<?xml version="1.0"?><rdf:RDF xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:edm="http://www.europeana.eu/schemas/edm/" xmlns:wgs84_pos="http://www.w3.org/2003/01/geo/wgs84_pos" xmlns:foaf="http://xmlns.com/foaf/0.1/" xmlns:rdaGr2="http://rdvocab.info/ElementsGr2" xmlns:oai="http://www.openarchives.org/OAI/2.0/" xmlns:owl="http://www.w3.org/2002/07/owl#" xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#" xmlns:ore="http://www.openarchives.org/ore/terms/" xmlns:skos="http://www.w3.org/2004/02/skos/core#" xmlns:dcterms="http://purl.org/dc/terms/"><edm:WebResource rdf:about="http://www.dlib.si/stream/URN:NBN:SI:doc-IRFB16O9/0c687f7c-de05-4b1f-a714-d59e316b48de/PDF"><dcterms:extent>1674 KB</dcterms:extent></edm:WebResource><edm:WebResource rdf:about="http://www.dlib.si/stream/URN:NBN:SI:doc-IRFB16O9/ef20262d-f1ce-4372-a1c7-fa20e3695064/TEXT"><dcterms:extent>25 KB</dcterms:extent></edm:WebResource><edm:TimeSpan rdf:about="1999-2025"><edm:begin xml:lang="en">1999</edm:begin><edm:end xml:lang="en">2025</edm:end></edm:TimeSpan><edm:ProvidedCHO rdf:about="URN:NBN:SI:doc-IRFB16O9"><dcterms:isPartOf rdf:resource="https://www.dlib.si/details/URN:NBN:SI:spr-6QOUKQ9A" /><dcterms:issued>2015</dcterms:issued><dc:creator>Jezeršek, Matija</dc:creator><dc:creator>Kozjek, Dominik</dc:creator><dc:creator>Kryžanowski, Andrej</dc:creator><dc:creator>Pavlovčič, Urban</dc:creator><dc:creator>Šušteršič, Jakob</dc:creator><dc:format xml:lang="sl">številka:5</dc:format><dc:format xml:lang="sl">letnik:61</dc:format><dc:format xml:lang="sl">str. 311-318, SI 58</dc:format><dc:identifier>ISSN:0039-2480</dc:identifier><dc:identifier>COBISSID:13986331</dc:identifier><dc:identifier>URN:URN:NBN:SI:doc-IRFB16O9</dc:identifier><dc:language>en</dc:language><dc:publisher xml:lang="sl">Zveza strojnih inženirjev in tehnikov Slovenije et al.</dc:publisher><dcterms:isPartOf xml:lang="sl">Strojniški vestnik</dcterms:isPartOf><dc:subject xml:lang="sl">abrazijska odpornost</dc:subject><dc:subject xml:lang="sl">beton</dc:subject><dc:subject xml:lang="sl">laserska profilometrija</dc:subject><dc:subject xml:lang="sl">laserska triangulacija</dc:subject><dc:subject xml:lang="sl">obraba površine betonov</dc:subject><dc:subject xml:lang="sl">tridimenzionalno merjenje</dc:subject><dcterms:temporal rdf:resource="1999-2025" /><dc:title xml:lang="sl">Three-dimensional characterization of concrete's abrasion resistance using laser profilometry|</dc:title><dc:description xml:lang="sl">This paper presents development of three-dimensional characterization of concrete abrasion using the ASTM C1138 test method, which simulates underwater abrasion. To this effect, a measuring system was designed based on laser triangulation with linear illumination of the surface measured. The system allows for contactless, quick and precise measuring of average wear and other topological characteristics dependent on the type of the tested concrete. Validation results show that the system's precision is better as conventional weighting method (&lt;15 gram) and furthermore it allows us to analyze the spatial distribution of wear</dc:description><dc:description xml:lang="sl">Ena izmed metod karakterizacije odpornosti betonov na abrazijo je metoda ASTM C1138. Pri njej z vrtinčenjem vode in jeklenih kroglic simuliramo interakcijo med betonom in delci, ki jih nosi vodni tok. Rezultat preizkusa je povprečna obrabna globina. Metoda je uspešna pri manj odpornih betonih, medtem ko se pri betonih visoke kvalitete, kjer so obrabne globine majhne, rezultati pogosto nahajajo znotraj merilne negotovosti merjenja obrabe. Zato je kaže potreba po izboljšani natančnosti, ki jo je možno doseči z laserskim tridimenzionalnim merjenjem obrabljene površine. Poleg tega z izmero reliefa obrabljene površine tudi bolje razumemo fizikalne procese ob interakciji jeklenih kroglic s površino betona, gibanja jeklenih kroglic in sam proces abrazije</dc:description><edm:type>TEXT</edm:type><dc:type xml:lang="sl">znanstveno časopisje</dc:type><dc:type xml:lang="en">journals</dc:type><dc:type rdf:resource="http://www.wikidata.org/entity/Q361785" /></edm:ProvidedCHO><ore:Aggregation rdf:about="http://www.dlib.si/?URN=URN:NBN:SI:doc-IRFB16O9"><edm:aggregatedCHO rdf:resource="URN:NBN:SI:doc-IRFB16O9" /><edm:isShownBy rdf:resource="http://www.dlib.si/stream/URN:NBN:SI:doc-IRFB16O9/0c687f7c-de05-4b1f-a714-d59e316b48de/PDF" /><edm:rights rdf:resource="http://rightsstatements.org/vocab/InC/1.0/" /><edm:provider>Slovenian National E-content Aggregator</edm:provider><edm:intermediateProvider xml:lang="en">National and University Library of Slovenia</edm:intermediateProvider><edm:dataProvider xml:lang="sl">Univerza v Ljubljani, Fakulteta za strojništvo</edm:dataProvider><edm:object rdf:resource="http://www.dlib.si/streamdb/URN:NBN:SI:doc-IRFB16O9/maxi/edm" /><edm:isShownAt rdf:resource="http://www.dlib.si/details/URN:NBN:SI:doc-IRFB16O9" /></ore:Aggregation></rdf:RDF>