Examination of plates produced using different ratios of surface hardener under dynamic loads

Constructional elements are being affected by more than one loads. These loads can be grouped as dead, live and horizontal. Today, various methods have been developed to determine the durability of constructional elements against these loads. Among them, especially impact effect analysis and three-point bending test are the most preferred ones. Therefore, in this thesis, these methods were used as tools to evaluate slabs produced with different surface hardness. First, 12 concrete slabs of 450×450×60 mm in size were obtained by using different amounts of surface hardness. Then, them (9) were examined with the impact effect analysis test. In all experiments, the hammer mass was determined as 14 kg and the free fall height were 500 mm, 400 mm and 300 mm, respectively. The responses of the slabs to impact effect were measured with measuring devices such accelerometers, displacement sensors, force sensors and data collectors. Acceleration-time, velocity-time and displacement-time graphs of the experimental elements were created by using these recorded values. Finally, the values obtained from all the experimental studies carried out in this thesis were examined. According to the results, some suggestions were made.