1.1 本试验方法涵盖了使用手持球试验确定浇注料稠度的程序。浇注料中使用的水量对其性能有重大影响。 1.2 本试验方法适用于分类中描述的可浇铸耐火材料 C401型 . 它也适用于这种含有金属纤维的浇注料。 1.3 本试验方法不旨在确定喷补、泵送或自流应用的适当稠度。 1.4 以英寸-磅为单位的数值应视为标准值。括号中给出的值是到国际单位制的数学转换，仅供参考，不被视为标准值。 1.5 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、健康和环境实践，并确定监管限制的适用性。 （参见 6.2.3 以获取特定的安全警告。） 1.6 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====== 3.1 本试验方法用于确定新混合的耐火浇注料是否具有适当的稠度，以提供最佳性能。有时，制造商规定的含水量和稠度将故意导致手中的球不正确，但应用于提供最佳性能。 如有疑问，请联系制造商。当制造商规定的含水量不可用或特殊情况导致该建议无法使用时，该试验方法也可用于估计浇注料的正确加水率。 3.2 正确的含水量是获得最佳浇注料性能必须控制的一个重要因素。过量的水会降低强度，增加体积收缩，并促进浇注料成分的分离。由于浇筑过程中流动性不足，水不足可能会在浇注料中产生“蜂窝”（空隙），在极端情况下，可能会阻止水泥的完全水化（如果使用）。 3.3 手持球测试是主观的，在一定程度上取决于操作员的技能。 然而，由于所需设备的简单性，它是一种普遍可用的方法，并且易于在现场使用。 3.4 浇注料的总湿混合时间影响流变性和最终性能，因此应进行监测。 3.5 该试验方法可在实验室或工作现场进行。

1.1 This test method covers the procedures for determining the consistency of a castable using the ball-in-hand test. The amount of water used in a castable has a significant influence on its performance. 1.2 This test method applies to castable refractories that are described in Classification C401 . It also applies to such castables containing metal fibers. 1.3 This test method is not intended to determine the proper consistency for gunning, pumping, or self-flow applications. 1.4 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard. 1.5 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. (See 6.2.3 for a specific safety warning.) 1.6 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 ====== 3.1 This test method is used to determine if a freshly mixed refractory castable is of the proper consistency to provide optimum performance. There are times when the manufacturer’s specified water content and consistency will purposely not lead to the correct ball in hand but should be used to provide optimum performance. Contact the manufacturer when in doubt. This test method can also be used to estimate the correct water addition rate of a castable when either the manufacturer's specified water content is not available or when unique circumstances have rendered that recommendation unusable. 3.2 The correct water content is an important factor that must be controlled to obtain optimum castable performance. Excess water can reduce strength, increase volume shrinkage, and promote segregation of the castable ingredients. Insufficient water can produce “honeycombs” (air voids) in the castable because of the insufficient mobility during placement and, in extreme cases, can prevent the complete hydration of the cement (if used). 3.3 The ball-in-hand test is subjective and somewhat depends on the skill of the operator. However, it is a universally accessible method due to the simplicity of the equipment required, and it is readily used in the field. 3.4 The total wet mixing time of a castable influences the rheological and final properties and therefore should be monitored. 3.5 This test method can be performed in a laboratory or on a job site.