Browsing Ústav chemie materiálů by Title
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The adhesion of plasma nanocoatings controls the shear properties of GF/polyester composite
(MDPI, 2021-02-16)High-performance fibre-reinforced polymer composites are important construction materials based not only on the specific properties of the reinforcing fibres and the flexible polymer matrix, but also on the compatible ... -
Application of Isothermal and Isoperibolic Calorimetry to Assess the Effect of Zinc on Hydration of Cement Blended with Slag.
(MDPI, 2019-09-10)This work deals with the influence of zinc on cement hydration. The amount of zinc in cement has increased over recent years. This is mainly due to the utilization of solid waste and tires, which are widely used as a fuel ... -
Blastfurnace Hybrid Cement with Waste Water Glass Activator: Alkali-Silica Reaction Study
(MDPI, 2020-08-17)Hybrid systems represent a new sustainable type of cement combining the properties of ordinary Portland cement and alkali-activated materials. In this study, a hybrid system based on blast furnace slag and Portland clinker ... -
Characterization and Corrosion Properties of Fluoride Conversion Coating Prepared on AZ31 Magnesium Alloy
(MDPI, 2021-06-02)Wrought AZ31 magnesium alloy was used as the experimental material for fluoride conversion coating preparation in Na[BF4] molten salt. Two coating temperatures, 430 degrees C and 450 degrees C, and three coating times, ... -
Characterization of Electroless Ni–P Coating Prepared on a Wrought ZE10 Magnesium Alloy
(MDPI, 2018-03-07)Electroless low-phosphorus Ni–P coating was deposited on a wrought ZE10 magnesium alloy including an advanced pre-treatment of the material surface before deposition. Uniform Ni–P coating with an average thickness of 10 ... -
Comparison of Testing Methods for Evaluating the Resistance of Alkali-Activated Blast Furnace Slag Systems to Sulfur Dioxide
(MDPI, 2022-02-11)Alkali-activated systems (AAS) represent an ecologically and economically sustainable inorganic binder as an alternative to ordinary Portland cement (OPC). One of the main benefits of AAS is their durability in aggressive ... -
Concrete Based on Clinker-Free Cement: Selecting the Functional Unit for Environmental Assessment
(MDPI, 2020-12-25)Improving the environmental situation and obtaining cement composites with new properties for various operating conditions is possible with the use of secondary resources. The paper is devoted to the criteria for evaluating ... -
Corrosion of low-carbon steel in sodium chloride solution containing a water-soluble fraction of humic acid
(Tanger, 2022-02-23)Humic acids are a heterogeneous mixture of organic compounds that are naturally found in water and soil. In recent years, there has been a growing interest in the application of green fertilizers containing humic acids in ... -
Crushed bricks as aggregate in cement based binder
(IOP Publishing, 2020-06-03)The work deals with the impact of crushed brick on properties of Portland cement binder. The source of brick recycled materials is not only the demolition waste, but also the waste from brick production. One way to reduce ... -
Decalcification resistance of various alkaliactivated materials
(IOP Publishing, 2021-09-29)The resistance of alkali-activated materials (AAMs) to degradation processes, particularly the decalcification, was studied in this paper. The ground granulated blast furnace slag was alkali-activated using various activators ... -
Durability of alkali-activated concretes containing cement kiln by-pass dust
(IOP Publishing, 2021-01-18)The aim of the presented work was evaluation of an effect of various conditions on the performance of two developed concretes based on alkali-activated slag and cement kiln by-pass dust (BD). BD was used as a partial ... -
Effect of alkali cation type on the plasticizing effect of ligno-sulfonate in alkali-activated systems
(IOP Publishing, 2021-09-29)The rheological properties of alkali-activated systems are significantly affected by the nature of the alkaline activator. Hydroxide-activated systems' workability is typically lower than that of alkali-activated systems ... -
The Effect of Biochar Application on Soil Properties and Growth of the Model Plant Zea Mays
(European Ecocycles Society, 2021-12-20)The classic way of land cultivation means the use of inorganic fertilizers that are salts that dissolve rapidly in a short time and improve soil fertility. This process negatively affects soil salinity and the life of ... -
Effect of curing environment on length changes of alkali-activated slag/cement kiln by-pass dust mixtures
(IOP Publishing, 2019-08-14)This paper investigates the combination of commonly used blast furnace slag (BFS) and quite non-traditional cement kiln by-pass dust (BD) for the preparation of alkali-activated binder. More specifically, the possibilities ... -
Effect of Porosity Gradient on Mechanical Properties of Cellular Nano-Composites
(MDPI, 2020-03-01)With their hierarchical architectures incorporating gradients in composition, porosity, and orientation, natural materials have evolved optimized balance of mechanical properties. Deciphered from the structure of bamboo, ... -
Effect of Selected Commercial Plasticizers on Mechanical, Thermal, and Morphological Properties of Poly(3-hydroxybutyrate)/ Poly(lactic acid)/Plasticizer Biodegradable Blends for Three-Dimensional (3D) Print
(MDPI, 2018-10-03)This paper explores the influence of selected commercial plasticizers structure, which are based on esters of citric acid, on mechanical and thermal properties of Poly(3-hydroxybutyrate)/Poly(lactic acid)/Plasticizer ... -
The Effect of the Thermosensitive Biodegradable PLGA–PEG–PLGA Copolymer on the Rheological, Structural and Mechanical Properties of Thixotropic Self-Hardening Tricalcium Phosphate Cement
(MDPI, 2019-01-17)The current limitations of calcium phosphate cements (CPCs) used in the field of bone regeneration consist of their brittleness, low injectability, disintegration in body fluids and low biodegradability. Moreover, no method ... -
Effectiveness of common water-reducing admixtures in alkali-activated slag pastes with different types of activator
(IOP Publishing, 2021-11-23)Rheology of alkali-activated slag (AAS) is a very complex issue, where the activator nature as well as its dose play an important role. Moreover, the use of water-reducing admixtures in these systems is an issue, as they ... -
Electrochemical Corrosion Behavior of Pure Mg Processed by Powder Metallurgy
(MDPI, 2021-08-19)Pure Mg samples were prepared by powder metallurgy using the cold and hot compacting methods. Cold compacted pure Mg (500 MPa/RT) was characterized by 5% porosity and the mechanical bonding of powder particles. Hot compacted ... -
Excellent, Lightweight and Flexible Electromagnetic Interference Shielding Nanocomposites Based on Polypropylene with MnFe2O4 Spinel Ferrite Nanoparticles and Reduced Graphene Oxide
(MDPI, 2020-12-10)In this work, various tunable sized spinel ferrite MnFe2O4 nanoparticles (namely MF20, MF40, MF60 and MF80) with reduced graphene oxide (RGO) were embedded in a polypropylene (PP) matrix. The particle size and structural ...