Microstructural Observations on the deterioration of Concrete Structure for Wastewater Treatment Facilities Subjected to Chemical Attack

화학적 침식을 받은 하수처리시설 콘크리트 구조물의 성능저하에 대한 미세구조적 관찰

Recently, there has been a intensive social interest for concrete structures with respect to durability by carbonation, chemical attack etc. Specially, the deterioration of concrete due to chemical attack in environments such as Wastewater Treatment Facilities is important factors degrading the durability of concrete structure. The purpose of this paper is to evaluate on deterioration of Wastewater Treatment Facilities concrete to chemical attack through instrumental analysis such as XRD, SEM and EDS. According to the results of this study. Wastewater Treatment Facilities concrete to chemical attack due to $So_{4}^{2-},\;Mg^{2+}$ ions founded out to appear deterioration materials peak : ettringite/thaumasite. gypsum and brucite peak.