Description

506R-16: Guide to Shotcrete

This guide provides information on materials and properties of both dry-mix and wet-mix shotcrete. Most facets of the shotcrete process are covered, including application procedures, equipment requirements, and responsibilities of the shotcrete crew. Other aspects, such as preconstruction trials, craftsman qualification tests, materials tests, finished shotcrete acceptance tests, and equipment, are also discussed.

506.2-13: Specification for Shotcrete

This specification contains the construction requirements for the application of shotcrete. Both wet- and dry-mixture shotcrete are addressed, as well as fiber-reinforced shotcrete. The minimum standard for materials, properties, testing, and application are covered.

Contents: 506-16: GUIDE TO SHOTCRETE

PREFACE

Introduction

History

Applications

New developments

Research and development

PART 1—GENERAL

1.1—Scope

1.2—Definitions

1.3—References: See Part 7—References

1.4—Submittals

1.5—Preconstruction testing by contractor

1.6—Testing during construction: quality assurance and quality control

1.7—Delivery, storage, and handling

PART 2—PRODUCTS

2.1—Materials

2.2—Packaged shotcrete materials

2.3—Fiber-reinforced shotcrete

2.4—Shotcrete properties

2.5—Proportioning

2.6—Batching and mixing

PART 3—EXECUTION

3.1—Surface preparation

3.2—Joints

3.3—Alignment control

3.4—Application

3.5—Finishing

3.6—Curing

3.7—Protection

3.8—Tolerances

3.9—Repair

3.10—Acceptance

PART 4—EQUIPMENT

4.1—Introduction

4.2—Dry-mix equipment

4.3—Wet-mix equipment

4.4—Air requirements

4.5—Mixing equipment

4.6—Hoses

4.7—Nozzles

4.8—Auxiliary equipment

4.9—Plant layout and operation

4.10—Other uses of shotcrete equipment

PART 5—CREW ORGANIZATION

5.1—Introduction

5.2—Composition and crew duties

5.3—Crew qualifications

5.4—Communication

PART 6—SUSTAINABILITY

6.1—Shotcrete sustainability

6.2—Formwork reduction or elimination

6.3—Construction efficiency

6.4—Repair and rehabilitation

6.5—Creativity and efficiency of shotcrete sections

6.6—Summary

PART 7—REFERENCES

Authored references

506.2-13: SPECIFICATION FOR SHOTCRETE

PART 1—GENERAL

1.1—SCOPE

1.2—DEFINITIONS

1.3—REFERENCED STANDARDS

1.4—SUBMITTALS

1.5—PRECONSTRUCTION TESTING BY CONTRACTOR

1.6—TESTING DURING CONSTRUCTION

1.7—DELIVERY, STORAGE, AND HANDLING

PART 2—PRODUCTS

2.1—MATERIALS

2.2—PACKAGED SHOTCRETE MATERIALS

2.3—FIBER-REINFORCED SHOTCRETE

2.4—SHOTCRETE PROPERTIES

2.5—PROPORTIONING

2.6—BATCHING, MIXING, AND DELIVERY

PART 3—EXECUTION

3.1—PREPARATION OF SURFACE TO RECEIVE SHOTCRETE

3.2—JOINTS

3.3—ALIGNMENT CONTROL

3.4—APPLICATION

3.5—FINISH

3.6—CURING

3.7—PROTECTION

3.8—TOLERANCES

3.9—REPAIR OF SHOTCRETE

3.10—ACCEPTANCE OF WOR

(NONMANDATORY PORTION FOLLOWS)

NOTES TO SPECIFIER

GENERAL NOTES

FOREWORD TO CHECKLISTS

CHECKLIST REFERENCES

(MANDATORY PORTION FOLLOWS)