ACI-232.2R-2003.pdf
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1、B ational“ AC1 232.2R-03 Use of Fly Ash in Concrete Reported by AC1 Committee 232 american concrete institute PO. BOX 9094 FARMINGTON HILLS, MICHIGAN 48333-9094 Copyright American Concrete Institute Provided by IHS under license with ACI Licensee=IHS Employees/1111111001, User=listmgr, listmgr Not f
2、or Resale, 03/05/2007 01:54:22 MSTNo reproduction or networking permitted without license from IHS -,-,- First Printing, March 2004 Use of Fly Ash in Concrete Most AC1 Standards and committee reports are gathered together in the annually revised AC1 Manual of Concrete Practice. The sev- eral volumes
3、 are arranged to group related material together and may be purchased in- dividually or in setS.The AC1 Manual of Con- Crete Practice is also available on CD-ROM. AC1 Committees prepare standards and reports in the general areas of materials and properties of concrete, construction practices and ins
4、pection, pavements and slabs, struc- tural design and analysis, structural specifica- tions, and special products and processes. A complete catalog of all AC1 publications is available without charge. American Concrete Institute P.O. Box 9094 Farmington Hills, MI 48333-9094 AC1 Certification Program
5、s The final quality of a concrete structure depends on qualified people to construct it. AC1 certification pro- grams identify craftsmen, technicians, and inspectors who have demonstrated their qualifications. The follow- ing programs are administered by AC1 to fulfill the grow- ing demand in the in
6、dustry for certified workers: Enhancement of AC1 Documents The technical committees responsible for AC1 committee reports and standards strive to avoid ambiguities, omis- sions, and errors in these documents. In spite of these efforts, the users of AC1 documents occasionally find information or requ
7、irements that may be subject to more than one interpretation or may be incomplete or incorrect. Concrete Flatwork Finisher To assist in the effort for accuracy and clarity, the Technical Activities Committee solicits the help of indi- Concrete Flatwork Technician Concrete Field Testing Technician-Gr
8、ade I viduals using AC1 reports and standards in identifying and eliminating problems that may be associated with Concrete Strength Testing Technician Concrete Laboratory Testing Technician-Grade I their use. Users who have suggestions for the improvement of AC1 documents are requested to contact th
9、e AC1 Engi- Concrete Laboratory Testing Technician-Grade il Concrete Construction Inspector Concrete Transportation Construction Inspector-In- Training This document may already contain reference to these AC1 certification programs, which can be incorporated into project specifications or quality co
10、ntrol procedures. If not, suggested guide specifications are available on request from the AC1 Certification Department. neering Department in writing, with the following infor- 1. Title and number of the document containing the problem and specific section in the document; 2. Concise description of
11、 the problem; 3. If possible, suggested revisions for mitigating the The Institutes Engineering Staff will review and take appropriate action on all comments and suggestions received. Members as well as nonmembers of the Insti- tute are encouraged to assist in enhancing the accuracy and usefulness o
12、f AC1 documents. Concrete Construction Inspector-In-Training mation: Concrete Transportation Construction Inspector problem. ISBN 0-87031 -1 37-9 Copyright American Concrete Institute Provided by IHS under license with ACI Licensee=IHS Employees/1111111001, User=listmgr, listmgr Not for Resale, 03/0
13、5/2007 01:54:22 MSTNo reproduction or networking permitted without license from IHS -,-,- AC1 232.2R-03 Use of Fly Ash in Concrete Reported by AC1 Committee 232 Moms “Skip” Huffman* Chair Michael D. A. Thomas Vice Chair Karen A. Gruber Secretary Gregory S. Barger Alain Bilodeau Mark A. Bury Ramon L.
14、 Carrasquillo James E. Cook Douglas W. Deno Barry A. Descheneaux Jonathan E. Dongell Thomas A. Fox Dean M. Golden William Halczak Buffey J. Hauptmann Roy K. Heaps Russell L. Hill* R. Doug Hooton Howard J. Humphrey Jim S. Jensen Steven H. Kosmatka Ronald L. Larsen William J. Lyons, III V. M. Malhotra
15、 Bryant Mather+ Tanin R. Naik Robert E. Neal Karthik H. Obla Terry Patzias Sandor Popovics Bruce W. Ramme Dan Ravina D. V. Reddy Anthony G. Reed Harry C. Roof Della M. Roy Caijun Shi Ava Shypula Peter G. Snow Bons Y. Stein Paul J. Tikalsky Orville R. Werner II Min-Hong Zhang *Subcommittee co-chair o
16、f this report. +Deceased. Fly ash is used in concrete and other cement-based systems primarily because o f its pozzolanic and cementitious properties. These properties contribute to strength gain and may improve the performance o f fresh and hardened concrete, morta; and grout. The use ofjly ash may
17、 result in more economical concrete construction. This report gives an overview o f the origin and properties of jly ash, its effect on the properties o f hydraulic cement concrete, and the proper selection and use ofjy ash in the production o f hydraulic cement concrete and concrete products. Infor
18、mation and recommendations concerning the selection and use o f Class C and Class Fjy ashes generally conforming to the requirements o f ASTM C 618 are provided. Topics covered include a detailed description o f the composition ofjy ash, the physical and chemical effects ofjy ash on pmperiies of con
19、crete, guidance on the handling and use of jly ash in concrete construction, use offly ash in the production o f concrete products andspecialty concrete, and recommended procedures for quality control. Relevant documents o f standards-making bodies referred to in this document are cited and listed.
20、AC1 Committee Reports, Guides, Standard Practices, and Commentaries are intended for guidance in planning, designing, executing, and inspecting construction. This document is intended for the use of individuais who are competent to evaluate the significance and limitations of its content and recomme
21、ndations and who will accept responsibility for the application of the material it contains. The American Concrete Institute disclaims any and ali responsibility for the stated principles. The Institute shall not be liable for any loss or damage arising therefrom. Reference to this document shall no
22、t be made in contract documents. If items found in this document are desired by the Architecangineer to be a part of the contract documents, they shall be restated in mandatory language for incorporation by the Architecangineer. Keywords: abrasion resistance; admixture; alkali-aggregate reaction; co
23、ncrete pavement; controlled low-strength material; drying shrinkage; durability; efflorescence; fineness; fly ash; hydraulic cement; mass concrete; mixture proportion; pozzolan; precast concrete; quality control; reinforced concrete; roller-compacted concrete; soil cement; strength; sulfate resistan
24、ce; workability. CONTENTS Chapter 1-General, p. 232.2R-2 1 .I-Introduction 1.2-Source of fly ash It is the responsibility of the user of this document to establish health and safety practices appropriate to the specific circumstances involved with its use. AC1 does not make any representations with
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