ABSTRACT
The paper presents the results of detailed tests of the technical condition of the construction of a reinforced concrete post-tensioned drinking water tank that is embedded in the ground. The study included the determination of the actual mechanical and chemical parameters of the concrete and also verification of the reinforcement diameters, reinforcement spacing and post-tensioned tendons. The tests were performed on the internal and external surfaces of the tank. In order to carry out the tests on the external surfaces, a trench with a depth of approximately 6 m was executed. Structural and strength analysis was conducted with the use of the obtained results of the concrete and reinforcement tests. The results of the tests and structural-strength analysis were used to formulate general conclusions regarding the durability of the construction of post-tensioned concrete tanks that are used to store water that is intended for human consumption.
