Estimation of Early Aged Compressive Strength of Concrete by Electric Conductivity
Concrete in a formwork must be demolded after reaching the required strength.However, it is difficult to estimate compressive strength of concrete in the formwork.Because the strength of concrete depends on ambient temperature, type of cement etc.If it is possible to estimate the strength of the concrete in real time, demolding time can be estimated.Then the period of the concrete in the formwork will be shorted.we focused on the electrical conductivity of concrete in this research.It has been reported that compressive strength and electrical conductivity are related.However, early aged compressive strength has not been estimated.So in this research concrete with different early aged compressive strength is made by different cement and ambient temperature.Then, the relationship between the electrical conductivity and early aged compressive strength of concrete was investigated.As a result, The electrical conductivity of concrete was related on compressive strength.Therefore, it is possible to estimate the early aged compressive strength of concrete by using electric conductivity.
Compressive strength Electric conductivity Hydration reaction Hydration heating rate Temperature
H.Mizuno T.Shibuya T.Iyoda
School of Eng,Shibaura Institute of Technology,Tokyo,Japan Niigata Prefecture, Niigata, Japan Shibaura Institute of Technology, Tokyo, Japan
国际会议
福州
英文
369-373
2018-11-04（万方平台首次上网日期，不代表论文的发表时间）