatory limitations prior to use.
About BSIBSI Group, also known as the British Standards Institution is the national standards body of the United Kingdom. BSI produces technical standards on a wide range of products and services and also supplies certification and standards-related services to businesses. |
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