Open AccessAPPLICATION OF ROLLER-COMPACTED CONCRETE IN FREIGHT TERMINALS
Author(s) -
Rafal Mickevič,
Audrius Vaitkus
Publication year - 2020
Publication title -
mokslas - lietuvos ateitis
Language(s) - English
Resource type - Journals
eISSN - 2029-2341
pISSN - 2029-2252
DOI - 10.3846/mla.2020.13067
Subject(s) - roller compacted concrete , consolidation (business) , modulus , geotechnical engineering , materials science , compaction , structural engineering , young's modulus , slip (aerodynamics) , deformation (meteorology) , composite material , engineering , cement , accounting , business , aerospace engineering
In these days constantly being looking for solution to reduce construction costs, the amount of materials used and the negative impact on the environment. Designing pavement structures with top layer of traditional concrete, the structures become very massive because of variation of concrete thickness from 20 cm to 29 cm according to the standard structures with concrete which are given in KPT SDK 19. An alternative to traditional concrete is roller-compacted concrete, the concrete with significantly larger fine aggregates which lead concrete mix to be non-slip. The roller-compacted mix can also achieve high concrete density and consolidation by rolling. The experimental studies were performed according to the guidelines of the “Guide for rollercompacted concrete pavements” and the automated StreetPave program. Twelve different variants of the pavement structure were used in the calculations, in which the main variables were: the modulus of deformation (Ev2), the thickness of stabilized layer (CTS) and the modulus of elasticity (E). Calculations were also performed for two scenarios, assuming that the amount of cracks appearing on the surface of the top layer after the design period would be 5% and 10%.