1.1 本指南适用于具有反应性粘结剂系统的所有浇注料，该系统在凝固和硬化过程中产生可测量的热分布。这些系统中的大多数将铝酸钙水泥作为粘合剂系统的一个组成部分。 1.2 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。 1.3 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 铝酸钙基浇注料的水化热在短时间内释放（与硅酸盐水泥相比）。这使得使用现成的热电偶设备很容易测量热分布。 4.2 热分布可用于推断浇注料的凝固和强度增益行为，有时还可推断浇注料的工作时间。 4.3 比较两种浇注料时应控制的因素包括:铸件的尺寸、形状和质量、混合物的起始温度、环境温度和环境的导热系数。如果这些因素保持不变，则可以比较两种浇注料的热量分布。 4.4 浇注料放热反应产生的温升应至少为2。 0 °C高于实验室温度的正常波动，因此用户可以很容易地识别出这种升高的时间。 4.5 改变浇注料中的水泥量、水量、外加剂的类型和数量等，将改变曲线的形状、最高温度和达到最高温度的时间。 4.6 以下是为LCC生成的曲线示例（请参见 图1 )这确实表现出两个峰值，第一个峰值标志着工作时间的结束。在该曲线中，还可以推断混合物的起始温度为24 °C，并且水力强度增加反应显著开始，但在6小时内未完成。 图1 LCC Exo配置文件示例

1.1 This guide applies to all castables with a reactive binder system that produces a measurable heat profile during the setting and hardening process. The majority of these systems will have calcium aluminate cement as one component of the binder system. 1.2 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. 1.3 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 The heat of hydration of a calcium aluminate-based castable is liberated over a short period of time (as compared to portland cement). This makes it easy to measure the heat profile using off-the-shelf thermocouple equipment. 4.2 The heat profile can be used to make inferences about the setting and strength gain behavior of a castable and sometimes the working time of a castable. 4.3 Factors that should be controlled when comparing two castables include: size, shape, and mass of cast object, start temperature of the mix, temperature of environment, and the thermal conductivity of the environment. If these factors are held constant, then the two castables’ heat profiles can be compared. 4.4 The temperature increase created by the castable exothermic reaction shall be at least 2.0 °C more than the normal fluctuation of the laboratory temperature so that the time of this increase is easily discernible to the user. 4.5 Varying the amount of cement in the castable, the amount of water, the type and quantity of admixtures, and so forth, will change the shape, maximum temperature, and time to maximum temperature of the curve. 4.6 Following is an example of a curve generated for an LCC (see Fig. 1 ) that does exhibit two peaks, the first one marking the end of working time. In this curve, one could also infer that the start temperature of the mix was 24 °C and also that the hydraulic strength gain reaction was significantly started, but not completed by 6 h. FIG. 1 Example of LCC Exo Profile