A5001280698- Concrete and Cement Materials Research
- Magnesium Oxide Properties and Applications
- Recycling and utilization of industrial and municipal waste in materials production
- Building materials and conservation
- CO2 Sequestration and Geologic Interactions
- Calcium Carbonate Crystallization and Inhibition
- Clay minerals and soil interactions
- Zeolite Catalysis and Synthesis
- Chemical Synthesis and Characterization
- Innovative concrete reinforcement materials
- Advanced ceramic materials synthesis
- Thermal and Kinetic Analysis
- Glass properties and applications
- Bauxite Residue and Utilization
- Pigment Synthesis and Properties
- Metal Extraction and Bioleaching
- Textile materials and evaluations
- Advanced materials and composites
- Methane Hydrates and Related Phenomena
- Additive Manufacturing and 3D Printing Technologies
- Materials Engineering and Processing
- Recycled Aggregate Concrete Performance
- Bone Tissue Engineering Materials
- Cultural Heritage Materials Analysis
- Electric Power Systems and Control
Kaunas University of Technology
2015-2024
Abstract This work combines some aspects of eco-friendliness: consumption toxic waste, cutback energy during the synthesis binding material, reduction CO 2 emission by using less CaCO 3 in raw meal, and carbon dioxide. In study, kinetics two-step wollastonite from CaO AlF production namely, silica gel, its carbonisation process mechanical properties obtained samples were investigated. According to XRD DSC data, optimal temperature mixture with CaO/(Al O + SiO ) = 1 for hydrothermal...
Abstract Due to the high CO 2 -footprint of ordinary Portland cement (OPC), search for alternative binders is now in a full swing. Rankinite—which hydraulically inactive material and low calcium, real OPC, as it absorbs harmful greenhouse gas from air through carbonation hardening. Nevertheless, hardening has not yet been fully clarified sufficiently investigated. In this study we show that rankinite achieves final strength exceeding 100 MPa at 45 °C 24 h, whereby binder only ~ 50%...
The main measure to reduce energy losses is the usage of insulating materials. When temperature exceeds 500 °C, silicate and ceramic products are most commonly used. In this work, high-crystallinity 1.13 nm tobermorite xonotlite were hydrothermally synthesized from lime Ca−Si sedimentary rock, opoka. By XRD, DSC, TG dilatometry methods, it has been shown that becomes predominant compound in stirred suspensions at 200 °C after 4 h synthesis mixture with a molar ratio CaO/SiO2 = 0.83. It...
Abstract In this work, the optimal conditions of synthesis eco-friendly cement by using industrial wastes as well peculiarities its early stage hydration were investigated. The was synthesized within 1000–1250 °C temperature range when targeted composition 60% belite, 20% ye’elimite, and brownmillerite. It determined that sintering for is 1100 because primary compounds fully reacted, hydraulic active dominant in products. Microcalorimetry analysis performed investigation hydration. best...
In this study, the stability of synthetic calcium monosulfoaluminate and reaction mechanism its conversion into ye`elimite during thermal treatment were examined. The was produced referring to stoichiometry by applying mechanochemical (dry grinding at 900 rpm with 3 on-off cycles 10 min) followed hydrothermal synthesis (for 8 h 110 °C). data indicated that prepared sample consists Ms12 (~ 54.8%), CaCO3 1.9%), Ms10.5/Hc 0.7%) amorphous content 42.6%). Meanwhile, assessment in-situ XRD...
The idea of this work is to reduce the negative effect ordinary Portland cement (OPC) manufacture on environment by decreasing clinker production temperature and developing an alternative rankinite binder that hardens in CO2 atmosphere. common OPC raw materials, limestone mica clay, if they contain a higher MgO content, have been found be unsuitable for synthesis CO2-curing low-lime binders. X-ray diffraction analysis (ex-situ in-situ range 25-1150 °C) showed akermanite Ca2Mg(Si2O7) begins...