Testing of hardened concrete - Part 12: Determination of the carbonation resistance of concrete - Accelerated carbonation method

Comment end date 2025-12-18

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Project stage codes

1. Prioritetinių darbo temų pažymėjimas ir ekspertų skyrimas

2. Projektas

3. Viešoji apklausa

From 2025-10-19 till 2025-12-18

4. Closure of enquiry

5. Submission to Formal Vote

Organisation

CEN Europos standartizacijos komitetas

ICS

91.100.30 - Concrete and concrete products

Technical Committee

TK 19 Concrete and reinforced concrete

ForeignTC'S

CEN/TC 104

Number of comments

Comment start date

2025-10-19

Scope

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.

Relations

Pakeis

prEN 12390-12