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Standard Test Method for Bleed Stability of Cementitious Post-Tensioning Tendon Grout 水泥后张紧肌腱灌浆出血稳定性标准试验方法
发布日期: 2018-10-01
1.1 本试验方法旨在确定新混合水泥基灌浆在静压下的渗透稳定性。 1.2 单位- 以国际单位制表示的数值应视为标准值。本标准不包括其他计量单位。 1.3 本标准并非旨在解决与其使用相关的所有安全问题(如有)。本标准的用户有责任在使用前制定适当的安全和健康实践,并确定监管限制的适用性。 ( 警告- 新鲜的水硬性胶结混合物具有腐蚀性,长时间接触可能会导致皮肤和组织化学烧伤。 2. ) 1.4 本国际标准是根据世界贸易组织技术性贸易壁垒(TBT)委员会发布的《关于制定国际标准、指南和建议的原则的决定》中确立的国际公认标准化原则制定的。 ====意义和用途====== 4.1 本试验方法旨在评估新混合灌浆在静压下的泌水稳定性。它既可用于实验室鉴定灌浆材料,也可用于现场质量控制测试。当用于鉴定灌浆材料时,可规定重复试验。如果参考了本试验方法,则合同文件中应规定试验压力、验收标准和重复试验的次数。这些值通常会根据后张钢筋束的垂直高度而变化。 注1: 附录X1 包括测试压力和放气极限示例的参考。 4.2 该测试程序由Schokker等人开发。 4. 基于Schupack之前的工作。 5.
1.1 This test method is designed to determine the bleed stability of freshly-mixed cementitious grout under static pressure. 1.2 Units— The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard. 1.3 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. 2 ) 1.4 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee. ====== Significance And Use ====== 4.1 This test method is designed to evaluate the bleed stability of a freshly-mixed grout under static pressure. It can be used in both the laboratory to qualify grout materials and in the field as a quality control test. When used to qualify grout materials, replicate tests may be specified. It is intended that the test pressure, acceptance criteria, and number of replicate tests be set forth in the contract documents if this test method is referenced. These values will normally vary depending on the vertical rise of the post-tensioning tendon. Note 1: Appendix X1 includes a reference for an example of test pressures and bleeding limits. 4.2 The procedure for this test was developed by Schokker et al. 4 based on previous work by Schupack. 5
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归口单位: C09.41
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