ISO 1920-11-2013 PDF

Full title and description

St ISO 1920-11:2013 — Testing of concrete — Part 11: Determination of the chloride resistance of concrete, unidirectional diffusion. This international standard specifies a laboratory test method to determine parameters describing unidirectional, non‑steady‑state chloride penetration in conditioned specimens of hardened concrete for comparative assessment of concrete quality.

Abstract

ISO 1920-11:2013 defines a unidirectional diffusion test procedure and associated calculation methods to measure chloride ingress into concrete specimens. The method yields chloride penetration values at specified ages and is intended for ranking and comparative testing of concrete mixes with respect to chloride resistance.

General information

• Status: Published (confirmed).
• Publication date: May 2013 (2013-05).
• Publisher: International Organization for Standardization (ISO).
• ICS / categories: 91.100.30 (Concrete, mortar, aggregates).
• Edition / version: Edition 1 (2013).
• Number of pages: 20 pages.

Scope

This part of ISO 1920 specifies a laboratory method for determining the unidirectional non‑steady‑state chloride penetration parameters of conditioned, hardened concrete specimens. It is intended to determine chloride penetration at a specified age for comparative ranking of concrete mixes and to provide parameters for service-life and durability assessments where chloride ingress is a concern. The method addresses specimen preparation, conditioning, exposure, measurement and calculation of chloride transport parameters, and reporting of results.

Key topics and requirements

• Objective: determine unidirectional chloride penetration parameters (non‑steady‑state diffusion) for hardened concrete.
• Specimen types and conditioning procedures required before exposure to chloride solution.
• Test apparatus and exposure arrangement to enforce unidirectional chloride ingress.
• Sampling, profiling and chemical analysis of chloride concentration through specimen depth.
• Calculation procedures to derive diffusion/penetration parameters and recommended reporting format.
• Limitations and applicability: comparative assessment and ranking rather than absolute field prediction without additional modelling.

Typical use and users

This standard is used by testing laboratories, concrete producers, materials engineers, researchers and durability specialists to evaluate and compare the chloride resistance of concrete mixes, to verify performance claims, and to supply input parameters for durability/service‑life modelling related to chloride-induced corrosion of reinforcement.

Related standards

ISO 1920 is a series covering testing of concrete; related parts include methods for static modulus, carbonation resistance, fresh self‑compacting concrete properties, setting time of mixtures, and other test methods in the ISO 1920 series. Users typically consult adjacent parts of ISO 1920 and national/adopted standards for complementary test procedures and context.

Keywords

chloride resistance; chloride penetration; diffusion; unidirectional diffusion; concrete testing; durability; hardened concrete; service life; chloride profiling.

FAQ

Q: What is this standard?

A: ISO 1920-11:2013 is an international standard that specifies a laboratory method for determining unidirectional, non‑steady‑state chloride penetration parameters of hardened concrete specimens for comparative evaluation of chloride resistance.

Q: What does it cover?

A: It covers specimen preparation and conditioning, the unidirectional exposure arrangement, chloride exposure and sampling, chemical analysis of chloride profiles, calculation of penetration/diffusion parameters and reporting of results and limitations.

Q: Who typically uses it?

A: Testing and research laboratories, concrete producers and materials/durability engineers use it to compare concrete mixes, verify product performance and provide input for chloride‑induced corrosion service‑life assessments.

Q: Is it current or superseded?

A: The standard was published in May 2013 and is listed as published/confirmed (Edition 1, 2013). Users should check with their national standards body or ISO for the very latest confirmation or amendment status before procurement or formal citation.

Q: Is it part of a series?

A: Yes — ISO 1920 is a multipart series on testing of concrete; Part 11 is the chloride resistance (unidirectional diffusion) method and is commonly used alongside other ISO 1920 parts that specify additional concrete test methods.

Q: What are the key keywords?

A: Chloride resistance, chloride penetration, diffusion coefficient, concrete durability, unidirectional diffusion, hardened concrete testing.