Introduction. Construction of Roller Compacted Concrete or Rolling Compacted Concrete (RCC) road pavements is well-spread in many countries all over the world. (Its name comes from the heavy steel drum rollers, which compact the concrete into final form).
Problem statement. It has several advantages but its technique is different from that of „traditional” cement concrete pavement.
Purpose. The article presents the specialities of RCC techniques and the international application experiences emphasizing the Hungarian ones in order to support the introduction of the technology in other countries.
Materials and methods. The RCC consists of the same ingredients as conventional concrete does, but it has a higher percentage of fine aggregates and is stiff enough to remain stable under compaction having sufficient water for distributing the paste without segregation. RCC pavements can be constructed without forms, dowels or reinforcing steel. The article will supply with an introduction to and updated review of RCC and its many paving applications. Previous relevant research works and the results of laboratory test series will be summarized which were done partly in Hungary and partly in other countries. The importance of the following of strict technological rules in producing high-quality material is also emphasized. Besides the main points of recently published Hungarian Road Technical Directives are presented. Finally, some long-term performance data of Roller Compacted Concrete experimental (test) sections are discussed.
Results. This technology gives a favourable economical alternative for several layers in rigid and semi-rigid pavement structures, pavements carrying heavy loads in low-speed areas, as well as dams. Its trial use and later the introduction of the technology into the so-called “technological choice” is recommended in every country, included Ukraine.
