DIN EN 14488-4-2008 喷射混凝土试验.第4部分:使用直接压力测定岩芯的粘结强度

标准号：DIN EN 14488-4-2008
中文标准名称：喷射混凝土试验.第4部分:使用直接压力测定岩芯的粘结强度
英文标准名称：Testing sprayed concrete - Part 4: Bond strength of cores by direct tension; German version EN 14488-4:2005+A1:2008
标准类型：Q13
发布日期：1999/12/31 12:00:00
实施日期：1999/12/31 12:00:00
中国标准分类号：Q13
国际标准分类号：91.100.30
引用标准：EN 10002-1;EN 12309-1;EN 12504-1
适用范围：This European Standard describes a means of determining the tensile bond between sprayed concrete andsubstrate of concrete or rock tested in a laboratory as a direct tension test. Bond strength is defined as thecapacity to transfer tension between two layers. Bond strength is calculated as the ultimate tensile forcedivided by the stressed cross-sectional area of a core, drilled out of a sprayed concrete layer together with aportion of the substrate concrete or rock.Alternative in situ test methods for determining bond strength are allowed provided they meet all therequirements of this European Standard. In case of dispute, the method described in this European Standardis the reference test method.