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This article deals with the description and evaluation of experimental work carried out by the Department of Transport Structures of Jan Perner Transport Faculty, University of Pardubice in the laboratory facilities of the Training and Research Centre in Transport.This is design of high-strength concrete according to three recipes using two different approaches in the design of concrete.The article also describes results of test bodies made of fresh and hardened concrete.

This report deals with long term monitoring of durability properties of concrete using different weight doses of various kinds of additions. Particularly limestone, silica fume as a 50% suspension and blast furnace slag were used. Even though the basic recipe is based on the designed concrete, all the fresh concrete was made with a free-fall concrete mixer in the laboratory. This report deals with long-term monitoring of cement concrete surface resistance to water and defrosting chemicals (achieved 475 cycles). The article also describes results of following tests: determination of concrete frost resistance, depth of water penetration under pressure and depth of chloride penetration. Standard tests of fresh and hardened concrete specimens complement the experiment.