Mechanical characterization of a FRCM system with aramid fiber fabric embedded in green high-strength cementitious matrix

2020 ◽  
Vol 6 (2) ◽  
pp. 1-13
Author(s):  
Munkhtuvshin Ochirbud ◽  
Donguk Choi ◽  
Undram Naidanjav ◽  
S.-S. Ha ◽  
C.-Y. Lee
2017 ◽  
Vol 4 (2) ◽  
pp. 3166-3172 ◽  
Author(s):  
C. Venkateshwar Reddy ◽  
P. Ramesh Babu ◽  
R. Ramnarayanan ◽  
Dilkeshwar Das

2021 ◽  
Author(s):  
Moira K. Lauer ◽  
Zoe E. Sanders ◽  
Ashlyn D. Smith ◽  
Rhett C. Smith

The extent to which lignocellulose biomass particle size influences the properties of biomass–sulfur composites prepared from these particles was evaluated.


2019 ◽  
Vol 817 ◽  
pp. 371-376 ◽  
Author(s):  
Peng Zhen Chen ◽  
Francesco Finelli ◽  
Elisa Franzoni ◽  
Cristina Gentilini ◽  
Gabriele Sansone

High strength steel bars are widely used for the strengthening of masonry buildings, in particular to improve the connection between different structural elements, such as orthogonal walls and multi-leaf walls. A particular type of steel connector is the twisted bar, which due to its particular shape works as a self-threading screw, anchoring to the support material without any binder. The effectiveness of such technique mainly relies on the bond between the bar and the substrate, where adhesion, mechanical interlocking and friction play an important role. In this paper, a preliminary experimental study on pull-out behavior of twisted steel connectors inserted in brick units of different materials that can be commonly found in existing masonry buildings in Italy and in Europe is presented. Additionally, mechanical characterization of the materials is conducted to understand the influence of the compression strength and elastic modulus on the adhesion between the connector and the substrate. Preliminary results show that the pull-out response strongly depends on the mechanical properties of the substrate material.


Author(s):  
I. S. El-Mahallawi ◽  
K. Eigenfeld ◽  
F. H. Kouta ◽  
A. Hussein ◽  
T. S. Mahmoud ◽  
...  

The present investigation studies the processing of A356 Al-Si alloy containing up to 5% vol.-% nano-sized al2o3 particles having size less than 500 nm. Composites were prepared using semi-solid casting route. To evaluate the results the alloys were further characterised by various metallurgical and mechanical characterization methods. The results showed that introducing nano-particles into semi-solid slurries promises to be a successful route for producing a new generation of cast metal matrix nano-composites (MMNCs). The nano-composites showed high strength values associated with superior ductility, low porosity content, high corrosion resistance, and improved electrical conductivity compared to the alloy without particles addition under the same casting conditions.


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