ACI Specification for Tolerances for Concrete Construction and Materials ( ACI ) and Commentary (ACI R). Specification for Tolerances for Concrete Construction and Materials (ACI ) and Commentary. ACI contains a tolerance for the elevation of the top surface of formed suspended slabs, before removal of supporting shores (±3/4 inch, Section ).
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AC1 committee documents covering specialized construction may provide guidance on specialized tolerances. Tolerance given is for general application.
Specific design use of embedded items nay require the specifier to designate tolerances of reduced magnitude for various embedded items. Consult specific equipment manufacturers for their recommendations. This specification provides standard tolerances for concrete construction and materials.
Specified wall thickness greater than 10 in. Start Webshop Product catalog Product presentation. The permitted variation from a given dimension or quantity. Enter your personal account email address to request a password reset: Outside corner of exposed corner columns and control joint grooves in concrete exposed to view. Individual sections, articles, or paragraphs should not be copied into the Project Specifications since taking them out of context may 1177-10 their meaning.
Clear distance – In reinforced concrete, the least distance between the surface of the reinforcement and the referenced surface, i.
Flashing reglets at panel edge. Specify floor finish tolerance measurement method either Section 4.
ACI 117-10 (R2015)
For more information about such agreements, or product availability as hardcopy, please contact us by phone 67 83 87 00 or email salg standard. FL levelness tolerances shall not apply to cambered or inclined surfaces and shall be measured within 72 hr after slab concrete placement. Electrical outlets and pipe sleeves. The tolerances in this Specification do not apply to special structures or procedures not cited in the document such as nuclear reactors and containment vessels, bins and silos, circular prestressed concrete tank structures and shotcrete.
Standard Specification addresses each of the Three-Part Section Format of the Construction Specifications Institute, organized by structural elements, structural components and types of structures; the numbering system reflects this organization.
Vertical alignment – The location relative to specified vertical plane or a specified vertical line or from a line or plane reference to a vertical line or plane. No items in cart. Please login to your authorized staff account to use this feature.
For bundled bars, the distance between bundles shall not be less than the greater of 1 in. Where a specific application uses multiply toleranced items that together yield a toleranced result, the 1171-0 must analyze the tolerance envelope with respect to practical limits and design assumptions and specify its value where the standard tolerances values in this specification are inadequate or inappropriate.
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There were no books found for the applied search filters. Tolerances in this specification are for standard concrete construction and construction procedures. The range of variation permitted in maintaining a specified dimension. Over 10 ft but not over 20 ft. Robert Little Chairman S. For elements to be used as concrete guideways support and steering surfaces. Concealed surface – Surface not subject to visual observation during normal use of aco element.
The gap at any point between the straightedge and the floor and between the highspots shall not exceed: For bars 14 and 18 in size, see Fig.
Fling Chairman, Editorial Subcommittee B. Entire shearing and bending tolerances are customarily absorbed in the extension past the last bend in a bent bar. Some of the requirements in this Standard Specification may be more stringent than the minimum in order to insure the level of quality and performance that the Owner expects the structure to provide. Floor elements without topping slab.
Register for a trial account. This document is intended to be used by specification writers aic ACI committees writing standards as the reference document for establishing tolerances for concrete construction and materials.
ACI Tolerances for Concrete_百度文库
Arris – The line, edge, or hip in which two straight or curved surfaces of a body, forming axi exterior angle, meet; a sharp ridge, as between adjoining channels of a Doric column. When member size is over 2 ft. Specifier must designate plus tolerance if desired.
These mandatory requirements should designate the specific qualities, procedures, materials, and performance criteria for which alternatives are permitted or for which provisions were not made in the Standard Specification. Such variances must be individually designated by the specifier in the contract documents.
Over 3 ft dimension. Designate class of surface A, B, C, D: Minus – tolerance decreases the amount or dimension to which it applies, or lowers a level alignment. Where feasible, a greater tolerance magnitude should be utilized where the span-to-depth ratio is equal to or greater than When applied to roadways, bridge decks, slabs, ramps, or other nominally horizontal surfaces established by elevations, level alignment is defined as the vertical location of the surface relative to the specified profile grade and specified cross slope.
Project Specifications – The building specifications which employ ACI by reference, and which serve as the instrument for making the mandatory and optional selections available under these and for specifying items not covered herein.
Member depth or thickness over 24 in. Where possible excess cover or other protection of the reinforcing steel should be specified in lieu of reduced tolerance because of the accuracy of locating reinforcing steel utilizing standard fabrication accessories and installed procedures.