標(biāo)準(zhǔn)號(hào)：BS EN 480-11-2005
中文標(biāo)準(zhǔn)名稱：混凝土、灰漿和灌漿用混合料.試驗(yàn)方法.硬化混凝土中氣隙特性的測定
英文標(biāo)準(zhǔn)名稱：Admixtures for concrete, mortar and grout - Test methods - Part 11: Determination of air void characteristics in hardened concrete
標(biāo)準(zhǔn)類型：Q13
發(fā)布日期：2005/12/14 12:00:00
實(shí)施日期：2005/12/14 12:00:00
中國標(biāo)準(zhǔn)分類號(hào)：Q13
國際標(biāo)準(zhǔn)分類號(hào)：91.100.30
引用標(biāo)準(zhǔn)：EN 480-1;EN 934-2;ISO 1920-3
適用范圍：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.