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ACI 117M

2010 Edition, July 2010

Complete Document

Specification for Tolerances for Concrete Construction and Materials (ACI 117M-10) and Commentary (ACI 117RM-10)

Includes all amendments and changes through Reapproval Notice , 2015

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Product Details:

  • Revision: 2010 Edition, July 2010
  • Published Date: January 2015
  • Status: Active, Most Current
  • Document Language: English
  • Published By: American Concrete Institute (ACI)
  • Page Count: 80
  • ANSI Approved: No
  • DoD Adopted: No

Description / Abstract:

This specification designates standard tolerances for concrete construction. 

The indicated tolerances govern unless otherwise specified.

Tolerances in this specification are for typical concrete construction and construction procedures and are applicable to exposed concrete and to architectural concrete. Materials that interface with or connect to concrete elements may have tolerance requirements that are not compatible with those contained in this document.

This specification does not apply to specialized structures, such as nuclear reactors and containment vessels, bins, prestressed circular structures, and single-family residential construction. It also does not apply to precast concrete or to shotcrete.

Tolerances for specialized concrete construction that is outside the scope of this specification shall be specified in Contract Documents. 

A series of preconstruction tolerance coordination meetings shall be scheduled and held prior to the commencement of the Work. The Contractor, subcontractors, material suppliers, and other key parties shall attend. All parties shall be given the opportunity to identify any tolerance questions and conflicts that are applicable to the work with materials, prefabricated elements, and Work assembled/installed in the field by the Contractor.