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sklademVydáno: 2009-05-31
BS EN 14488-4:2005+A1:2008
Testing sprayed concrete Bond strength of cores by direct tension
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| Označení normy: | BS EN 14488-4:2005+A1:2008 |
| Počet stran: | 10 |
| Vydáno: | 2009-05-31 |
| ISBN: | 978 0 580 59278 2 |
| Status: | Standard |
DESCRIPTION
BS EN 14488-4:2005+A1:2008
This standard BS EN 14488-4:2005+A1:2008 Testing sprayed concrete is classified in these ICS categories:
- 91.100.30 Concrete and concrete products
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."