Studie porovnává účinnost a chování hmoždíků v příčných spárách betonových vozovek. Pomocí laboratorních testů v ČR a SR hodnotí jejich rozměry, materiály, podélný posuv a odolnost vůči poškození. Výsledky ukazují deformační změny betonu a vhodnost alternativních materiálů.
Abstract:
This paper describes the testing of effectiveness and behavior of dowels placed in transversal joints of concrete pavements, while focusing on dimensions and quality of commonly used materials. The analysis uses experimental tests in laboratory conditions which were performed independently in the Czech Republic and Slovak Republic. The comparison of quality as well as potential use of alternative materials of dowels is made with the use of developed tests focusing on main requirements, such as longitudinal displacement in cement concrete, resistance of coating to damage, and reduced potential to concrete damage. Furthermore, the paper describes and compares loading results of the relative concrete deformations around dowels by strain gauges that were analyzed. Results of deformations on beams with an inserted dowel and the findings that were observed during the measurement are presented.
https://www.mdpi.com/1996-1944/13/10/2343