PD CEN TR 17172-2022 PDF

Full title and description

PD CEN/TR 17172:2022 — Validation testing program on chloride penetration and carbonation standardized test methods. This technical report describes a coordinated validation testing programme for standardized test methods addressing chloride penetration and carbonation of concrete, intended to verify robustness, coherence and comparability of results across mixtures, laboratories and test procedures.

Abstract

The report sets out objectives, test matrices, sample preparation and statistical evaluation approaches for a round‑robin/validation programme of methods developed under CEN/TC 51 (WG12). Its primary aim is to test concrete mixes for aggressive environments using the standardized chloride penetration and carbonation methods to confirm method performance and to provide recommendations for interpretation and further harmonization. NOTE: the report cross‑references EN 206 for general concrete specification guidance.

General information

• Status: Current (CEN Technical Report published and available as a PD in several national bodies).
• Publication date: August 2022 (national releases shown as 08 August 2022 in several adopters).
• Publisher: CEN (CEN/TR 17172:2022) — national publication/adoption available through organizations such as BSI, DIN and AENOR.
• ICS / categories: 91.100.30 — Concrete and concrete products.
• Edition / version: 2022 (Technical Report, superseding earlier 2018 TR edition).
• Number of pages: 62 pages (some national PDFs/listings show 60–62 pages depending on pagination and national cover pages).

Scope

This Technical Report specifies the structure and practical arrangements for a validation testing programme of standardized methods for chloride penetration and carbonation of concrete. It covers selection of concrete mixes relevant to aggressive environments, test method variants published or under development by CEN/TC 51 (WG12), sample production and curing, inter‑laboratory trial design, data analysis and criteria for assessing method robustness and comparability. The document is intended to support national adopters and laboratories in implementing coordinated validation trials and to inform interpretation alongside EN 206.

Key topics and requirements

• Design of a validation testing programme (round‑robin setup, number of participants, statistical plan).
• Selection and characterization of concrete mixes representative of aggressive chloride/carbonation exposure.
• Detailed sample preparation, curing and preconditioning procedures to ensure comparability.
• Standardized execution of chloride penetration and carbonation test methods (as referenced from CEN/TC 51 outputs).
• Data collection templates, uncertainty treatment and statistical evaluation methods for repeatability and reproducibility.
• Guidance on interpretation of results and recommendations for harmonization or method refinement.

Typical use and users

Used by: concrete testing laboratories, research institutions, CEN/TC 51 working groups, national standards bodies and quality assurance teams in construction product manufacture. Typical applications include multi‑laboratory validation trials, method verification prior to national adoption, research on durability of concrete in chloride/carbonation exposure, and supporting conformity assessment and specification development.

Related standards

Closely related to EN 206 (Concrete — Specification, performance, production and conformity) and to the suite of CEN test methods for determination of chloride penetration and carbonation; readers should consult the referenced EN test methods and CEN/TC 51 outputs when planning validation trials. The 2022 TR replaces the previous TR edition from 2018.

Keywords

Validation testing; chloride penetration; carbonation; concrete durability; CEN/TR 17172; inter‑laboratory trials; test method validation; EN 206; CEN/TC 51.

FAQ

Q: What is this standard?

A: PD CEN/TR 17172:2022 is a CEN Technical Report providing a validation testing programme for standardized methods that measure chloride penetration and carbonation in concrete; it documents how to plan and carry out inter‑laboratory validation to assess method performance.

Q: What does it cover?

A: It covers the objectives and design of validation testing, selection of concrete mixes, sample handling and conditioning, execution of the referenced test methods, data recording and statistical evaluation to judge repeatability, reproducibility and robustness.

Q: Who typically uses it?

A: National standards bodies, testing and research laboratories, members of CEN/TC 51 working groups, concrete product manufacturers and contractors involved in durability assessment and method validation.

Q: Is it current or superseded?

A: The 2022 Technical Report is current (published/issued in August 2022) and supersedes the earlier 2018 TR edition. National PD/adopted versions (BSI PD, DIN, AENOR listings) are available.

Q: Is it part of a series?

A: It sits within the body of CEN/TC 51 durability and test method outputs and is complementary to EN standards for concrete (notably EN 206) and the series of standardized test methods addressing chloride ingress and carbonation. The TR is intended to support and validate those test methods.

Q: What are the key keywords?

A: Validation testing, chloride penetration, carbonation, concrete durability, inter‑laboratory validation, CEN/TR 17172, EN 206.