Study on estimation technique of hydration on concrete in the mold by electrical resistance value

Maho Ota, Takeshi Iyoda

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Strength and durability of concrete is important for using long-term structure. In order to obtain enough strength and durability, it is necessary to progress hydration on concrete during the early age. Therefore, it is important to monitor the hydration in the mold. However it is difficult to check the state of concrete in the mold. Then, we focused on the electrical resistance as a method to check hardening concrete for in the non-destructive test. It has been reported that the electric resistance of the hardening concrete has a correlation with compressive strength at remolding time and carbonation ratio. However, it is not measured in the fresh concrete. So, we measured the electrical resistance of fresh concrete in the mold. As a result, the behavior of the electric resistance is very similar to the results of heat of cement hydration measured by the conduction calorimeter. Moreover, the behavior of the electric resistance was correlated with the setting time. Thus, it can be monitored the hydration on concrete from fresh to harden in the mold by using the electrical resistance.

Original languageEnglish
Title of host publicationLife-Cycle of Engineering Systems: Emphasis on Sustainable Civil Infrastructure - 5th International Symposium on Life-Cycle Engineering, IALCCE 2016
PublisherCRC Press/Balkema
Pages1342-1352
Number of pages11
ISBN (Print)9781138028470
Publication statusPublished - 2017
Event5th International Symposium on Life-Cycle Engineering, IALCCE 2016 - Delft, Netherlands
Duration: 2016 Oct 162016 Oct 20

Other

Other5th International Symposium on Life-Cycle Engineering, IALCCE 2016
CountryNetherlands
CityDelft
Period16/10/1616/10/20

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ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Safety, Risk, Reliability and Quality

Cite this

Ota, M., & Iyoda, T. (2017). Study on estimation technique of hydration on concrete in the mold by electrical resistance value. In Life-Cycle of Engineering Systems: Emphasis on Sustainable Civil Infrastructure - 5th International Symposium on Life-Cycle Engineering, IALCCE 2016 (pp. 1342-1352). CRC Press/Balkema.