Code Requirements for Residential Concrete and Commentary. All rights reserved. This material may not be reproduced or copied, in whole or part, in any printed, mechanical, electronic, film, or other distribution and storage media, without the written consent of ACI. The technical committees responsible for ACI committee reports and standards strive to avoid ambiguities, omissions, and errors in these documents. In spite of these efforts, the users of ACI documents occasionally find information or requirements that may be subject to more than one interpretation or may be incomplete or incorrect. Proper use of this document includes periodically checking for errata at www.
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Code Requirements for Residential Concrete and Commentary. All rights reserved. This material may not be reproduced or copied, in whole or part, in any printed, mechanical, electronic, film, or other distribution and storage media, without the written consent of ACI. The technical committees responsible for ACI committee reports and standards strive to avoid ambiguities, omissions, and errors in these documents.
In spite of these efforts, the users of ACI documents occasionally find information or requirements that may be subject to more than one interpretation or may be incomplete or incorrect.
Proper use of this document includes periodically checking for errata at www. ACI committee documents are intended for the use of individuals who are competent to evaluate the significance and limitations of its content and recommendations and who will accept responsibility for the application of the material it contains.
Individuals who use this publication in any way assume all risk and accept total responsibility for the application and use of this information.
ACI and its members disclaim liability for damages of any kind, including any special, indirect, incidental, or consequential damages, including without limitation, lost revenues or lost profits, which may result from the use of this publication. 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.
ACI does not make any representations with regard to health and safety issues and the use of this document. The user must determine the applicability of all regulatory limitations before applying the document and must comply with all applicable laws and regulations, including but not limited to, United States Occupational Safety and Health Administration OSHA health and safety standards.
Phone: Fax: www. Baty, II Chair Secretary. Brent D. Anderson Thomas L. Carter Said Iravani T. George Muste Robert B. Anderson Michael W. Cook Raj K. Jalla Royce J. Rhoads William L. Arent Jerry D. Balik Barry A.
Descheneaux Tarek S. Khan J. Edward Sauter Robert T. Bartley Nader R. Elhajj Richard Kinchen Robert E. Sculthorpe Claude J. Bergeron Robert L. Henry Joseph Knarich Michael H. Weber Glen E. Bollin Barry Herbert Lionel A. Lemay Kevin D. Wolf Kenneth B. Bondy Scott R. Humphreys Warren E. McPherson, Jr. Carla V. The code is written in a format that allows adoption by reference in a Chapter 2—Notation and definitions, p.
Background details 2. The commentary is provided for this purpose. The commentary discusses some of the considerations of the committee in Chapter 3—Materials, p. Chapter 4—Concrete requirements, p. All rights reserved including rights of reproduction and use in any form or by any concrete; reinforcing steels; residential; serviceability; slab-on-ground; means, including the making of copies by any photo process, or by electronic or specifications; strength; structural analysis; structural concrete; structural mechanical device, printed, written, or oral, or recording for sound or visual reproduction or for use in any knowledge or retrieval system or device, unless permission in writing design; sulfates exposure; walls; water; welded wire reinforcement.
Chapter 5—Concrete production and placement, foundation walls constructed with removable forms or with p. The provisions for above- 7. Guidance on the requirements for post- tensioned slabs-on-ground can be found in the Post-Tensioning Chapter 8—Slabs-on-ground, p.
Chapter 9—References, p. In areas without This board shall have authority to investigate the data so a legally adopted building code, this code defines minimum submitted, to require tests, and to formulate rules governing acceptable standards of design and construction practice. These rules, when approved by the building official applicable general building code for all applied loads to and promulgated, shall be of the same force and effect as the determine the applicable values for design requirements.
In provisions of this code. Hence, good systems or governs matters pertaining to design and construction of components might be excluded from use by implication if cast-in-place concrete construction for one- and two-family means were not available to obtain acceptance. For systems dwellings and multiple single-family dwellings townhouses , considered under this section, specific tests, load factors, and their accessory structures, except wherever this code is deflection limits, and other pertinent requirements should be in conflict with requirements in the legally adopted general set by the board of examiners, and should be consistent with building code.
Air-cooled blast-furnace slag is the material resulting which this code forms a part, or determined by local authority. Expanded blast-furnace slag is the low-density, cellular covered by the design provisions or prescriptive tables of this material obtained by controlled processing of molten blast- code shall require the seal of a licensed design professional.
Granulated blast-furnace slag is the glassy, granular The construction of all concrete elements covered by this material formed when molten blast-furnace slag is rapidly code shall be inspected as required by the legally adopted chilled, as by immersion in water; and general building code.
Slag cement is granulated blast-furnace slag that has been finely ground and is a hydraulic cement. Commentary is given in interruption is planned or anticipated. Water-reducing admixtures concrete, plain—structural concrete with no reinforcement result in large to moderate water reductions in mixtures or with less reinforcement than the specified minimum while maintaining greater flowability without causing undue amount specified in ACI for reinforced concrete, except set retardation or air entrainment.
An important aspect of dating cementitious mixture that is intended to result in a air entrainment is the uniform distribution of air bubbles to compressive strength of psi or less. See also fly ash; silica fume; slag cement. See also joint, contraction. Concrete shall meet the requirements of 4. Concrete strength, slump, and air entrainment shall be 3. Admixtures for flowing concrete shall chemicals.
Refer to ACI The specified yield strength of reinforcement supplier should provide delivery ticket information in shall not be less than 40, psi. Technician during time of placement should be tested 3. Maturity software can 3. A maximum of 9 in. If slump verification is required, requirements. A traditional slump limit is not appropriate for self- 3. Slump flow in the range of 24 to 28 in. Refer to ACI R. Table 4. Notes: range water-reducing admixtures. Local areas can be more or less severe than indicated by the region Table 4.
Moderate Severe moisture during frequent cycles of freezing and thawing. If concrete fails to meet the specified minimum air- R4. Additional tests should then be taken to verify the increase. The materials following: shall comply with Section 3. This is particularly true where the predominant 4.
Thus, it is preferable 4. The job site may be used to increase the slump of flowing requirements shall not apply to slabs-on-ground, except for concrete when it falls below the desired slump. After an thickened slab footings. Concrete cover shall have achieve flowable concrete, do not add water to the concrete. This section refers to 5. Such areas shall also be free concrete directly contacting the earth. For structural plain concrete subject to other service conditions, and for all reinforced concrete, calcium 5.
Gaynor gives guidance on calculating the R5. A maturity containing intentionally added chloride ions, shall not be curve for a particular mixture, available from the concrete used in concrete containing aluminum or dissimilar metals. During hot weather, proper attention shall be given to R5. Experience has protection, and curing of concrete to prevent excessive concrete shown that the minute discharge time can be exceeded temperatures or water evaporation that could impair required while maintaining the specified concrete properties during strength or serviceability of the member or structure.
Refer to ACI R for information on hot-weather proportion. Footings not supported wall thickness plus 4 in. Isolated footings are also referred to building code or obtained from a geotechnical report. The top For footings designed by this code, the attributes limited in surface of footings shall be level within the tolerances Table 6.
Accordingly, CKC has become an important tool for all professionals involved with concrete construction; designers, engineers, and contractors to students and The article discusses some common examples where designing individual concrete members to minimum overall dimension can create problems. The examples include piers and pier caps, spread footings, grade beams, columns, walls and tilt-up wall panels. According to the author, by addressing the The article offers information on the attributes and differences between sloped and stepped footings that are used as walls of structures in the U. The sloped footing looks beautiful and appealing because of its geometry and ease in formwork construction as compared with that of the stepped The article discusses the history behind the changes to Chapter 14 of the American Concrete Institute ACI Committee building code requirements for structural concrete and reinforced concrete.
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