earticle

영어

The concrete which is the porous material is exposed to variety outside environments so the moisture from environments permeates into the concrete. As time passes, volume of absorbed water and moisture distribution are changed in internal concrete. These moisture diffusion has caused various problems such as penetration of acid rain, neutralization and freezing and thawing in the aspect of durability of concrete structures. The moisture in concrete involved in movement of deterioration substances and the reaction. The concrete depends on the internal pore distribution, size, and shape by mixing conditions, So behavior of moisture diffusion in the liquid phase is different. The some study on moisture diffusion of concrete has been studied, however The study on quantitative evaluation of moisture diffusion coefficient according to variety mixing conditions has left much to be desired. The purposes of this study is consideration through experiments about relationships between properties of concrete according to a variety of mixing conditions and moisture diffusion coefficient. As a result, moisture diffusion properties of concrete were greatly influenced by mixing factor deciding volume of voids of internal hydration organization.