BS EN 480-11-2005 混凝土、灰浆和灌浆用混合料.试验方法.硬化混凝土中气隙特性的测定

标准号：BS EN 480-11-2005
中文标准名称：混凝土、灰浆和灌浆用混合料.试验方法.硬化混凝土中气隙特性的测定
英文标准名称：Admixtures for concrete, mortar and grout - Test methods - Part 11: Determination of air void characteristics in hardened concrete
标准类型：Q13
发布日期：2005/12/14 12:00:00
实施日期：2005/12/14 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 480-1;EN 934-2;ISO 1920-3
适用范围：This document describes a test method for determination of the air-void structure in a hardened concrete samplewhich contains entrained air. The air-void structure is described by means of the following parameters, which aredefined in Clause 3.i) Total air contentii) Specific surface of air void systemiii) Spacing factoriv) Air-void size distributionv) Micro air contentThe method as described is only suitable for use on hardened concrete specimens where the original mixproportions of the concrete are accurately known and the specimen is representative of these mix proportions.This will generally be the case only where the concrete concerned is produced in a laboratory.