Podaci o nacrtu
Oznaka:prEN 12390-12
Odbor:HZN/TO 71
Ime odbora:Beton
Nacrt objavljen za komentiranje:2025-11-13
Rok za komentiranje:2025-12-08
Broj komentara:0
Contact email:nacrti(at)hzn.hr
Područje primjene nacrta:
This document describes a method for evaluating the carbonation resistance of concrete using test conditions that accelerate carbonation. After a defined period of curing and a period of preconditioning, the test is carried out under controlled exposure conditions using an increased level of carbon dioxide.
NOTE The test performed under reference conditions takes a minimum of 112 days comprising a minimum age of the specimen prior to curing under water of 28 days, a minimum preconditioning period of 14 days and an exposure period to increased carbon dioxide level of 70 days.
This procedure is not a method for the determination of carbonation depths in existing concrete structures.