This guide lists industrystandard tolerances and presents recommendations for mitigating tolerance conflicts related to embedded items, elevator cores and hoistways, openings in slabs and walls, manufactured couplers and splicing systems for reinforcing \. Specification for tolerances for concrete construction and materials aci 117m10 and commentary. The floor flatness report what the designer needs to know. Dec 19, 2010 aci 117 includes tolerances for fabrication, placement, cover, thickness, and elevation. Specification for tolerances for concrete construction and materials aci 117 10 and commentary aci 117 10 aci committee 506 on. Even if the concrete contractor pours the concrete and finishes it to the specified floor flatness requirement, as stated in aci 117 specification for tolerances for concrete. The need to specify tolerances from among the possible definitions of tolerance the one we have chosen to use in this article is given in cement and concrete terminology, by american concrete institute aci committee 116. Sep 11, 2017 save this book to read aci 117 10 specification for tolerances concrete pdf ebook at our online library.
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 consensusbased standards, technical resources, educational programs, and proven expertise for individuals and organizations involved in concrete. Aci tolerances for concrete construction concrete construction. Movements that affect tolerance measurements, concrete international, aci, july 2016. This variation can usually be in either of two directions. I hesitate to make different tolerances since the industry prices work based on the state of the practice. Aci 302 also provides guidelines for the placing and finishing of concrete floor slab construction for the fnumber system.
No structure is exactly level, plumb, straight, and true, so all construction and materials should be specified with tolerances limiting deviation from design values. Section 4, castinplace concrete for buildings, doesnt mention walls. Aci 117 90 requires no level alignment tolerance for the concrete because levelness depends on the location and placement of the supporting structure and, after the concrete is placed, deflection of the supporting structure. Specification for tolerances for concrete construction and. The steel, precast erector, or both dictate the floor elevation relative to the design elevation. The adjacent figure shows a birdbath at the valley of a slab surface profile under a 10 ft. Cement and concrete terminology, by american concrete institute. Aci 347r14 describes four categories of formed concrete surfaces, same as in aci 117tolerances aci 303r12 addresses architectural concrete ascc educational and training committee uses samples to illustrate expectations no longer available aci 309r05 provides information on consolidation of concrete and visible effects. This is particularly critical when the embeds have very thick plates photo courtesy of bruce suprenant fig. Guide to formed concrete surfaces presented by technical. All recommendations are directed at constructability cost, jobsite safety, and schedule issues, not the structural capacity of the plate or anchors. Dec 01, 2015 understanding aci 117 tolerance language. The variation from the straightedge is typically expressed as a maximum deviation value over the straightedge length but can be assessed by the method provided in aci 1174.
Aci tolerances for fabricated reinforcing bars have been developed by crsi. Constructability of embedded steel plates in castinplace. Jan 24, 2007 other tolerances in this section dictate the maximum deviation from the planned location of the top surface elevation and the crosssectional dimensions of piers and footings. Aci 117 is the industry standard for the use of the fnumber system and establishes the fnumbers of different types of floors as well as the definitions of acceptable variances. Guide for tolerance compatibility in concrete construction author. Correlation between division 3 floor flatness ff and floor. Specification for tolerances for concrete construction and materials aci 117 10 and commentary aci 117r10 this specification designates standard tolerances for concrete construction. Click download or read online button to get aci 117 1r 14 guide for tolerance compatibility in concrete construction book now. Aci 11790, standard specifications for tolerances for concrete construction and materials, gives only two tolerances for these applications. This report is a commentary on the specifications for tolerances for concrete construction and materials aci 117. Aci 117 specification for tolerances for concrete construction and.
Aci 117 specification for tolerances for concrete construction. Aci 347r14 describes four categories of formed concrete surfaces, same as in aci 117 tolerances aci 303r12 addresses architectural concrete ascc educational and training committee uses samples to illustrate expectations no longer available aci 309r05 provides information on consolidation of concrete and visible effects. Even if the concrete contractor pours the concrete and finishes it to the specified floor flatness requirement, as stated in aci 117 specification for tolerances for concrete construction and materials, the f f. Specification for tolerances for concrete construction and materials aci 11710 and commentary aci 117r10. Eliminating birdbaths would require zero tolerances. Tolerances for concrete foundation construction as per aci. All acl tolerances are now being consolidated under the auspices of acl committee 117, tolerances. Design chapter 17, anchoring to concrete, in aci 318141 provides design requirements for anchors in concrete used to. The challenge facing the designconstruction team is to identify and remove conflicts prior to construction. Get aci 117 10 specification for tolerances concrete pdf file for free from our online library.
Aci 11710 specification for tolerances for concrete construction. Pdf aci 11706 specifications for tolerances for concrete. Specification for tolerances for concrete construction and materials aci 11710 and. Tolerances are typically divided into three primary categories. Aci 117 tolerance conflicts concrete construction magazine. Other tolerances in this section dictate the maximum deviation from the planned location of the top surface elevation and the crosssectional dimensions of piers and footings. Jul 02, 2019 aci 11706 pdf read aci specifications for tolerances for concrete construction and materials and commentary by american concrete institute aci for free with a 30. Aci 117m10 specification for tolerances for concrete construction and materials and commentary metric provides standard tolerances for concrete construction and materials.
The committee has developed standard tolerances for concrete construction materials. Tolerances and suggested methods of mitigating tolerance conflicts for common concrete construction procedures and typical construction materials that interface with or connect to concrete. This is an organisation of concrete contractors that outlines problems with what. Aci 117 includes tolerances for fabrication, placement, cover, thickness, and elevation.
Tolerances for the floors placed on these suspended systems are often misunderstood. Examples aci 117 contd placement of prestressing reinforcement or prestressingducts horizontal deviation. Get aci 117 10 specification for tolerances concrete pdf. Aci117m10 specification for tolerances for concrete. Tolerances for concrete construction from aci 117 and other industry standards developed by trade and standards writing organizations are discussed. Aci committee 117, specifications for tolerances for concrete construction and materials and commentary aci 117 10, american concrete institute, farmington hills, mi, 2010, 76 pp. Can somebody let me know what the tolerances are for straightness, plumbness, and what i would describe as true the wall is bowed in the middle. It is intended to be used with aci 117 for clarity of interpretation and insight into the intent of the committee regarding the application of the tolerances set forth therein. The institute publishes more than 400 technical standards, reports and manuals on testing, inspection, cracking and failure, building code requirements, and related topics. This guide lists industrystandard tolerances and presents recommendations for mitigating tolerance conflicts related to embedded items, elevator cores and hoistways, openings in slabs and walls, manufactured couplers and splicing systems for reinforcing \ bars, stairs, cladding.
Standards and specifications when specifying tolerances for concrete work, reference is often made to the australian. Save this book to read aci 117 10 specification for tolerances concrete pdf ebook at our online library. Section 4 is the longest part of aci 117, covering tolerances for castinplace concrete for buildings, including walls, floors, and slabs. Anchor bolt tolerances american society of concrete. Code and standards requirements for acceptance testing. The standard also suggests other tolerances not published here for precast and precastprestressed members, mass concrete structures, tunnel linings and castinplace conduits, slipformed structures, canal linings, siphons, culverts, bridges and similar structures.
Aci 117 10 specification for tolerances concrete by. History of aci 117 tolerance 1990 aci adopts standard specification for tolerances for concrete construction 2006 aci 117 06 document was published. Tolerances in this specification are for typical concrete construction and construction procedures and are applicable to exposed concrete and to architectural concrete. Aci 117 06 specifications for tolerances for concrete construction and materials and commentary mycivil. This site is like a library, use search box in the widget to. What is an acceptable tolerance for topofwall elevation. Standard specifications for tolerances for concrete construction and materials aci 11790 reported 1172 manual of concrete. Aci 347 permitted a tolerance of 116 inch per foot3 in the slope of a floor but the investigators concluded that a more realistic tolerance might be tolerances suggested by aci for reinforced concrete buildings variations from the plumb. Fresh concrete tests slump or slump flow tolerances in astm c94. American concrete institute aci aci 117 specification for tolerances for concrete construction and materials and commentary. These tolerances require monitoring to construct the structure as designed. Concrete slab finishes and the use of fnumber system.
This report is a commentary on the specification for tolerances for concrete construction and materials aci 117. Tolerances for concrete construction and materials shall conform to all requirements of aci 117, standard specifications for tolerances for concrete construction and materials, published by the american concrete institute, detroit, michigan. Pdf standard specifications for tolerances for concrete. Adopted as a standard of the american concrete institute in november 1989. Aci functions as a technical and educational society for sharing innovative ideas and promoting superior concrete technology. The wall is also 34 out of true at each end of a 30 straight edge. Tolerances for concrete construction tolerances for concrete. In the lines and surfaces of columns, piers, walls and in arrises. 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 consensusbased standards, technical resources, educational programs, and proven expertise for individuals and organizations involved in concrete design. Architectural precast concrete products was prepared by the pci plant certification subcommittee for plant production of architectural precast concrete products. The indicated tolerances govern unless otherwise specified. Materials that interface with or connect to concrete elements may have tolerance requirements that are not compatible with those contained in this document. The institute publishes more than 400 technical standards, reports and manuals on testing, inspection, cracking and. Standard specifications for tolerances for concrete construction and materials aci 117 90, doesnt call out this tolerance very clearly.
Tolerance on topofwall elevation concrete construction. Subsequent to the publication and use of the first edition, a plant certification program was established for the precast and prestressed concrete industry. This specification provides standard tolerances for concrete. Aci 11710 specification for tolerances for concrete. This document is intended to be used by specification writers and aci committees writing standards as the reference document for establishing tolerances for concrete construction and materials. Download aci 117 1r 14 guide for tolerance compatibility in concrete construction or read aci 117 1r 14 guide for tolerance compatibility in concrete construction online books in pdf, epub and mobi format. Most aci standards and committee reports are gathered together in the annually revised aci manual of. Aci 117 10 requires that if an unleveled straightedge placed on the slab surface is used to measure surface tolerances to evaluate the concrete contractors workmanship, such measurements must take place within 72 hours after slab placement.
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