Description
This guide is a companion document to ACI 506.2, “Specification for Shotcrete,” and 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.
Keywords: dry-mix shotcrete; mixture proportion; placing; quality control; shotcrete; wet-mix shotcrete.
Table of Contents
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
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