EN 14488-4:2005

Testing sprayed concrete - Part 4: Bond strength of cores by direct tension EN 14488-4:2005

Publication date:   Apr 21, 2006

Scope

This European Standard describes a means of determining the tensile bond between sprayed concrete and substrate of concrete or rock tested in a laboratory as a direct tension test. Bond strength is defined as the capacity to transfer tension between two layers. Bond strength is calculated as the ultimate tensile force divided by the stressed cross-sectional area of a core, drilled out of a sprayed concrete layer together with a portion of the substrate concrete or rock.

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