ACI 228.4 2023

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ACI PRC-228.4-23: Visual Condition Survey of Concrete – Guide

Published By	Publication Date	Number of Pages
ACI	2023

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Category: ACI

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Description

This guide provides guidance on planning, performing, and documenting visual condition surveys of concrete structures. Chapter 1 defines the objective and scope of this guide and Chapter 2 covers terminology. Chapter 3 includes the process and tools one would use to plan and conduct a condition survey. Chapter 4 provides an image library and associated descriptions of the visual features that may be encountered when conducting the survey. Chapters 5 through Chapter 7 discuss the likely causes of the various features one might see when performing a visual condition survey. Keywords: condition survey; construction defects; cracking; deterioration; durability-related distress; surface features; survey documentation; visual survey.

PDF Catalog

PDF Pages	PDF Title
4	CHAPTER 1—INTRODUCTION AND SCOPE 1.1—Introduction 1.2—Objective and scope CHAPTER 2—DEFINITIONS 2.1—Definitions CHAPTER 3—VISUAL CONDITION SURVEY PROCESS
5	3.1—Planning and preparation 3.2—Conducting the visual condition survey
6	3.3—Supplemental tools 3.4—Documenting and reporting
7	3.5—Limitations to visual surveys CHAPTER 4—DESCRIPTION AND VISUAL LIBRARY OF FEATURES 4.1—Crack
9	4.2—Geometric features 4.3—Loss of material
11	4.4—Accretion 4.5—Staining
12	4.6—Placement features
13	CHAPTER 5—CONSTRUCTION-RELATED DEFECTS
14	5.1—Defects due to improper mixture proportioning and mixing 5.2—Defects due to improper placement and consolidation
16	5.3—Defects due to improper finishing
17	5.4—Defects due to delayed or insufficient curing
18	CHAPTER 6—DESIGN AND SERVICE-RELATED DISTRESS CONDITIONS 6.1—Distress conditions due to external loading
19	6.2—Distress conditions due to internal moisture
20	6.3—Distress due to temperature gradients CHAPTER 7—DURABILITY-RELATED DISTRESSES 7.1—Aggregate reactions
22	7.2—Chemical attack
23	7.3—Corrosion of reinforcing steel
24	7.4—Erosion 7.5—Freezing-and-thawing damage
25	7.6—Physical salt attack 7.7—Chemical sulfate attack
26	CHAPTER 8—REFERENCES
27	Authored documents