ISO/TS 16774-3:2023 地下コンクリート構造物の漏水ひび割れ補修材の試験方法Part 3耐水（洗い流し）性試験方法 | ページ 2

Foreword

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The procedures used to develop this document and those intended for its further maintenance are described in the ISO/IEC Directives, Part 1. In particular, the different approval criteria needed for the different types of ISO documents should be noted. This document was drafted in accordance with the editorial rules of the ISO/IEC Directives, Part 2 (see www.iso.org/directives ).

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This document was prepared by Technical Committee ISO/TC 71, Concrete, reinforced concrete and pre-stressed concrete, Subcommittee SC 7, Maintenance and repair of concrete structures.

This second edition cancels and replaces the first edition (ISO/TS 16774-3:2016) which has been technically revised.

The main changes are as follows:

— ambient conditions in 6.2 and A.3.2 have been modified;

— some clarifications have been made in Clause 7 and 9.2;

— some editorial corrections have been made.

A list of all parts in the ISO 16774 series can be found on the ISO website.

Introduction

This document is linked to ISO/TR 16475 . ISO/TR 16475 outlines six basic properties and the required performance levels of water leakage repair materials, and the ISO/TS 16774 series proposes sample testing methods that are capable of evaluating the respective properties of the repair materials.

The test methods in this document are intended to serve as references for nations that have not yet developed a test method on the six required performance properties of water leakage repair materials. If other forms of test methods that are simpler, more accurate or more organized are available, such methods are recommended for use instead. Many of the dependent variables outlined in the reference test methods of this document are subject to change in accordance with the environmental conditions (temperature and humidity, chemical solution and concentration, width of movement activity, water pressure or water flow velocity, etc.) outlined in the standards used in respective countries.

For ISO/TS 16774-1, ISO/TS 16774-5 and ISO/TS 16774-6, for the purpose of objectively comparing the performance of injected repair materials, artificial cracks of same width, height, and volume were used to control the usage of repair materials for each testing cycle and enable repetition of the same test methods under the same conditions.

1 Scope

This document specifies a laboratory test method on the quantitative determination of repair materials performance and resistance against erosion and wash out due to underground water flow.

2 Normative references

The following documents are referred to in the text in such a way that some or all of their content constitutes requirements of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.

3 Terms and definitions

For the purposes of this document, the terms and definitions given in ISO/TR 16475 and the following apply.

ISO and IEC maintain terminology databases for use in standardization at the following addresses:

Bibliography