ASTM C232-2007 混凝土泌水性的标准试验方法

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                   【英文标准名称】:     Standard Test Methods for Bleeding of Concrete            【原文标准名称】:     混凝土泌水性的标准试验方法            【标准号】:     ASTM C232-2007            【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】: C09.60【标准类型】: (Test Method)【标准水平】: ()【中文主题词】: 泌水;混凝土;建筑;施工材料;测试【英文主题词】: bleeding;  concrete, bleeding of【摘要】: This test method provides procedures to be used for determining the effect of variables of composition, treatment, environment, or other factors in the bleeding of concrete. It is also permitted to be used to determine the conformance of a product or treatment with a requirement relating to its effect on bleeding of concrete. Method A8212;For a sample consolidated by rodding only and tested without further disturbance, thus simulating conditions in which the concrete, after placement, is not subjected to intermittent vibration. Method B8212;For a sample consolidated by vibration and tested with further intermittent periods of vibration, thus simulating conditions in which concrete, after being placed, is subjected to intermittent vibration.1.1 These test methods cover the determination of the relative quantity of mixing water that will bleed from a sample of freshly mixed concrete. Two test methods, that differ primarily in the degree of vibration to which the concrete sample is subjected, are included.  1.2 The two test methods are not expected to yield the same test results when samples of concrete from the same batch are tested by each method. When various concretes are to be compared, all the tests must be conducted using the same method, and if the batches are of similar unit weight, the sample masses shall not differ by more than 1 kg (2 lb).1.3 The values stated in SI units are to be regarded as standard. The values in parentheses are provided for information purposes only.1.4 The text of this standard references notes and footnotes which provide explanatory material. These notes and footnotes (excluding those in tables and figures) shall not be considered as requirements of 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. (Warning-Fresh hydraulic cementitious mixtures are caustic and may cause chemical burns to skin and tissue upon prolonged exposure).【中国标准分类号】: Q13【国际标准分类号】: 91_100_30 (CONCRETE AND CONCRETE PRODUCTS)【页数】: 5P.;A4【正文语种】:           
         

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