Pore structure of middle scale column specimens exposed outdoors

Abstract

This study aimed to investigate the pore structure of middle scale column specimens exposed outdoors. The results revealed that pore structure of the part where the influence of rain is small was coarse compared with the part where the influence of the rain is large. As the results of analyzing the pore structure at the age of 28 days and 7 years and 8 months, it was confirmed that the pore structure was coarsened as much as the surface part regardless of the curing method and the difference of water cement ratio about 5%.