烧结时间和温度对烧结粘土砖物理性能的影响

Eshetu Tsega¹, Alemu Mosisa², Fekadu Fufa²
1、安博大学工程学院施工技术与管理系
2、吉马大学吉马理工学院土木与环境工程学院

摘要

砖是世界上使用最广泛的传统建筑材料之一。粘土砖的生产成本受到烧制所需能源成本的显著影响。本研究的
目的是研究不同烧成温度对吉马镇周围生产的烧结粘土砖的抗压强度（CS）、吸水率（WA）和饱和系数（SC）的影响，
并评估制砖过程中的烧成工艺对粘土砖性能、颜色和外观的影响。在生产过程中，分析了不同加热速率对烧结标准砖
物理力学性能的影响。在本研究中，使用了不同的加热速率：慢加热速率和快加热速率。评估了烧结粘土砖的物理和
力学性能随烧结温度和烧结时间的增加而发生的变化。结果表明，CS 随焙烧温度的升高而增加。相反，烧结粘土砖的
WA 和 SC 随着烧结温度的升高而降低。烧制持续时间的增加会略微增加 CS，降低粘土砖的 WA。在研究区域，传统的
砖生产商在烧结粘土砖生产中没有烧结温度控制装置或机制。窑操作员决定了焙烧温度和持续时间。该装置的缺失经
常导致砖的过度或欠烧，这大大影响了这种广泛使用的收缩材料的工程性能。因此，传统粘土砖生产商应在其窑上安
装温度控制装置，或者至少需要接受如何近似确定最佳温度的培训。

关键词

烧结粘土砖；CS；烧成温度；饱和系数；吸水率

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