Research

Development of a method for minimally invasive and millimetre-precise milling of tree pits (min. 1200 mm diameter) in existing asphalt and concrete surfaces using core drilling equipment, excavation of planting pits (min. 1500 mm deep) in different soil types, quick and easy temporary securing of planting pits, efficient and fast soil loosening. Development of a method for creating aeration holes (min. 100-160 mm diameter) including soil loosening (min. 1200 mm depth) and identification of suitable filling and sealing materials for the creation of surfaces that comply with ÖNORM B 1600. Development of a method for the minimally invasive creation of permanent and temporary irrigation solutions. Creation of microtrenching milling for the rapid laying of supply lines, identification of suitable irrigation controls, sensors and pipes. Development of a new, optimised and precisely fitting tree surround including root ball support that can be manufactured cost-effectively and in series. Development of a modular tree impact protection system. Development of a suitable biotech filter substrate that enables the discharge of surface water in accordance with ÖNORM B2506-3 despite low substrate volume and provides all necessary filter performance in the long term.

This project focuses on the development and testing of innovative films with a riplet surface, designed to be used in hydropower plants to enhance their efficiency. The aim is to evaluate the suitability of these films in preventing algae, fungi, and biofilm growth. The ISIG is responsible for establishing and conducting appropriate testing methods. A particular focus is placed on assessing the effects of antimicrobial particles embedded in the film structures on biofilm growth. Additionally, it will be examined whether undesirable substances are leached from the films or the adhesive used to attach the films. Finally, a practical test will be conducted in the inflow of a hydropower plant, where samples will be taken and analyzed to determine whether biofilm formation occurs.

The study will summarize current survey results among Austrian water suppliers with a focus on the flood situations of 2024 and the resulting effects on the reliability of water supply and put them in context with the results of previous studies. The work includes the design of the survey (draft, specification and additions to the questionnaire based on the previous surveys), as well as the analysis and evaluation of the new survey results and integration in a final report.