NEN-EN 12390-12
Testing hardened concrete - Part 12: Determination of the carbonation resistance of concrete - Accelerated carbonation method
Organization: | NEN |
Publication Date: | 1 February 2020 |
Status: | active |
Page Count: | 22 |
ICS Code (Concrete and concrete products): | 91.100.30 |
scope:
This document quantifies the carbonation resistance of concrete using test conditions that accelerate the rate of carbonation. After 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 levels of 70 days.
This procedure is not a method for the determination of carbonation depths in existing concrete structures.