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Founded in 1904 and headquartered in Farmington Hills, Michigan, USA, the American Concrete Institute is a leading authority and resource worldwide for the development, dissemination, and adoption of its consensus-based standards, technical resources, educational programs, and proven expertise for individuals and organizations involved in concrete design, construction, and materials, who share a commitment to pursuing the best use of concrete.
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Home > Publications > Collection Online > Collection Search
Fly ash is used in concrete and other portland cement-based systems primarily because of its pozzolanic and cementitious properties. These properties contribute to strength gain and are known to improve the performance of fresh and hardened concrete, mortar, and grout. The use of fly ash typically results in more economical concrete construction. This report gives an overview of the origin and properties of fly ash, its effect on the properties of hydraulic cement concrete, and the selection and use of fly ash in the production of hydraulic cement concrete and concrete products. Information and recommendations concerning the selection and use of Class C and Class F fly ashes conforming to the requirements of ASTM C618 are provided. Topics covered include a detailed description of the composition of fly ash, the physical and chemical effects of fly ash on properties of concrete, guidance on the handling and use of fly ash in concrete construction, use of fly ash in the production of concrete products and specialty concretes, and recommended procedures for quality control. High-volume fly ash concrete is covered in a general way in this report; readers can consult ACI 232.3R for more information.
The Collection Online includes all new committee standards and reports released throughout the year. The most recently added include:
PRC-546.3-23: Materials Selection for Concrete Repair—Guide
PRC-546-23: Concrete Repair—Guide
PRC-228.4-23: Visual Condition Survey of Concrete—Guide
SPEC-544.12-23: Performance-Based Fiber-Reinforced Concrete for Slabs-on-Ground and Overlays—Specification
SPEC-548.10-22: Type Methyl Methacrylate Slurry (MMS) Polymer Overlays for Bridge and Parking Garage Deck—Specification
CODE-437.2-22: Load Testing of Concrete Structures - Code and Commentary (SI Units)
PRC-440.2-23: Design and Construction of Externally Bonded Fiber-Reinforced Polymer (FRP) Systems for Strengthening Concrete Structures—Guide
PRC-225-23 Guide to the Selection and Use of Hydraulic Cements
350-20: Code Requirements for Environmental Engineering Concrete Structures (350-20) and Commentary (350R-20) (SI Units)
CODE-307-23: Requirements for Reinforced Concrete Chimneys—Code and Commentary