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Standard Test Method for Flowability and Bearing Area of Chemical-Resistant Polymer Machinery Grouts 耐化学腐蚀聚合物机械灌浆的流动性和承载面积的标准试验方法
发布日期: 2024-07-01
1.1 本试验方法涵盖了在实验室环境中以50毫米[2英寸]或25毫米[1英寸]的浇注厚度评估的耐化学性聚合物机械灌浆的流动性测量。该试验方法规定了上表面板接触面积(轴承面积)的评估。这些灌浆通常至少是两种成分配方,可用于灌浆底座或板下方灌浆厚度在25毫米至150毫米[1英寸至6英寸]范围内的安装。 1.2 本标准的文本是指提供解释性材料的注释和脚注。这些注释和脚注(不包括表格和图表中的注释和脚注)不应被视为本标准的要求。 1.3 以国际单位制或英寸-磅单位表示的值应单独视为标准值。每个系统中所述的值不一定是完全等效的; 因此,为确保符合标准,每个系统应独立使用,两个系统的值不得组合。 1.4 本标准并不旨在解决与其使用相关的所有安全问题(如果有的话)。本标准的使用者有责任在使用前建立适当的安全、健康和环境实践,并确定监管限制的适用性。 1.5 本国际标准是根据世界贸易组织技术性贸易壁垒委员会发布的《关于制定国际标准、指南和建议的原则的决定》中确立的国际公认的标准化原则制定的。 =====意义和用途====== 5.1 耐化学性聚合物机械灌浆用于为机械或设备提供精确支撑。 注2: 机械或设备或支撑底座或板,或其组合,被定位到所需的精确高度和位置。底座或板通常放置在准备好的基础上,并由临时垫片或支撑螺栓(千斤顶螺钉)支撑。安装模板以容纳可流动的水泥浆。水泥浆以允许水泥浆在设备底座或板周围和下方流动的方式浇筑在周围。随后,水泥浆变硬,形成一个坚固的刚性支撑层,能够承受设备传递到基础的应力。尽管实际的机械底板通常是金属的,本次测试中的盖板使用丙烯酸玻璃,但使用丙烯酸玻璃盖板的不同灌浆已被证明可用于实验室条件下本次测试所述的比较目的。 5.2 除了灌浆所需的物理特性外,达到的流量和承载面积也是有效灌浆安装的重要考虑因素。通过这种测试方法测量的两个特征是流量和轴承面积。 5.3 流动试验模拟了实验室环境中可流动聚合物机械灌浆的典型应用条件。它可用于评估特定灌浆对特定应用的适用性,比较两种或多种灌浆的流动性和承载面积,或评估配方变化、温度、混合技术或其他因素对流动性的影响。 5.4 上部灌浆表面接触的估计量(以百分比表示)可用于比较两种或多种灌浆,或显示温度、配方变化或其他因素对承载面积的影响。 使用视觉指南的有限结果集(请参见 图1 和 图2 )用于将轴承分为“高”(大于85%)、“中”(70至85%)和“低”(小于70%)
1.1 This test method covers the measure of flowability of chemical-resistant polymer machinery grouts as evaluated in a 50-mm [2-in.] or 25-mm [1-in.] pour thickness in a laboratory setting. The test method provides for the assessment of upper surface plate contact area (bearing area). These grouts will typically be at least two component formulations that may be used for installations where grout thickness will range from 25 mm to 150 mm [1 in. to 6 in.] underneath the base or plates being grouted. 1.2 The text of this standard refers to notes and footnotes that provide explanatory material. These notes and footnotes (excluding those in tables and figures) shall not be considered as requirements of this standard. 1.3 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system are not necessarily exact equivalents; therefore, to ensure conformance with the standard, each system shall be used independently of the other, and values from the two systems shall not be combined. 1.4 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use. 1.5 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 ====== 5.1 Chemical-resistant polymer machinery grouts are used to provide precision support for machinery or equipment. Note 2: The machinery or equipment or support bases or plates, or combination thereof, are positioned to the precise elevation and location required. The bases or plates are typically placed on prepared foundations and supported on temporary shims or support bolts (jack screws). Forms are installed to contain the flowable grout. The grout is poured around the perimeter in such a manner as to allow the grout to flow around and under the equipment base or plates. The grout subsequently hardens to provide a strong rigid support layer capable of withstanding the stresses transferred by the equipment to the foundation. Although the actual machinery base plate is typically metal and the cover plate in this test uses acrylic glass, different grouts using acrylic glass cover plates has proven useful for comparative purposes as described in this test in laboratory conditions. 5.2 In addition to the required physical properties of the grout, the flow and bearing area achieved are important considerations for effective grout installation. The two characteristics measured by this test method are flow and bearing area. 5.3 The flow test simulates typical application conditions for a flowable polymer machinery grout in a laboratory environment. It may be used to evaluate the suitability of a particular grout for a specific application, to compare the flowability and bearing area of two or more grouts, or to evaluate the effects of formulation changes, temperature, mixing techniques, or other factors on flowability. 5.4 The estimated amount of upper grout surface contact in percent can be used to compare two or more grouts or show the effects of temperature, formulation changes, or other factors on bearing area. A limited set of results using visual guides (see Fig. 1 and Fig. 2 ) is used to classify the bearing as “high”—greater than 85 %,” “medium—70 to 85  %,” and “low—less than 70 %.”
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归口单位: C09.41
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