ISO 16311-3:2014 コンクリート構造物のメンテナンスと修理  —  パート3：修理と予防の設計 | ページ 2

Foreword

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The committee responsible for this document is ISO/TC 71, Concrete, reinforced concrete and pre-stressed concrete, Subcommittee SC 7, Maintenance and repair of concrete structures.

ISO 16311 consists of the following parts, under the general title Maintenance and repair of concrete structures:

• Part 1: General principles
• Part 2: Assessment of existing concrete structures
• Part 3: Design of repairs and prevention
• Part 4: Execution of repairs and prevention

Introduction

The repair and prevention of defects and deterioration in concrete structures requires complex design work. This part of ISO 16311 defines the design principles, strategies, remedies, and methods for preventing accelerated deterioration and the repair of concrete structures that have suffered or may suffer damage or deterioration. It gives guidance on the choice of repair design principles, strategies, remedies, methods, and selection of products and systems which are appropriate for the intended use.

This part of ISO 16311 identifies key stages in the repair process:

• the need for assessment of the condition of the structure;
• the need for identification of the causes of deterioration;
• evaluating the options for repair and prevention, and decision-making;
• the selection of the appropriate remedies for repair and prevention;
• the selection of methods;
• the definition of properties of products and systems;
• the specification of maintenance requirements following repair and prevention.

This part of ISO 16311 does not deal with matters related to structural design and the verification of structural performance in both deteriorated and repaired condition. The information related to the deteriorated condition is presented in ISO 16311-2.

This part of ISO 16311 contains an Annex A which provides guidance and background information on the normative text.

1 Scope

This part of ISO 16311 defines basic considerations and decision-making for the specification of repair and prevention remedies, and management strategies for reinforced and unreinforced concrete structures using products and systems specified in other International Standards or Technical Specifications. This part of ISO 16311 covers only atmospherically exposed structures, and buried or submerged structures, if they can be accessed.

This part of ISO 16311 specifies repair and prevention design principles, and strategies for defects and on-going deterioration including, but not limited to:

• a) mechanical actions, e.g. impact, overloading, movement caused by settlement, blast, vibration, and seismic actions;
• b) chemical and biological actions from environments, e.g. sulfate attack, alkali-aggregate reaction;
• c) physical actions, e.g. freeze–thaw, thermal cracking, moisture movement, salt crystallization, fire, and erosion;
• d) reinforcement corrosion;
• e) original construction defects that remained unaddressed from the time of construction.

The execution of maintenance and repairs is covered in ISO 16311-4.

Further background information on the scope of this part of ISO 16311 is given in Annex A.

2 Normative references

The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. 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 16311-1 and the following apply.

Bibliography