Anläggningsarbete

Ämnesområden: Körbana
Kommittébeteckning: SIS/TK 202 (Vägmaterial)
Källa: CEN
Svarsdatum: den 1 feb 2021
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This document specifies a test method to determine the resistance of bituminous materials to de-icing fluids such as solutions of acetate and formate. The procedure determines the surface tensile strength of a specimen of asphalt which has been stored in de-icing fluid.
This document is primarily used as a test on asphalt to be laid on airfields, but it can be used for asphalt to be laid on roads or other paved areas.

Ämnesområden: Körbana
Kommittébeteckning: SIS/TK 202 (Vägmaterial)
Källa: CEN
Svarsdatum: den 5 feb 2021
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This document describes a hot sand test method for determining the condition of the binder on coated chippings for use with hot rolled asphalt (HRA) surface course.

Kommittébeteckning: SIS/TK 110 (Akustik och buller)
Källa: ISO
Svarsdatum: den 8 feb 2021
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This document describes a test method for measuring in situ the sound absorption coefficient of road surfaces as a function of frequency in the range from 250 Hz to 4 kHz.
Normal incidence is assumed. However, the test method can be applied at oblique incidence although with some limitations (see Annex F). The test method is intended for the following applications:
— determination of the sound absorption properties of road surfaces in actual use;
— comparison of sound absorption design specifications of road surfaces with actual performance data of the surface after completion of the construction work.
The complex reflection factor can also be determined by this method.

Ämnesområden: Körbana
Kommittébeteckning: SIS/TK 202 (Vägmaterial)
Källa: CEN
Svarsdatum: den 11 feb 2021
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This document specifies general requirements for common test equipment, calibration procedures and reagents for the testing of bituminous materials in the EN 12697 series of standards.
NOTE 1 This document makes use by reference of the requirements for common equipment and calibration prepared for aggregates.
NOTE 2 Bodies providing accreditation of test equipment may need to consider alternative requirements and/or calibration frequencies in order to cover the possibilities of National Health & safety, regulatory and legislative requirements.
Advice is also given on recommendations for laboratory management (Annex A), on the accuracy of measurement (Annex B) and on the rounding of values for reported results (Annex C).