Evaluation of stone column defects using an ultrasonic method

This Bachelor thesis deals with evaluation of structure defects in stone column using ultrasonic method. Content of this thesis is divided to theoretical and practical part. Aim of theoretical part is to explain process of evaluation of existing stone structures according to norm ČSN ISO 13822. This part also contains listings of method for stone testing and brief explanation of chosen types of rock used for stone structures. Practical part contains tests used on columns using ultrasonic method and laboratory tests of chosen samples. Evaluation of measuring using ultrasonic method is based on knowledge of this method and visual inspection of columns. In laboratory tests were compared results of chosen properties on examples of same type of rock. These examples had different shape, moisture and measurement