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.
Alternative in situ test methods for determining bond strength are allowed provided they meet all the
requirements of this European Standard. In case of dispute, the method described in this European Standard
is the reference test method.
BS EN 14488-4:2005+A1:2008 Referenced Document
EN 10002-1 Metallic Materials - Tensile Testing - Part 1: Method of Test at Ambient Temperature
EN 12390-1 Testing hardened concrete - Part 1: Shape, dimensions and other requirements for specimens and moulds*， 2021-06-30 Update
EN 12504-1 Testing concrete in structures - Part 1: Cored specimens - Taking, examining and testing in compression*， 2020-10-31 Update
BS EN 14488-4:2005+A1:2008 history
0000 BS EN 14488-4:2005+A1:2008(2009)
2005BS EN 14488-4:2005+A1:2008 Testing sprayed concrete - Part 4: Bond strength of cores by direct tension
2005BS EN 14488-4:2005 Testing sprayed concrete - Bond strength of cores by direct tension