Liikennevirasto

Toimialayhteisö: Liikennevirasto
Komitea: ISO/TC 182 (Geotechnics)
Alkuperä: ISO
Määräpäivä: 2018-09-24
LaajennaSupista
 
This Standard establishes the specifications for the execution of static pile load tests in which a single pile is subjected to an axial static load in compression in order to define its load-displacement behaviour. The provisions of EN 22477-1 apply to vertical piles as well as raking piles. All types of piles are covered by this standard. The tests considered in this Standard are limited to maintained load tests. Pile load tests with constant penetration rate and cyclic load tests are not covered by this standard. EN ISO 22477-1 shall be used in conjunction with EN 1997-1. Numerical values of partial factors for limit states and of correlation factors to derive characteristic values from static pile load tests to be taken into account in design are provided in EN 1997-1. This Standard provides specifications for:
Toimialayhteisö: Liikennevirasto
Komitea: CEN/TC 227 (Road materials)
Alkuperä: CEN
Määräpäivä: 2018-10-07
LaajennaSupista
 
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.
Toimialayhteisö: Liikennevirasto
Komitea: CEN/TC 227 (Road materials)
Alkuperä: CEN
Määräpäivä: 2018-10-07
LaajennaSupista
 
This document 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 document describes the following methods of compaction:- method using a wheel or two wheels fitted with pneumatic tyres;- methods using a steel roller, which includes 3 different procedures: - steel roller; - steel roller used on wheel fitted with pneumatic tyres; - steel roller running on vertical sliding steel plates;- method using a steel roller sector.This document 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: 2018-10-07
LaajennaSupista
 
This document 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: 2018-10-07
LaajennaSupista
 
This document specifies a method for the preparation of bituminous test specimens using a vibratory compaction technique.This document is applicable to loose mixtures and cores and is used to establish a refusal density for a bituminous mixture, or to determine the ease of compaction as described in EN 12697-10.
Toimialayhteisö: Liikennevirasto
Komitea: CEN/TC 227 (Road materials)
Alkuperä: CEN
Määräpäivä: 2018-10-07
LaajennaSupista
 
This document specifies a method for determination of the resistance to fuel spillage of a joint sealant by calculating the change in mass, after immersion in a standard reference fuel.
Toimialayhteisö: Liikennevirasto
Komitea: CEN/TC 227 (Road materials)
Alkuperä: CEN
Määräpäivä: 2018-10-07
LaajennaSupista
 
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: 2018-10-07
LaajennaSupista
 
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: 2018-10-07
LaajennaSupista
 
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 341 (Geotechnical Investigation and Testing)
Alkuperä: CEN
Määräpäivä: 2018-10-12
LaajennaSupista
 
This international standard specifies a method for consolidated triaxial compression tests on water-saturated soils. This international standard is applicable to the laboratory determination of triaxial shear strength under compression loading within the scope of geotechnical investigations.The cylindrical specimen, which may comprise undisturbed, re-compacted, remoulded or reconstituted soil, is subjected to an isotropic or an anisotropic stress under drained conditions and thereafter is sheared under undrained or drained conditions. The test allows the determination of shear strength, stress-strain relationships and effective stress paths. All stresses and strains are denoted as positive numerical values in compression.Special procedures such as:a) tests with lubricated ends;b) multi-stage tests;c) tests with zero lateral strain (K0) consolidation;d) tests with local measurement of strain or local measurement of pore pressure;e) tests without rubber membranes;f) extension tests;g) shearing where cell pressure varies;h) shearing at constant volume are not fully covered in this standard procedure. However, these specific tests may refer to general procedures described in this standard.NOTE This document fulfils the requirements of consolidated triaxial compression tests for geotechnical investigation and testing in accordance with EN 1997-1 and EN 1997-2.
Toimialayhteisö: Liikennevirasto
Komitea: ISO/TC 182 (Geotechnics)
Alkuperä: ISO
Määräpäivä: 2018-10-12
LaajennaSupista