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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Wall thickness of hollow sections. One-quarter specified distance not to exceed.
Entire shearing and bending tolerances are customarily absorbed in the extension past the last bend in a bent acci. All rights reserved, including the making of copies unless permission is obtained from the copyright proprietors.
Class B – Coarse-textured concrete-formed surfaces intended to receive plaster, stucco, or wainscoting. This specification provides standard tolerances for concrete construction. Precast planar element – Wall panel, floor panel, or similar unit. 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.
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All tolerances single plane and as shown. Floor elements without topping slab. This foreword is included for explanatory purposes only; it is not a part of Standard Specification Class C – General standard for permanently exposed surfaces where other finishes are not specified.
Class A – For surfaces prominently exposed to public view where appearance is of special importance. Over 20 ft but not over 40 ft. FL levelness tolerances shall not apply to cambered or inclined surfaces and shall be measured within 72 hr after slab concrete placement.
Other surfaces, deviation from a 10 ft.
Where range is specified there is no tolerance. Guideway elements to be used as riding surface. Outside corner of exposed corner columns and control joint grooves in concrete exposed to view.
When member size is over 2 ft. Clear distance – In reinforced concrete, the least distance between the surface of the reinforcement and the referenced surface, i. Specified slump more than 3 in.
If you need to be able to add standards to the monitoring service, you must register as a user with your own username and password. Use of Fly Ash in Concrete. The language is imperative and terse to preclude an alternative. Fling Chairman, Editorial Subcommittee B.
However, total number of bars shall not be less than that specified. When member size is over 12 in. Subscription – always available and updated A web subscription provides an easy and secure access to standards, and you are guaranteed to always have the latest edition. Difference in width between adjacent trends. Minus – tolerance decreases the amount or dimension to which it applies, or lowers a level alignment. For pipe with an internal diameter not greater than 42 in. Start Webshop Product catalog Product presentation.
Plus or minus acu. Reduction in cover shall not exceed one-third specified concrete cover. 1177-10 application of positive tolerance to Type 9 results in a chord length equal to or greater than the arc or bar length, the bar may be shipped straight.
ACI Tolerances for Concrete_百度文库
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.
Remember me for one month. This book also exists in the following packages Tolerance given is for general application. Specific use of a toleranced item may warrant less or more stringent tolerances than contained in the specification.
1171-0 Compu-tecture, Inc.
ACI 117-10 (R2015)
Class D – Minimum quality surface where roughness is not objectionable, usually applied where surfaces will be concealed. Specified slump 1171-0 than 4 in. This specification provides standard tolerances for concrete construction and materials. This ensures that you are always up-to-date and saves you both time and money. Concealed surface – Surface not subject to visual observation during normal use of the element.
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