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Online since: May 2022
Authors: Matteo Gastaldi, Vahid Afroughsabet
The results show that substitution of OPC with CSA cement improves the mechanical properties of concrete but promotes corrosion of the steel fibers, affecting the durability of this material.
One of the main factors that affects the use this cement is the limited availability of the required raw materials, especially bauxite.
The hydration products and mechanical properties of CSA cement concretes were previously studied by other researchers [14-17].
Micro-mechanical properties of calcium sulfoaluminate cement and the correlation with microstructures.
Mechanical properties of steel fiber reinforced high strength lightweight self-compacting concrete (SHLSCC).
Online since: September 2014
Authors: Hai Xia Zhang, Lu Yuan He, Jia Wei Pei
In essence, the bond mechanism between FRP and concrete is stuck outside fiber reinforcement is much more complicated, the bond performance is affected by the types of FRP material, slot filling material and performance, slot size, clear distance between slots and the distance from slot to the edge of the concrete, concrete strength grade and other factors.
These factors are related to the economy of strengthening design and the reliability of the reinforcement effect.
Influencing Factors Failure Modes FRP bars embedded in reinforced concrete rectangular beam which considers secondary loading have bending failure modes[15] 1.
Among them, the failure mode 1 and form 4 belong to brittle failure, in the design, to avoid by controlling the FRP bar maximum and minimum amount of reinforcement; failure form 5 has nothing to do with structure design, the formation of mainly depends on bonding properties of colloid and the selection of construction methods.
The mechanical behavior of NSM FRP bars strengthened beams is affected by the initial load, FRP bars strengthening quantity, embedded length of FRP bars, the reinforcement ratio and other factors. 3.
Online since: February 2011
Authors: Yi Min Li, Guang Yao Wang, Hao He
Among the parameters, temperature was the most significant in affecting the interface morphology, followed by delay time, while injection velocity seemed to play no significant role.
The results were analyzed by taking account of rheological properties of the two feedstocks.
It was demonstrated the differences in the rheological properties of the metal feedstocks involved are key factors in determining the interface morphology of the molded parts.
The technological importance of the ability stems from its effect on various properties, and in particular on the mechanical behavior [6].
A good understanding of how and to what extent a molding parameter affects the interface morphology as well as its rheological reason is a prerequisite for controlling the morphology and properties of co-MIM parts.
Online since: December 2011
Authors: Xiao Lei Yang, Yong Wang, Yan Liu Ge, De Wei Deng
The mechanical performance and corrosion resistance of Zr-Nb alloy (Zr705) treated in different ways is tested, and it is found that those properties of Zr-Nb alloy are significantly affected by heat treatment.
They proposed that the solid solution content of Fe and Cr in α-Zr resulted from different heat treatments was an essential factor affecting the corrosion behavior of Zircaloy-4.
The research on low cost heat treatment of Zr alloy which has simple operation in chemical industries, especially some conventional process, such as water quenching and tempering and the mechanical properties of alloys is not yet enough.
Combine these two factors, black holes and the depth of dimples, the specimens 705-U and 850-T show a good ductility.
Combine these two factors above, black holes and the dimples, the specimens 705-U and 850-T show a better ductility than specimens 870-T and 870-Q.
Online since: November 2011
Authors: Shahrum Abdullah, Azman Jalar, Zulkifli R., Muhammd Nubli Zulkifli, Roslinda Shamsudin
In semiconductor packaging, conventional test procedures for evaluating mechanical properties of ball bonded gold wire bonding are well established.
To obtain mechanical properties, ball-bonded was cross-sectioned diagonally before indented at various locations.
This indicates test location plays important role in determining ‘meaningful’ mechanical properties.
Four areas or location represent nature aspect of ball bond physical and mechanical properties.
This shows that the location of the indentation must take into consideration in accessing mechanical properties of Au ball bond.
Online since: February 2017
Authors: Zhesfina Blednova, Peter Olegovich Rusinov, Maria Evgenievna Bezmogorychnaya
The article contains a block diagram of the mechanical activation process of multicomponent shape memory materials, taking into account the variety of influencing factors.
Introduction Currently, we observe the increased interest both from a scientific and from a practical point of view to fine-grained, submicrocrystalline and nanostructured shape memory materials (SME), due to their unique physical and mechanical properties and the possibility to extend the scope of their use.
Control of these processes at various stages of formation in high-energy impacts allows creating surface layers with special properties [2].
The advantage of using the energy intensity value as a criterion is that energy intensity can be calculated for two or three component alloys at any concentration of the components on the basis of thermodynamic properties and diagrams of system phases [16].
We designed an MA block diagram of multicomponent shape memory materials, taking into account the variety of influencing factors.
Online since: October 2014
Authors: Run Xia Li, Qing Li, Xiao Guang Yuan, Yan Jiao Tong, Zhe Liu, Xin Ying Luan
The number, size, shape and distribution of precipitated phases in the alloy were the key factor which affected the strength of the alloy, so increase the number of precipitated phases in alloy and improve the morphology and size of strengthening phase can significantly increase the mechanical properties of alloys [2-5].
Heat treatment is an important means to improve the mechanical properties of the alloy.
In this way, mechanical properties of the alloy were improved.
The effect of solid solution treatment on the microstructure and mechanical properties of 7B04 aluminum alloy [J].
The effect of heat treatment process on microstructure and mechanical properties of 6061 aluminum alloy [J].
Online since: January 2014
Authors: Winarto Winarto, Gandjar Kiswanto, Ario Sunar Baskoro, Suwarsono Suwarsono
Where the variation of these parameters will affect to the mechanical properties of welds (as response) was the shear strength.
Further analysis of the interaction between the welds properties and Friction Stir welding process parameters to obtain the optimum response, was carried out by applying Response Surface Methodology (RSM).
In sticking torque versus shoulder diameter plot, the product of two opposing factors produces a maximum sticking torque.
The variation of these parameters will affect to the mechanical properties (as the response), i.e. the tensile strength of welds joint.
(1) Where Y is the response, x1, x2, ... , xk,are independent factors from 1 to k, and the function Ф is called the response surface or the response function.
Online since: December 2010
Authors: Ning Li, Yan Zhang, Hao Bo Zhang, Qing Su
Theoretically, WSP could improve the mechanical properties, durability and ductility of concrete fundamentally.
Steps and methods Mechanical properties experiment.
The mechanical properties experiments are carried out in the standard laboratory at room temperature.
The mechanical properties test results of various types of concrete can be seen in Table3.The standard deviation are also shown in the table in the brackets.
Secondly, WSP concrete has good mechanical properties.
Online since: May 2016
Authors: Gobwute Rujijanagul, Kamonpan Pengpat, Sukum Eitssayeam, Tawee Tunkasiri, Narumon Lertcumfu, Denis Russell Sweatman, Pharatree Jaita
The mechanical properties increased with added plaster for microwave curing of 5 min.
The mechanical properties such as Vickers hardness and compressive strength were investigated.
Ueng, Main factors affecting mechanical characteristics of geopolymer revealed by experimental design and associated statistical analysis, Cons.
Rangan, Factors influencing the compressive strength of fly ash-based geopolymer concrete, Civil Engineering Dimension 6 (2004) 88–93
Chaudhary, Mechanism of geopolymerization and factors influencing its development: A review.
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