摘要
电阻率法和热量法是研究水泥水化过程2种常用的方法，但是由于温度条件的不同，这2种方法无法进行合理的比较。考虑温度对电阻率和水化速率的双重影响，基于等效时间原理探讨了温度对电阻率变化率的放大效应、温度变化效应和加速效应，建立了电阻率法和热量法的关系。理论分析与试验研究表明，电阻率法和热量法所确定的水化过程溶解期、加速期和减速期在时间上具有一致性。在温度的多种影响因素中，加速效应是引起电阻率变化率主峰出现的最主要原因。
Cement hydration process is commonly investigated via resistivity and thermodynamic measurements. However, the test results of the above methods cannot be compared reasonably due to their different temperature conditions. The influence of temperature on the resistivity and hydration rate was taken into consideration. Based on the equivalent time principle, the magnification, change and acceleration effects of temperature on the resistivity rate were discussed. A theoretical relationship between resistivity and thermodynamic measurements was proposed. The theoretical and experimental studies indicate that the dissolution period and the emergence time of peak during hydration process determined by the two methods have a high consistency. Among all the influencing effects, acceleration is the main effect inducing the major peak of resistivity variation rate.
作者
田卒士
田野
金南国
金贤玉
TIAN Zushi;TIAN Ye;JIN Nanguo;JIN Xianyu(College of Civil Engineering and Architecture, Zhejiang University, Hangzhou 310058, China)
出处
《硅酸盐学报》
EI
CAS
CSCD
北大核心
2018年第5期670-676,共7页
Journal of The Chinese Ceramic Society
基金
国家“973”计划(2015CB655103)
国家自然科学基金资助项目(51378012、51578497)
关键词
电阻率
水化放热
水化速率
水泥
温度
相关性
electrical resistivity
hydration heat
hydration rate
cement
temperature
relation
