JCI Annual Convention in Matsuyama
Jun 26 - Jun 28, 2024Ehime World Trade Center
JCI Annual Convention in Matsuyama
Jun 26 - Jun 28, 2024Ehime World Trade Center
[1040]Ｍicrostructural evolution of hardened limestone calcined clay cement paste during first drying
Zhenli Yang1, Luge CHENG1, Ryo Kurihara1, Ippei Maruyama1(1.東京大学)
The pore structures of Ordinary Portland Cement (OPC) and Limestone Calcined Clay Cement (LC3 ) were compared using 1H Nuclear Magnetic Resonance. The chemical insight into C-(A)-S-H structure have been provided by Fourier transform infared spectrometry. The results indicate that LC3 has a larger interlayer and gel pore width than OPC. A significant change in pore structure occurs when the relative humidity (RH) drops to about 33% for both OPC and LC3 . RH exerts different effects on OPC and LC3 , which can be attributed to a more loose stacking of C-(A)-S-H layers in LC3 after aluminum intake.