摘要
采用无电极电阻率测定仪测定混凝土的电阻率,分析了混凝土电阻率与其水化过程的关系及矿物掺合料对混凝土电阻率的影响.试验结果表明,根据混凝土的电阻率发展特征,混凝土的水化过程可分为四个阶段:溶解期、凝结期、硬化前期和硬化的减速期;掺入矿物掺合料降低混凝土的电阻率变化速率,其影响程度与矿物掺合料的品种和掺量有关.
A non- contacting electrical resistivity measurement device was used for measuring the electrical resistivity of concrete with the mineral admixtures. The hydration process was divided into dissolving period, setting period, initial hardening period and hardening deceleration period. With the increase of the fly ash and slag, the rate of electrical resistivity of concrete will decrease. And the influence is related to the variety and amount of mineral admixtures.
出处
《福州大学学报（自然科学版）》
CAS
CSCD
北大核心
2008年第3期408-412,共5页
Journal of Fuzhou University(Natural Science Edition)
基金
福建省自然科学基金资助项目(E0610016)
福建省自然科学基金重大项目(2002F007)
福建省教育厅科研资助项目(JB04040)
关键词
混凝土
粉煤灰
矿渣
电阻率
水化
concrete
fly ash
slag
electrical resistivity
hydration
