ASTM C204-2007 用空气渗透仪测定水硬水泥细度的标准试验方法

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                   【英文标准名称】:     Standard Test Methods for Fineness of Hydraulic Cement by Air-Permeability Apparatus            【原文标准名称】:     用空气渗透仪测定水硬水泥细度的标准试验方法            【标准号】:     ASTM C204-2007            【标准状态】:     现行            【国别】:                 【发布日期】:     2007    【实施或试行日期】: 【发布单位】: 美国材料与试验协会(US-ASTM)【起草单位】: C01.25【标准类型】: (Test Method)【标准水平】: ()【中文主题词】: 水泥;建筑;施工材料;细度;硅酸盐水泥;试验设备;测试【英文主题词】: air-permeability;  apparatus;  fineness【摘要】: 1.1 This test method covers determination of the fineness of hydraulic cement, using the Blaine air-permeability apparatus, in terms of the specific surface expressed as total surface area in square centimetres per gram, or square metres per kilogram, of cement. Two test methods are given: Test Method A is the Reference Test Method using the manually operated standard Blaine apparatus, while Test Method B permits the use of automated apparatus that has in accordance with the qualification requirements of this test method demonstrated acceptable performance. Although the test method may be, and has been, used for the determination of the measures of fineness of various other materials, it should be understood that, in general, relative rather than absolute fineness values are obtained. 1.1.1 This test method is known to work well for portland cements. However, the user should exercise judgement in determining its suitability with regard to fineness measurements of cements with densities, or porosities that differ from those assigned to Standard Reference Material No. 114.1.2 The values stated in SI units are to be regarded as the standard.This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.【中国标准分类号】: Q11【国际标准分类号】: 91_100_10【页数】: 9P.;A4【正文语种】:           
         

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