Results 31 to 40 of about 1,099,737 (318)

Study of the Structural, Optical and Strength Properties of Glass-like (1−x)ZnO–0.25Al2O3–0.25WO3–xBi2O3 Ceramics

open access: yesCrystals, 2022
The main purpose of this work is to study the effect of substitution of zinc oxide for bismuth oxide in the composition of (1−x)ZnO–0.25Al2O3–0.25WO3–xBi2O3 ceramics, as well as the accompanying processes of phase transformations and their influence on ...
Artem L. Kozlovskiy   +3 more
doaj   +1 more source

A Study of Fly Ash-Based Geopolymers with Basalt Flour Addition

open access: yesMaterials Proceedings, 2023
The purpose of this study is to evaluate the effect of basalt flour addition, replacing quartz sand, and its proportion on fly ash-based geopolymers’ properties. As a base material, F-grade fly ash was used. The activation process was carried out using a
Barbara Kozub   +2 more
doaj   +1 more source

Discussion: Remoulded shear strength at plastic and semi-solid states [PDF]

open access: yes, 2013
The undrained shear strength of remoulded soils is of great concern in geotechnical engineering applications. This study aims to develop a reliable approach for determining the undrained shear strength of remoulded fine-grained soils, through the use of ...
Vardanega, Paul Joseph   +10 more
core   +1 more source

Polymer composites containing waste dust from power production I. Influence of particles’ mechanical activation on composite’s strength characteristics

open access: yesMacedonian Journal of Chemistry and Chemical Engineering, 2008
Polymer composites containing filler of waste dust from power production were studied. Waste particles were mechanically treated at room temperature for 30 minutes and the influence of mechanical activation on particles size distribution, chemical ...
Milena Koleva   +2 more
doaj   +1 more source

Structural characteristics, compression and strength properties of plain weft-knitted fabrics before and after washing [PDF]

open access: yesTekstilna industrija, 2023
The structural characteristics, compression, and strength properties of knitted fabrics, before and after washing, were investigated in this paper. The experimental material consisted of three plain weft-knitted fabrics produced of cotton, wool, and ...
Asanović Koviljka   +3 more
doaj  

Sustainable Alternatives to Cement: Synthesizing Metakaolin-Based Geopolymer Concrete Using Nano-Silica

open access: yesConstruction Materials, 2023
The emission of carbon dioxide gas from the cement manufacturing industry has raised concerns about global warming. Geopolymer concrete (GC) is gaining attention as a sustainable and environmentally friendly alternative to traditional cement concrete ...
Sarwar H. Mohmmad   +4 more
doaj   +1 more source

Ultrahigh Strength Steel: Development of Mechanical Properties Through Controlled Cooling [PDF]

open access: yes, 2011
Structural steels with very high strength are referred as ultrahigh strength steels. The designation of ultrahigh strength is arbitrary, because there is no universally accepted strength level for this class of steels.
S. K. Maity   +5 more
core   +2 more sources

A Study on the Drying Shrinkage and Mechanical Properties of Fiber Reinforced Cement Composites Using Cellulose Nanocrystals

open access: yesInternational Journal of Concrete Structures and Materials, 2019
As part of the research on cement composites using cellulose nanocrystal (CNC) aqueous solution instead of general water, this study produced high-toughness cement composites reinforced with flax and steel fibers to improve the tensile deformation ...
Hyung-Joo Lee   +3 more
doaj   +1 more source

Fine-grained concrete with various types of fibers

open access: yesИнженерно-строительный журнал, 2020
This paper investigates the strength properties of the fine-grained concrete reinforced with the amorphous fiber based on the Fe-B-C system and obtained by the "spinning" method, and concretes reinforced with commercially available types of fibers: fiber
Yasmin Begich   +3 more
doaj   +1 more source

On the strength of comparisons in property testing

open access: yesInformation and Computation, 2004
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
openaire   +3 more sources

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