A5054499311- Heavy metals in environment
- Isotope Analysis in Ecology
- Concrete and Cement Materials Research
- Marine and environmental studies
- Geochemistry and Geologic Mapping
- Geology and Paleoclimatology Research
- Innovative concrete reinforcement materials
- Recycling and utilization of industrial and municipal waste in materials production
- Radioactivity and Radon Measurements
- Geochemistry and Elemental Analysis
- Marine Bivalve and Aquaculture Studies
- Mercury impact and mitigation studies
- Building materials and conservation
- Paleontology and Stratigraphy of Fossils
- Therapeutic Uses of Natural Elements
- Marine and fisheries research
- Geological Formations and Processes Exploration
- Cultural Heritage Materials Analysis
- Magnesium Oxide Properties and Applications
- Heavy Metal Exposure and Toxicity
- Archaeological Research and Protection
- Geological and Geochemical Analysis
- Metal Extraction and Bioleaching
- Mineralogy and Gemology Studies
- Marine and coastal ecosystems
University of Ljubljana
2016-2025
Slovenian National Building and Civil Engineering Institute
2020-2024
Universidad de Sevilla
2024
Institute for the Protection of Cultural Heritage of Slovenia
2024
Abstract RILEM TC 267 TRM– “Tests for Reactivity of Supplementary Cementitious Materials” recommends the Rapid Reliable Relevant (R 3 ) test as a method determining chemical reactivity supplementary cementitious materials (SCMs) in Portland cement blends. In this paper, R was applied to 52 from wide range conventional and alternative SCMs with aim validate such test. An excellent correlation found between cumulative heat release bound water determined following method. Comparison results...
Elastocaloric cooling is emerging as one of the most promising alternatives to vapor-compression technology. It based on elastocaloric effect (eCE) shape memory alloys (SMAs), which occurs due a stress-induced martensitic transformation (superelasticity). In recent years, several proof-of-concept devices have been developed and best them already achieved commercially relevant characteristics. However, proposed are not yet ready for commercialization, mostly their short fatigue life,...
The COVID-19 pandemic has increased the use of disposable plastics, including medical masks, which have become a necessity in our daily lives. As these are often improperly disposed of, they represent an important potential source microplastics environment. We prepared from polypropylene masks and characterised their size, shape, organic chemical leaching, acute toxicity to planktonic crustacean Daphnia magna. three layers were separately milled characterised. Each inner frontal, middle...
Abstract The results of phase 1 an interlaboratory test, coordinated by the RILEM TC 267-TRM “Tests for Reactivity Supplementary Cementitious Materials” showed that R 3 (rapid, relevant, reliable) test method, measurement heat release or bound water, provided most reliable and relevant determination chemical reactivity supplementary cementitious materials (SCMs), compared to other methods. 2 work, described in this paper aimed improve robustness procedure develop precision statements...
Fluctuations in timber/treeline have largely been subjected to past climatic changes; but throughout the Holocene humans became one of leading drivers these changes. By understanding reasons for changes, we retraced climate variability and/or anthropogenic impact on alpine environment. This study focussed sedimentary sequence Lake ‘Jezero v Ledvicah’ (Julian Alps, Slovenia), which is currently located at treeline and covers last ca. 6200 years. We used mineralogical geochemical analyses...
The influence of different curing temperatures on the hydration belite-calcium sulfoaluminate cement was investigated at 20, 40 and 60 °C. kinetics hydrated phase assemblages were studied by isothermal calorimetry, X-ray powder diffraction, differential thermal analysis thermogravimetric analysis, as well field emission scanning electron microscopy. compressive strength development pastes also determined. Results showed that, early ages, faster higher elevated than ambient temperature. On...
Abstract The RILEM technical committee TC 247-DTA ‘Durability Testing of Alkali-Activated Materials’ conducted a round robin testing programme to determine the validity various durability methods, originally developed for Portland cement based-concretes, assessment alkali-activated concretes. outcomes tests evaluating sulfate resistance, alkali-silica reaction (ASR) and freeze–thaw resistance are presented in this contribution. Five different concretes, based on ground granulated blast...
Abstract The influence of different amounts gypsum on the hydration a belite-rich and ye'elimite-rich belite-calcium sulfoaluminate clinker (BCSA) was investigated. kinetics, phase assemblages compressive strength development cements prepared using ye’elimite/ calcium sulfate molar ratios 1, 1.5 2 were studied. Besides ettringite monosulfate, aluminium hydroxide, strätlingite, C−S−H, iron-containing siliceous hydrogarnet hydrotalcite present as products. Increasing amount increased ratio to...
This study presents research on the effect of Portland cement (PC) replacement with metakaolin mechanical behavior flax textile-reinforced cementitious matrices (TRCM). The composition and in-situ fibres was determined using X-ray diffraction thermogravimetric analysis, while reinforcement efficiency textile TRCMs investigated by three-point bending tests finite element analysis. High amounts PC provided a calcium hydroxide-free environment, more suitable for natural fibres, to avoid their...
Abstract Huge quantities of fly ash and bottom are generated from thermal power plants it presents great concern for country, mainly due to the environmental effects. In this study, ashes were characterized technical radiological aspects. Health effect activity radionuclides 226 Ra, 232 Th 40 K was estimated via radium equivalent (Raeq), external hazards index (H ex ), absorbed dose rate (D) annual effective (EDR). The specific surface area (40.25 m 2 g−1 particle density (1.88 g cm −3 ) LOI...
The incorporation mechanism of impurities derived from raw materials into a belite-sulfoaluminate cement clinker with bottom ash was investigated in two mixtures. Alkalis lowered the sintering temperature by 50 °C. Ti stabilized β belite and prevented formation γ-belite. Sodalite solid solution showed an incomplete substitution Si Al. At higher content ferrite trended towards perovskite composition. Although calcium sulfoaluminate only fully developted at 1300 °C, clinkers sintered 1200 °C...
An extensive study on using plant waste aqueous extracts as natural chemicals for in-situ synthesis of zinc oxide (ZnO) cotton is presented. Reducing agents were prepared from green tea leaves (GT), pomegranate peels (PG), and staghorn sumac (SsL) drupes (SsD), the alkaline medium discarded wood ash. Zinc acetate was found to be more appropriate precursor than nitrate. Formation ZnO confirmed by energy dispersive spectroscopy, X-ray photoelectron spectroscopy diffraction analysis (XRD). The...