Veibelegg

Emner: Veibelegg
Komité: CEN/TC 227 (Road materials)
Opprinnelse:
Sluttdato: 22. mar 2018
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This European Standard describes a series of accelerated protocols for curing of bituminous mixtures with bitumen emulsion in order to assess their properties. The protocols should be selected according to the type of mixture, the type of specimen, the test to be carried out and the conditions of the place of use. This European Standard applies on mixtures, specimens and cores, prepared in the laboratory and/or taken from the worksite. The laboratory curing procedure is designed for asphalt mixtures containing bitumen emulsions, but it could also be used for other types of asphalt mixture that require curing in order to reach their potential strength.
Emner: Veibelegg
Komité: CEN/TC 227 (Road materials)
Opprinnelse:
Sluttdato: 22. mar 2018
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This European Standard defines three procedures to evaluate the compatibility of the constituent materials of a bituminous mixture with bitumen emulsion. These organoleptic methods can be used together to evaluate the compatibility of the constituent materials after a hand mixing procedure for given emulsion and water content: - Method A describes a test method to determine visually the degree of coating; - Method B describes a test method to determine the hydric aspect; - Method C describes a test method to determine the consistency. This European Standard applies on mixtures prepared in laboratory or taken from the plant.
Emner: Veibelegg
Komité: CEN/TC 227 (Road materials)
Opprinnelse:
Sluttdato: 22. mar 2018
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The aim of the test is to determine the cohesion increase of a bituminous mixture in fixed temperature and hygrometry conditions, using a spreadability-meter. This European Standard specifies a method to measure the spreadability characteristics of asphalt which are able to vary with time. It may be used for the determination of the delay between manufacturing and laying. It is intended to be assistance for mixture design rather than a type test. This European Standard applies to bituminous mixtures both those made up in laboratory and those resulting from work site sampling, with an upper aggregate size not larger than 31,5 mm. It is not applicable to mastic asphalt.
Emner: Veibelegg
Komité: CEN/TC 227 (Road materials)
Opprinnelse:
Sluttdato: 22. mar 2018
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This European Standard specifies requirements for plant mixtures of the mix group Asphalt concrete with bituminous emulsion for use on roads, and other trafficked areas. 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. NOTE Asphalt concrete with bituminous emulsion is a mixture in which mechanical properties evolve over time following installation because of curing. Mixtures utilizing bituminous emulsion based on in situ recycling are not covered by this standard. This European Standard includes requirements for the selection of the constituent materials. It is designed to be read in conjunction with: - Annex A Product Type Assessment (Normative); - Annex B Performance characteristic assessment (Informative); - Annex C Factory Production Control (Normative).
Emner: Veibelegg
Komité: CEN/TC 227 (Road materials)
Opprinnelse:
Sluttdato: 22. mar 2018
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This European Standard specifies a method for compacting cylindrical specimens of bituminous mixtures, to be used for subsequent testing. A given mass of bituminous mixture is compacted in a cylindrical mould by applying static compression loads on the top and the bottom of the specimen.