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Test determination of: Standard Products
Sample grading  
  • Sieve shakers
EN 932-5
EN 932-5
EN 932-5
EN 933-10
 
  • Sieves
ISO 3310-1
ISO 3310-2
ASTM E11
ISO 3310-1 / ISO 3310-2 / ASTM E11
ASTM E11
 
  • Sample Splitters
EN 932-5 / EN 933-3 / EN 932-1
EN 933-3
Particle shape  
  • Particle shape app.
EN 933-3
EN 933-4
 
  • Flakiness and elongation index apparatus
BS 812:105.1
BS 812:105.1
BS 812:105.1
Assessment of fines  
  • Assessment of fines apparatus
EN 933-8 / ASTM D2419
EN 933-8 / ASTM D2419 / AASHTO T176
EN 933-9
BS 812
Efflux index EN 933-6
Resistance to fragmentation EN 1097-2 / ASTM C131 / EN 12697-17 / EN 12697-43
Resistance to wear (Micro Deval) EN 1097-1 / EN 13450
Crushing resistance of lightweight aggregates EN 13055-1
Abrasion resistance of natural stones and concrete tiles EN 1341 / EN 1342 / EN 1338 / EN 1339 / EN 1340 / EN 14157 / EN 12808-2 / EN 14617-4
Abrasion resistance by Deval method NF P18-577
Aggregate impact value (AIV) BS 812-112 / NF P18-574
Aggregate crushing value BS 812:110
Voids of dry compacted filler EN 1097-4
Loose bulk density and voids EN 1097-3
Aggregate density by water displacement BS 812:2
Particle density and water absorption EN 1097-6 / ASTM C127
Particle density of filler EN 1097-7
Relative densities and water absorption for up to 10 mm size aggregates BS 812:2 / ASTM D854 / BS 1377:2
Surface moisture of fine aggregate, ASTM method ASTM C70 / AASHTO T142
Polished stone value (PSV) EN 1341 / EN 1342 / EN 1097-8 / EN 1343
Skid resistance and surface friction EN 1341 / EN 1342 / EN 1338 / EN 1097-8 / ASTM E303 / EN 13036-4
Determination of resistance to freezing and thawing EN 1367-1 / EN 196-1
Soundness by sodium sulphate or magnesium sulphate ASTM C88 / BS 812:121
Chloride content of fine aggregates BS 812:117 / BS 1377:3
Potential reactivity of aggregates ASTM C289 / NF P94-048 / UNI 8520-22
Carbonate content of aggregates
Organic impurities in fine aggregates  
  • Equipment for chemical tests
ASTM C40 / AASHTO T21 / UNI 8020-14
ASTM C40
Resistance to thermal shock EN 1367-5
Sample reduction  
  • Crushing apparatus
ASTM C289
ASTM C289
Bohme Abrasion Test EN 1338 / EN 1339 / EN 1340 / EN 14157 / EN 13892-3 / EN 13748 / DIN 52108
Scratch Hardness of Coarse Aggregate Particles ASTM C235 / ASTM C851
Determination of particle density of lightweight aggregates EN 1097-6
Aggregati

Aggregati

Gli aggregati di origine naturale sono utilizzati in tutti i settori dell'ingegneria civile per produrre conglomerati bituminosi, calcestruzzi, malte, pietrame per argini, ballast ferroviari, ecc. Per questa ragione è stata da noi prestata grande attenzione a tutti i metodi di prova. Le nuove norme UNI EN sono state distinte in 5 raggruppamenti:

  • Prove per determinare le proprietà generali 
  • Prove per determinare le proprietà geometriche
  • Prove per determinare le proprietà meccaniche e fisiche
  • Prove per determinare le proprietà tecniche e la degradabilità
  • Prove per determinare le chimiche


Nella maggioranza dei casi la nuova norma UNI EN corrisponde ad altre norme internazionali, come ASTM e AASHTO e, salvo alcune eccezioni, le apparecchiature di prova sono identiche.  

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