Liikennevirasto

Toimialayhteisö: Liikennevirasto
Komitea: CEN/TC 341 (Geotechnical Investigation and Testing)
Alkuperä: CEN
Määräpäivä: 2017-09-29
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Toimialayhteisö: Liikennevirasto
Komitea: CEN/TC 341 (Geotechnical Investigation and Testing)
Alkuperä: CEN
Määräpäivä: 2017-09-29
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Toimialayhteisö: Liikennevirasto
Komitea: CEN/TC 341 (Geotechnical Investigation and Testing)
Alkuperä: CEN
Määräpäivä: 2017-09-29
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Toimialayhteisö: Liikennevirasto
Komitea: CEN/TC 341 (Geotechnical Investigation and Testing)
Alkuperä: CEN
Määräpäivä: 2017-09-29
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Toimialayhteisö: Liikennevirasto
Komitea: CEN/TC 226 (Road equipment)
Alkuperä: CEN
Määräpäivä: 2017-10-22
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This European Standard specifies requirements for the following road traffic noise reducing devices (as defined in 3.1):- noise barriers (as defined in 3.4),- claddings (as defined in 3.5),- covers (as defined in 3.6), and- added devices (as defined in 3.7).These devices may include both acoustic and structural elements, where:- an acoustic element is an element whose primary function is to provide a noise reducing device with sound insulation, diffraction and/or sound absorption, it is a part of noise reducing device to be used along roads, and- a structural element is an element whose primary function is to support or hold in place acoustic elements, it is a part of noise reducing device to be used along roads. Depending upon the design of the noise reducing device, structural elements may potentially be tested separately from acoustic elements.They may be made of different materials for which specific standards are to be applied in accordance with the specifications prescribed hereafter. Some of the materials may contain dangerous substances, the reason why all the materials are declared.This European Standard identifies the relevant characteristics of road traffic noise reducing devices, the corresponding methods of evaluation and specifies the provisions on evaluation of conformity and marking.This European Standard covers acoustic, non-acoustic and long-term performance, but not aspects such as resistance to vandalism or requirements of visual appearance.This European Standard provides Annex ZA for the declaration of performance of all types of Noise Reducing Devices and for their elements. When prepared for an element, the declaration of performance has to be included through a cascading process in the declaration of performance of the final / installed Noise Reducing Device.This European Standard does not cover road surfaces or the airborne sound insulation of houses.
Toimialayhteisö: Liikennevirasto
Komitea: CEN/TC 227 (Road materials)
Alkuperä: CEN
Määräpäivä: 2017-10-23
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This European Standard describes a procedure for calculating volumetric characteristics of a compacted bituminous specimen: the air voids content (Vm), the voids content in the mineral aggregate filed with binder (VFB) and the voids content in the mineral aggregate filed with binder and additives (VFBad) for the case of mixtures containing additives in their composition.The method is suitable for specimens which are laboratory compacted or specimens cut from the pavement after placement and compacting, either by coring or sawing.These volumetric characteristics can be used as mix design criteria or as parameters for evaluating the mixture after placing and compacting in the road.
Toimialayhteisö: Liikennevirasto
Komitea: CEN/TC 227 (Road materials)
Alkuperä: CEN
Määräpäivä: 2017-10-23
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This European Standard specifies the methods for compacting parallelepipedal specimens (slabs) of bituminous mixtures, to be used directly for subsequent testing, or from which test specimens are cut.For a given mass of bituminous mixture, the specimens are prepared either under controlled compaction energy, or until a specified volume and therefore air voids content is obtained.This European Standard describes the following methods of compaction:- pneumatic tyre method;- steel roller method;- steel roller sector method.This European Standard is applicable to bituminous mixtures manufactured in the laboratory or in a mixing plant.
Toimialayhteisö: Liikennevirasto
Komitea: CEN/TC 227 (Road materials)
Alkuperä: CEN
Määräpäivä: 2017-10-23
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This European Standard describes test methods for the preparation of samples for testing hot applied joint sealants for use in joints in roads, airfields and other concrete pavements.
Toimialayhteisö: Liikennevirasto
Komitea: CEN/TC 227 (Road materials)
Alkuperä: CEN
Määräpäivä: 2017-11-19
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This draft European Standard specifies methods of moulding specimens from bituminous mixtures by impact compaction. Such specimens are primarily used to determine bulk density and other technological characteristics e.g. Marshall stability and flow according to EN 12697-34.This draft European Standard applies to bituminous mixtures (both those made up in a laboratory and those resulting from work site sampling), with not more than 15 % by mass retained on the 22,4 mm sieve and none on the 31,5 mm sieve.
Toimialayhteisö: Liikennevirasto
Komitea: CEN/TC 227 (Road materials)
Alkuperä: CEN
Määräpäivä: 2017-11-19
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This draft European Standard specifies the Semi-Circular Bending (SCB) test method to determine the tensile strength or fracture toughness of an asphalt mixture for the assessment of the potential for crack propagation. The results of the test can be used to calculate:- the maximum load that the material containing a notch (crack) can resist before failure;- when the presence of a notch is critical.It should be noted that the test only describes a method to determine the resistance to crack propagation of an asphalt mixture. The crack propagation phase describes the second part of failure mechanism during dynamic loading. The first phase, which is the crack initiation phase, is mainly covered by the fatigue test (EN 12697-24).
Toimialayhteisö: Liikennevirasto
Komitea: CEN/TC 227 (Road materials)
Alkuperä: CEN
Määräpäivä: 2017-11-19
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This draft European Standard specifies test methods for determining the maximum density of a bituminous mixture (voidless mass). It specifies a volumetric procedure, a hydrostatic procedure and a mathematical procedure.The test methods described are intended for use with loose bituminous materials containing paving grade bitumens, modified binders or other bituminous binders used for hot mix asphalt. The tests are suitable for both fresh or aged bituminous materials.Samples may be supplied as loose material or as compacted material; the latter should be separated first.NOTE General guidance on selection of a test procedure to determine the maximum density of a bituminous mixture is given in Annex A.
Toimialayhteisö: Liikennevirasto
Komitea: CEN/TC 227 (Road materials)
Alkuperä: CEN
Määräpäivä: 2017-11-19
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This document describes a test method for the recovery of soluble bitumen from bituminous mixtures used in road, airfield or similar pavements in a form suitable for further testing. The test can be undertaken on either loose or compacted asphalt materials. The procedure is suitable for the recovery of paving grade bitumens, for which materials this European Standard is the reference method. The fractionating column procedure (see EN 12697-4) is the reference method for mixtures containing volatile matter such as cut-back bitumen.For recovery of polymer modified bitumens, the rotary evaporator procedure is recommended.