Paper Title
Deterioration Of Concrete In Namrup BVFCL Plant; A Case Study

Abstract
The problem of deterioration of Reinforced concrete (RC) structures poses a serious concern to the strength and stability of systems. In the present paper, causes of deterioration of an RC wall with increasing age in an urea manufacturing P.S.U (Public Sector Unit) named Brahmaputra Valley Fertilizer Cooperation Limited (BVFCL) is studied. The work illustrated that due to the crystallization of urea trapped inside the RC walls, a continuous stress is developed on the walls and is responsible for the spalling of concrete from the RC walls. This long time deterioration of concrete might have an adverse effect in the service life of the structure. Keywords— Crystallization Pressure, Salt Crystallization, Urea, Urea dust, Urea prills;