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Guide to Diagnosis and Appraisal of AAR Damage to Concrete in Structures [electronic resource] : Part 1 Diagnosis (AAR 6.1) / edited by Bruno Godart, Mario de Rooij, Jonathan G.M. Wood.

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Table of Contents

	1. Introduction: 1.1 Why the need for a diagnosis document
	1.2 Scope
	1.3 Definitions
	2 Alkali-Aggregate Reaction: 2.1 Introduction
	2.2 Alkali
	2.3 Aggregates
	2.4 Water
	2.5 Pessimum behaviour
	2.6 Summary
	3 Symptoms of an expansive reaction during routine inspection: 3.1 General inspection remarks
	3.2 Review of existing records
	3.3 Planning of a comprehensive on-site inspection
	3.4 The routine on-site inspection
	3.5 Concrete surface features suggestive of AAR
	3.6 First assessment of field observations
	4 Confirmation investigation: 4.1 Introduction
	4.2 Available methods, personnel and expertise
	4.3 Approach for diagnosis of AAR in structures
	4.4 On-site sampling for AAR confirmation
	4.5 Visual examination of cores
	4.6 Petrographic examination
	4.7 Additional tests
	5 Severity investigation: 5.1 Introduction
	5.2 Field investigation
	5.3 Laboratory tests
	5.4 Summary of diagnosis
	6 Reporting: 6.1 Purpose
	6.2 Scope
	6.3 Objectives of the investigation
	6.4 Information concerning the structures
	6.5 Methods and techniques used
	6.6 Interpretation of results
	6.7 Conclusions
	6.8 Author
	References
	Appendix 1. Proceedings of ICAAR
	Appendix 2. Diagnosis of AAR within an overall investigation.