EN 12274-8:2005

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Tankoplastne prevleke po hladnem postopku - Preskusne metode - 8. del: Vizualna ocena poškodbDünne Asphaltschichten in Kaltbauweise - Prüfverfahren - Teil 8: Augenscheinliche BeurteilungMatériaux bitumineux coulés a froid - Méthodes d'essai - Partie 8: Evaluation visuelle des défautsSlurry surfacing - Test methods - Part 8: Visual assessment of defects93.080.20Materiali za gradnjo cestRoad construction materialsICS:Ta slovenski standard je istoveten z:EN 12274-8:2005SIST EN 12274-8:2006en01-januar-2006SIST EN 12274-8:2006SLOVENSKI
STANDARD
EUROPEAN STANDARDNORME EUROPÉENNEEUROPÄISCHE NORMEN 12274-8September 2005ICS 93.080.20 English VersionSlurry surfacing - Test methods - Part 8: Visual assessment ofdefectsMateriaux bitumineux coulés a froid - Méthodes d' essai -Partie 8: Evaluation visuelleDünne Asphaltschichten in Kaltbauweise - Prüfverfahren -Teil 8: Augenscheinliche BeurteilungThis European Standard was approved by CEN on 4 August 2005.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this EuropeanStandard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such nationalstandards may be obtained on application to the Central Secretariat or to any CEN member.This European Standard exists in three official versions (English, French, German). A version in any other language made by translationunder the responsibility of a CEN member into its own language and notified to the Central Secretariat has the same status as the officialversions.CEN members are the national standards bodies of Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France,Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia,Slovenia, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMITÉ EUROPÉEN DE NORMALISATIONEUROPÄISCHES KOMITEE FÜR NORMUNGManagement Centre: rue de Stassart, 36
B-1050 Brussels© 2005 CENAll rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 12274-8:2005: ESIST EN 12274-8:2006

Qualitative assessment – Estimated "drive-over" method.13 Annex B (normative)
Quantitative assessment – Measured method.15 Annex C (informative)
Photographs of defects.16 Bibliography.22
3.1 Terms and definitions 3.1.1 defect state of a slurry surfacing where the material is affected by one or more of the effects defined in this European Standard (see 3.1.2 to 3.1.13). 3.1.2 bleeding, fatting up and tracking appearance of free binder at the surface NOTE This may be due to the binder migrating to the surface (bleeding) or to coarse aggregate migrating downwards (fatting up) or a combination of the two, it is often difficult to visually separate the two causes. Tracking is evident as shiny areas caused by traffic resulting in loss of macrotexture normally in the wheel tracks. 3.1.3 delamination detachment of the slurry surfacing from the underlying road or from a lower layer of a multi-layer slurry surfacing 3.1.4 wearing and loss of slurry surfacing loss of mass of material SIST EN 12274-8:2006

is the sum of the areas of bleeding fatting up and tracking in the 100 m section being considered, in square metres (m2); A2
is the sum of the areas of delamination, loss of aggregate, wearing, lane joint gaps, rutting and slippage in the 100 m section being considered, in square metres (m2); A3 is the sum of the areas of corrugation, bumps and ridges in the 100 m section being considered, in square metres (m2); A4 is the sum of the areas of the rectangle or rectangles containing small repetitive defects or group of small defects in the 100 m section being considered, in square metres (m2); D is the upper aggregate sieve size of the slurry surfacing (as in EN 13043); L
is the total length of longitudinal grooves in the 100 m section, in metres (m); P1 is the proportion of area of bleeding, fatting up and tracking in the 100 m section being considered, expressed as a percentage (%), of the area of the section; P2 is the proportion of area of delamination, loss of aggregate, wearing, lane joint gaps, rutting and slippage in the 100 m section being considered, expressed as a percentage (%), of the area of the section; P3 is the proportion of area of corrugation, bumps and ridges in the 100 m section being considered, expressed as a percentage (%), of the area of the section; P4 is the proportion of area of the rectangle or rectangles containing a group of small defects or small repetitive defects, in the 100 m section being considered, expressed as a percentage (%), of the area of the section plus the number of rectangles (see Annex A, line 14 and Annex B, line 14, area and number); S is the area of 100 m long section of slurry surfacing, in square metres (m2); W is the mean width of lane, in metres (m). 4 Visual assessment of defects 4.1 General A (100 ± 1) m section of slurry surfacing is chosen for visual assessment for each lane of the road. The section reference shall be recorded in the relevant annex. Sections may be located anywhere along the road except that they shall not overlap. The remainder of the site that is not chosen for testing or the area between sections is deemed to be without defects at the time the test is carried out. NOTE 1 The sections should be chosen in order to maximise the number of defects in each section. NOTE 2 If the defects are localised there may be only one section chosen in one lane for the entire length of road treated. SIST EN 12274-8:2006
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