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Title: Concrete Q&A: Rebound Hammer and In-Place Strength Testing; Tolerances for Concrete Slabs Supporting Steel Tanks

Author(s):

Publication: Concrete International

Volume: 39

Issue: 12

Appears on pages(s): 88

Keywords:

DOI:

Date: 12/1/2017

Abstract:
Q. According to Provision 1.6.4.2 of ACI 301-16,1 a rebound hammer cannot be used for in-place strength testing. Does ACI recommend any other nondestructive testing (NDT) method for in-place strength evaluation? Q. My company will be placing a concrete slab foundation designed to directly support the base of a steel tank. Does ACI have any documents that discuss tolerances for elevation of such slabs after placement?