MNL-5(19): Contractor's Guide to Quality Concrete Construction, 4th Edition

MNL-5(19): Contractor's Guide to Quality Concrete Construction, 4th Edition

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Authors: ACI Committee E703, Concrete Construction Practices

Description

This document is published jointly by the American Concrete Institute (ACI) and the American Society of Concrete Contractors (ASCC). It has been reviewed in accordance with the Educational Committee Manual document review procedures of the ACI Educational Activities Committee. ACI and ASCC reports are intended for guidance in planning, designing, executing, and inspecting construction. This document is intended for the use of individuals who are competent to evaluate the significance and limitations of its content and recommendations and who will accept responsibility for the application of the material it contains.

Now 262 pages – over 100 pages longer than the previous edition – the guide includes full-color photos and illustrations, a new, easier-to-read layout, and substantial content updates. Also included in the fourth edition are 43 Position Statements from ASCC, details on ACI Certification programs, and an appendix introducing several legal issues of interest to concrete contractors. A summary, review questions, and additional recommended reading list accompany each of the 12 chapters.

Keywords: Contractors

 

Document Details

Pages: 264.00

ISBN: 9781641950473

Categories: Construction Practices

Formats: Printed Document or Protected PDF/Web View

Table of Contents

Chapter 1—Safety 4

Most Accidents Are Not Accidents 5

The Need for a Company Safety Program 5

Concrete Construction Hazards 5

Daily Safety Meeting 7

Experience Modification Rate and Incident Rate 7

Chapter 2—The Concrete Mixture 10

Control Tests 10

Cement 14

Other Cementitious Materials 15

Mixing Water 16

Water-Cementitious Materials Ratio 17

Aggregates 17

Admixtures 19

Concrete Mixture Design 21

Water Addition at the Jobsite 24

Set Time 25

Chapter 3—The Concrete Specification 28

Specification Formats 29

Sources for Concrete Specifications References 30

Reference Specifications 31

Specification Categories 32

Acceptance Criteria 32

Assignment of Risk 33

Strength 33

Acceptance Testing 33

Early Strength Requirements 35

Flexural Strength 35

Water-Cement Ratio (w/c) and Water-Cementitious Materials Ratio (w/cm) 36

Minimum Cement Content 36

Slump 36

Air Entrainment 37

Chemical Admixtures 38

Delivery Time for Ready Mixed Concrete 38

Hot Weather Concrete 39

Mass Concrete Placements 39

Cold Weather Concrete 39

Flatwork Finish Acceptance Criteria 40

Chapter 4—Foundations 42

The Ground Below 43

Bearing Capacity 43

Geotechnical Investigations 43

Compaction 44

Basic Foundation Types 45

Groundwater Control 48

Footing Forms 49

Moisture Control 51

Backfilling 51

Chapter 5—Formwork 54

Safety Precautions 55

Formwork Affects Concrete Quality 56

Types of Forms 57

Form Material and Hardware 64

Design of Forms 68

Placing Concrete in Forms 73

Cost of Formwork 78

Form Removal 81

Shoring and Reshoring 82

Formwork for Slabs-on-Ground and Continuous Footings 84

Chapter 6—Reinforcement in Structures 88

Why Use Steel Reinforcement? 88

Engineering and Placing Drawings 90

Types of Reinforcement 91

Reinforcing Bar Fabrication 97

Storing and Handling Reinforcing Bars on the Job 99

Concrete Cover 100

Tolerances in Placing Steel Reinforcement 100

Placing of Reinforcement 101

Bar Supports and Spacers 103

Splicing Reinforcing Steel 104

Coordination 105

Chapter 7—Joints and Embedments in Structures 108

Types of Joints in Structural Elements 109

Construction Joints for Supported Beams and Slabs 110

Contraction Joints for Walls 110

Isolation Joints for Walls 111

Construction Joints in Walls 112

Waterstops 113

Embedments 114

Anchors 117

Points to Remember 119

Chapter 8—Joints and Reinforcement for

Slabs-on-Ground 120

Volume Changes 121

Contraction (Control) Joints 121

Construction Joints 124

Isolation Joints (Expansion Joints) 125

Reinforcement in a Slab 126

Chapter 9—Planning for Quality 132

Elements of Quality Management 132

Management Responsibility 133

Quality Management System 133

The Site-Specific Quality Plan 134

Contract Review 135

Design Control 136

Document and Data Control 136

Purchasing 137

Process Control 138

Inspection and Testing 139

Control of Nonconforming Product, Corrective Action, and Preventive Action 140

Control of Quality Records 140

Training and Certification 140

Chapter 10—Preparing for Concreting 144

Contractor/Ready Mixed Concrete Producer Cooperation 145

Preconstruction Conference 147

Jobsite Preparation 150

A Checklist for Major Projects 151

Chapter 11—Concrete Placement and Finishing 174

Depositing Concrete from the Concrete Truck 174

Buggying Concrete 175

Belt Conveyors 175

Bucket Placement 176

Pumping Concrete 176

Pumping Lightweight Concrete 177

Consolidation during Placement 178

Controlling Placement 179

Hot Weather Placement 179

Cold Weather Placement 181

Vibratory Screeds 182

Finishing a Slab-on-Ground 182

Floor Surface Finish Tolerances 184

Curing to Maintain Proper Moisture Content 186

Chapter 12—Common Field Problems—

Cause and Prevention 190

Fresh Concrete 190

Hardened Concrete 196

Appendix A—Legal Issues 204

Responsibility for the Concrete Mixture 204

Concrete Defects 205

Cracking of Concrete 206

Standard of Care 209

Substantial Performance 209

Delivery Tickets and Acceptance 210

Spearin Doctrine 210

Unforeseen Conditions 210

Inspection/Observation/Supervision 211

Dispute Resolution 211

Personal Injury 212

Appendix B—ASCC Position Statements 214

Appendix C—ACI Certification Programs 258

Testing Programs 258

Inspection Programs 259

Construction/Specialist Programs

ERRATA INFO

Any applicable errata are included with individual documents at the time of purchase. Errata are not included for collections or sets of documents such as the ACI Collection. For a listing of and access to all product errata, visit the Errata page.

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