ISO/TS 16774-5:2024

Name: ISO/TS 16774-5:2024 — Test methods for repair materials for water-leakage cracks in underground concrete structures — Part 5: Test method for watertightness
SKU: ISO/TS 16774-5:2024
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Test methods for repair materials for water-leakage cracks in underground concrete structures — Part 5: Test method for watertightness

Название (английский):

ISO/TS 16774-5:2024

Test methods for repair materials for water-leakage cracks in underground concrete structures — Part 5: Test method for watertightness

Статус документа:: Действующий
Формат:: Электронный (PDF)
Количество страниц:: 15
Дата публикации:: 16 августа 2024 г.
Издание:: ISO TS 16774 edition 2 version 1
ICS:: 91.080.40

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Описание (английский):

This document specifies a laboratory test method for evaluating watertightness of water-leakage crack repair materials through permeability testing. This document outlines general principles and procedures for the test method. This document does not specify specific variables that control the quantifiable parameters of the testing.

Abstract

Похожие стандарты

Упомянутые в описании и другие стандарты ISO

Overview

ISO/TS 16774-5:2024 - Test methods for repair materials for water-leakage cracks in underground concrete structures - Part 5 specifies a laboratory permeability test method to evaluate the watertightness of injection-type repair materials used to stop water leaking through cracks in underground concrete. The document defines principles, specimen preparation, apparatus, test procedure and reporting requirements. It provides a qualitative, comparative framework rather than prescribing exact numerical acceptance criteria.

Key topics and requirements

Scope and principle

Evaluates impermeability of repair materials by applying hydrostatic pressure to a specimen with an artificial crack and observing leakage.
Intended for comparative performance evaluation of materials of the same family.

Specimen preparation

Test specimens are formed from two cured concrete/mortar parts with a controlled artificial crack (spacers set crack width).
Pinholes (Ø 2.5 mm) may be drilled through the bottom substrate to detect leakage during injection and testing.
Substrate mix and curing guidance are given (example mix ratio and ~72 h curing noted), but national parameters can vary.

Apparatus

Air compressor and a permeability test chamber capable of the specified pressure ranges (document cites a water/air pressure range around 0.1 to 0.3 N/mm² as an example).

Ambient and test conditions

Standard laboratory ambient example: (22 ± 2) °C and (55 ± 5) % RH, with allowance for national variations.
Injection method, pressure profiles and other variables are left to national practice or manufacturer instructions.

Procedure and results

Place specimen in chamber, fill with water, apply pressure, observe and document leakage.
Results are mainly qualitative (pass/fail or leaking/non-leaking under applied pressure) and intended for building a comparative database.

Test reporting

Detailed reporting requirements: material producer, production data, chemical composition, specimen geometry, lab conditions, test data, deviations, photos and observations.

Applications and stakeholders

Useful for:

Material manufacturers developing or validating injection grouts (urethane, polyurea, mastic, etc.).
Independent testing laboratories establishing comparative watertightness profiles.
Contractors and repair specifiers selecting appropriate products for underground concrete repairs.
Asset owners and infrastructure engineers seeking documented comparative performance for procurement decisions.
Researchers and R&D teams benchmarking new formulations.

Practical value: provides a reproducible laboratory protocol to compare products’ resistance to hydrostatic leakage and to document test conditions for regulatory or contractual purposes.

Related standards

ISO/TR 16475 - General practices for the repair of water-leakage cracks in concrete structures (referenced and linked to the 16774 series).

Other parts of the ISO/TS 16774 series (for complementary property test methods and guidance).

Keywords: ISO/TS 16774-5:2024, watertightness test method, permeability testing, repair materials, water-leakage cracks, underground concrete structures, injection grouts.

ISO/TS 16774-5:2024

Abstract

Похожие стандарты

Overview

Key topics and requirements

Applications and stakeholders

Related standards

Технические детали

ISO/TR 16475:2011

Guidelines for the repair of water-leakage cracks in concrete structures

ISO/TS 16774-5:2017

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