This report presents experimental research conducted to verify the suitability of a specific type of recycled aggregate concrete (RAC) for structural use. The recycled concrete aggregates (RCA) used in the RAC mixtures considered here were obtained from precast panels taken from high-rise buildings, which are typical residential structures in former Eastern Bloc countries of the European continent. Precast panels from these buildings are often considered to be unsuitable sources for structural RAC mainly on account of their poor material base and the low-skilled construction workforce and questionable quality control involved in their production. The scope of testing was determined according to guidelines stated in the EN 206-1 standard. During the execution of the tests, the following characteristics were determined for the RCA: particle size distribution; amount of fine particles; particle density; water absorption; shape index and Los Angeles abrasion resistance. Afterwards, RAC specimens were prepared on the basis of recipes developed in accordance with the EN 12390 standard, and underwent tests which evaluated the following properties: slump; air content; fresh concrete density; compressive strength; flexural strength; hardened concrete density and water absorption. The gained test results show the technical suitability of the tested RCA sources for producing medium strength structural RAC. The obtained RCA water absorption values are relatively high compared to natural aggregate (NA), and the 28-day strengths exhibited by most of the RAC specimens are one class lower than the target values. In spite of these deficiencies, the tested RCA still can be classified as suitable for medium strength structural RAC provided that these predispositions are taken into account during recipe design. The necessity to test the properties of RCA, as soon as its source is taken into consideration, reduces possibilities for general conclusions. Nevertheless, the report provides concrete manufacturers with practically applicable information for the processing of precast panels from deconstructed buildings, gathering a suitable RCA and the production of structural RAC. The aim of the second part of the project was to develop the optimization model for production and transport of ready-mixed RAC. The associated goal was to achieve the cost optimal delivery of RAC for selected construction site.
D.06 Final report on a foreign/international project
COBISS.SI-ID: 22659606During the consultations specialy selected experts presented the advantages and novelties of using fibre-plaster in contemporary buildings. In addition to the prescribed computational methods for determining racking and fire resistance, ecological and building aspects were presented, as well as practical tests of burglar and fire resistance of a wall coated with Riduro panels.
B.01 Organiser of a scientific meeting
One of the requirements arising from the European Directive 2008/96/EC is that all roads on TEN corridors, as well as roads that are not on the corridors, but the member states wants to receive a European grant, must pass through Road Safety Audit process. At our faculty we have two certified Road Safety Auditors. This is the third part of the project ''Pelješac Bridge and connecting roads’’.
F.17 Transfer of existing technologies, know-how, methods and procedures into practice
COBISS.SI-ID: 22165526The IQ HOME programme develops technological solutions, which inter-connectivity forms an “Intelligent home of the new generation designed on smart appliances and wood”. Such home is built from natural human-friendly materials – particularly wood, what also signifies a new paradigm in the area of adapting to humans with a non-invasive artificial intelligence. In the programme framework new solutions in the design of the entire home are foreseen.
D.06 Final report on a foreign/international project
COBISS.SI-ID: 22227222Motorcyclists belong to the group of vulnerable road users. This was also established by the EC, which in the new Directive 2019/1936/EC included motorcyclists in the group of vulnerable road users (Articles 3 to 6 a). The Traffic Safety Agency of the Republic of Slovenia is the competent institution for the implementation of the aforementioned directive in the Republic of Slovenia. Among the debt is also the training of Road Safety Auditors to perform road infrastructure audits from the perspective of all road users - also motorcyclists. The material is intended for the training of Slovenian Road Safety Auditors.
F.18 Transfer of new know-how to direct users (seminars, fora, conferences)
COBISS.SI-ID: 22597654