Description
This guide presents recommendations for precast concrete wall panels. It should be used with ACI 318-08, “Building Code Requirements for Structural Reinforced Concrete,” which is legally binding when adopted by the local authority. This guide discusses the basic principles of design, tolerances, materials, fabrication, installation, quality requirements, and testing.
Keywords: admixtures; aggregates; architectural concrete; coatings; cracking (fracturing); curing; deflection; design; drying shrinkage; fabrication; formwork; inspection; installation joints (junction); precast concrete panels; repairs; sandwich panels; sealants; structural design; surface defects; tolerances; volume change.
Table of Contents
Chapter 1—General considerations
1.1—Introduction
1.2—Scope
1.3—Responsibility
1.4—Aesthetic considerations
Chapter 2—Notation and definitions
2.1—Notation
2.2—Definitions
Chapter 3—Wall panel design
3.1—Introduction
3.2—Design guidelines
3.3—Effective dimensions
3.4—Limiting dimensions
3.5—Serviceability
3.6—Connections
3.7—Architectural features
Chapter 4—Tolerances
4.1—General
4.2—Reasons for tolerances
4.3—Role of the engineer/architect
4.4—Product tolerances for wall panels
4.5—Installation tolerances for wall panels
4.6—Interfacing considerations
4.7—Clearances and tolerances for constructibility
Chapter 5—Materials
5.1—Introduction
5.2—Portland cement
5.3—Aggregates for structural or backup concrete
5.4—Facing aggregates
5.5—Admixtures
5.6—Insulating materials and wythe connectors for insulated sandwich walls
5.7—Reinforcement
5.8—Inserts and miscellaneous hardware
5.9—Curing materials and sealers
5.10—Joint sealants and fillers
5.11—Chemical retarders
5.12—Form release agents
Chapter 6—Panel fabrication and delivery
6.1—General requirements
6.2—Molds (forms and casting beds)
6.3—Concrete proportioning and mixing
6.4—Reinforcement and wythe connectors
6.5—Concrete placement
6.6—Surface finishes
6.7—Concrete curing
6.8—Storage
6.9—Delivery
Chapter 7—Installation
7.1—Planning and preparation
7.2—Unloading and handling
7.3—Job site storage
7.4—Installation
7.5—Tolerances
7.6—Cleaning
7.7—Patching and repairing
Chapter 8—Quality requirements and tests
8.1—Introduction
8.2—Unacceptable defects
8.3—Structural adequacy
8.4—Prestressing
8.5—Materials
8.6—Testing fresh concrete
8.7—Testing hardened concrete
8.8—Documentation
Chapter 9—References