A5036830606- Concrete and Cement Materials Research
- Building materials and conservation
- Recycling and utilization of industrial and municipal waste in materials production
- Materials Engineering and Processing
- Innovative concrete reinforcement materials
- Metal Extraction and Bioleaching
- Microbial Applications in Construction Materials
- Environmental Chemistry and Analysis
- Surface Treatment and Coatings
- Iron and Steelmaking Processes
- Coal and Its By-products
- Concrete Properties and Behavior
- Calcium Carbonate Crystallization and Inhibition
- Healthcare and Environmental Waste Management
- Mine drainage and remediation techniques
- Industrial Gas Emission Control
- Heavy metals in environment
- Mineral Processing and Grinding
- Advanced ceramic materials synthesis
- Concrete Corrosion and Durability
- Odor and Emission Control Technologies
Slovak Water Management Enterprise
2016
Pennsylvania State University
1999
Utility properties of novel hybrid cement (H-Cement) are influenced by pozzolanic reaction fly ash, latent hydraulic metallurgical slag together with the alkali activation inorganic geopolymer based on precipitated waste water coming from bauxite residues. Content Portland clinker is at maximum 20 mass %, remaining portion consists geopolymer. Up to 80% CO2 emissions saved H-Cement manufacture compared ordinary (OPC). No heat treatment or autoclaving needed production. The field application...
The article deals with studying the antifungal effect of ground granulated blastfurnace slag (GGBS) and cements made from it.Antifungal effects were tested on fungi using procedure given in Czech national standard ČSN 72 4310: 1977 -Testing mould proofness properties building products materials.A mixture Aspergillus niger, Chaetomium globosum, Penicillium funiculosum, Paecilomyces variotii Gliocladium virens was used for testing.The scale evaluating according to is 0 5 degree growth, where a...
The article deals with the study of biocorrosion concretes by sulphuric acid induced oxidizing bacteria Acidithiobacillus thiooxidans . were prepared from reference cement CEM I 42,5 N, mixtures N and antimicrobial ground granulated blastfurnace slag BIOLANOVA (GGBS) (with amount GGBS 65 mass % - III/A 32,5 75 III/B 85 III/C a 95 N) novel hybrid H-CEMENT (HC). experiments carried out in model laboratory conditions at 30 °C during 91 days. degree deterioration concrete samples has been...
Abstract The article deals with the study of effects alternative fuels and raw materials on cement clinker quality. quality was expressed by content two principal minerals alite C 3 S belite 2 S. additions ashes materials, in principle, always increased conversely reduced amount alite. high ash were used such as meat-bone meal, sewage sludge from treatment plants paper metallurgical slags - granulated blastfurnace slag, air cooled slag demetallized steel fluidized bed combustion fly waste...
Fly ashes, from an extensive database showing extremes in ratios of major oxides, are considered as potential raw meal ingredients for preparation sulfoaluminate cements. Simple algorithmized, essentially Bogue-like, computations performed order to create a link between the chemical composition meals and their mineralogical composition, expected result burning. The refer set three-component meals, all containing limestone gypsum but differing kind fly ash introduced third component....
The article deals with studying the antimicrobial efficiency of finely ground metallurgical slags, such as granulated blast-furnace slag specific surface areas 340 (1Sa) and 520 m2/kg (1Sb), air cooled (2S), demetallized steel (3S), calcareous ladle (4S), copper (5S). was tested on microbial representatives, as: Gram-positive bacteria—Bacillus subtilis, Staphylococcus aureus, Micrococcus luteus; Gram-negative bacteria—Escherichia coli, Pseudomonas aeruginosa, Serratia marcescens;...
This article describes utilization of a cement kiln bypass dust as an added component in hydraulic road binder. Three experimental binder mixes (BM1–BM3) with variation the composition main constituents (cement clinker, ground limestone and granulated blast furnace slag) constant content (10%) were prepared under laboratory conditions. The properties constituents, fresh hardened specimens tested according to STN EN 13282-2 for normal hardening physical chemical all (fineness: +90 µm ≤ 15...
The article deals with studying the antifungal efficiency of carbide lime slurry compared to industrially manufactured commercial lime. Antifungal expressed as mould proofness properties was tested on fungi using procedure given in standard CSN 72 4310. A mixture Aspergillus niger, Chaetomium globosum, Penicillium funiculosum, Paecilomyces variotii and Gliocladium virens utilized for testing. scale evaluating according 4310 is from 0 5 degree growth, where means that no growth occurs...
The use of separately ground blast-furnace slag, added at the mixer as a replacement for portion Portland cement, has gained increasing acceptance in recent years. effects partial cement with slag on properties hardened concrete have been extensively investigated and reported. Both laboratory testing field experience shown that properly proportioned slag-Portland concretes improved resistance to sulfates seawater compared regular mixes. paper is focused sulfur-oxidizing bacteria...
Abstract This paper is aimed at the possibility of recycling cement bypass dust (BPD) and ground granulated blast furnace slag (GGBS) into a normal hardening hydraulic road binder in accordance with standard EN 13282-2. 10 wt.% addition BPD as potentially hazardous waste formed during clinker production by burning alternative fuels was used mixtures. Binder mixtures’ composition designed according to recommended sheet Slovak commercial product (DoroCem). The main constituents experimental...
Water absorptivity is heavily influenced by the volume and connectivity of pores in pore network cement composites has been used as an important parameter for quantifying their durability. To improve durability permeability mortars, various mineral admixtures such furnace slag, silica fume or fly ash are added into mortar concrete mixtures. These provide numerous advantages corrosion control, improvement mechanical physical properties better workability. This study investigated changes...
The article deals with comparative study of antimicrobial efficiency metallurgical slags suitable for construction applications. tested were as follows: granulated blast-furnace slag (GS1), air cooled (AS2), demetallized steel (DS3), calcerous ladle (LS4), from copper refining (CS5). activity was on selected representatives bacteria, yeasts, and filamentous fungi. highest antibacterial possessed LS4, which intensely inhibited growth bacteria the lowest concentration (10%) in media. 100%...
Article deals firstly with studying antimicrobial efficiency of ground metallurgical slags: granulated blast-furnace slag, aircooled demetallized steel calcareous ladle slag and copper slag.The was tested on microbial representatives: G + -bacteria; yeasts; fungi.The determined by dilution methods in agar growth media resulting concentrations 10, 20, 40 60%.The results gained testing the individual samples selected representatives biodeteriogenic microflora can be summarized as follows: are...