基于等温传导量热法的铁铝酸盐水泥体系水化特性与其宏观性能间的相关性研究  

Study on correlation between hydration characteristics and macroscopic properties of ferroaluminate cement system based on isothermal conduction calorimetry

作　　者：周莉娟 秦伶俐 郭俊萍 曾平 王志宇 ZHOU Lijuan

机构地区：[1]北京财贸职业学院,北京101101 [2]中国建筑材料科学研究总院有限公司,北京100024

出　　处：《水泥》2025年第4期1-4,18,共5页Cement

摘　　要：采用等温传导量热法测定了铁铝酸盐水泥体系的水化放热速率和水化放热量,研究了其水化放热特性与其宏观性能间的相关性。结果表明,单掺石灰石的铁铝酸盐水泥体系中,随着石灰石掺量增大,所制水泥的初、终凝时间延长,不同龄期的抗压强度和7 d累积放热量均呈下降趋势;复掺石灰石和矿渣的铁铝酸盐水泥体系中,随着矿渣掺量增大,相应所制水泥的凝结时间呈先延长后缩短再延长的趋势,而强度和7 d累积放热量均呈先降后升再降趋势。铁铝酸盐水泥体系的抗压强度与其相应龄期的累积水化放热量呈线性正相关性,其凝结时间与7 d累积水化放热量间呈线性负相关性。The hydration heat release and hydration characteristics of a ferroaluminate cement system were investigated using isothermal conduction calorimetry,with a focus on the correlation between its hydration behavior and macroscopic properties.The results indicate that in a ferroaluminate cement system blended solely with limestone,increasing the limestone content prolonged the initial and final setting times,while the compressive strength at various curing ages and the 7-day cumulative heat release exhibited a declining trend.In a system incorporating both limestone and slag,increasing the slag content caused the setting time to first extend,then shorten,and subsequently extend again.Meanwhile,the compressive strength and 7-day cumulative heat release initially decreased,followed by an increase,and ultimately decreased.A linear positive correlation was observed between the compressive strength of the ferroaluminate cement system and its cumulative hydration heat release at corresponding curing ages.Conversely,a linear negative correlation existed between the setting time and the 7-day cumulative hydration heat release.

关 键 词：等温传导量热法 铁铝酸盐水泥 水化特性 宏观性能 相关性 

分 类 号：TQ172.7[化学工程—水泥工业]