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Research on mechanical properties of C100 high-strength concrete used for frozen shaft Hongqiang Chu1 a, Linhua Jiang1, Ning Xu2, Chuansheng Xiong1 1College of Mechanics and Materials, Hohai University, Nanjing 210098, China 2Nanjing Hydraulic Reasarch Institute, Nanjing 210098, China achq782009@126.com Keywords: frozen shaft, C100 high-strength, mechanical properties Abstract.The mechanical properties of C100 high-strength concrete used for frozen shaft were studied in this research.
Therefore, the fresh concrete work property directly affects the application and promotion of the concrete.
Many factors affect the elastic modulus of concrete.
Almost all the factors affecting the strength affect the elastic modulus.
High-performance concrete Preparation and mechanical properties [D], Nanjing: Hohai University, 2006 [3] Cui Pengfei.

Difference in the mechanical properties observed between both methods is attributed to the presence of a metal disk attached to the non-metallic sample for electromagnetic.
The cantilever beam type specimen is usually used to determine the damping properties of the material.
As a result of the loss factor is also affected.
However, the good agreement of these properties obtained by both methods for the metallic sample ascertains the reliability and advantages of the method.
References [1] ASTM E 756, Standard test method for measuring vibration-damping properties of materials (1998) [2] ISO 6721-1, Plastics - Determination of dynamic mechanical properties, Part 1 - General principles (2001) [3] ISO 6721-3, Plastics - Determination of dynamic mechanical properties, Part 3 - Flexural vibration resonance curve method (1994) [4] M.D.

Mechanical and Physical Properties of Nano-Metals Malgorzata Lewandowska1,a, Andrzej Zagorski1,b, Krzysztof J.
The aim of this paper is to review recent results on mechanical and physical properties of nano-metals produced by hydrostatic extrusion.
Mechanical Properties Nano-metals, in general, exhibit very high yield stresses as grain size is a prime microstructural parameter affecting the mechanical strength.
Summarizing considerations given above, it is worth noting that although grain size refinement down to nanoscale offers a great possibility to improve mechanical strength, there are factors limiting grain size strengthening.
Fatigue strength is one of the most important mechanical properties of engineering materials.

The results show that the spindle speed and voltage are mainly two factors to affect cutting depth of the workpiece.
The study applies the orthogonal experimental method to design a set of experiments, analyzes the various parameters which affects the depth of electrolysis mechanical composite cutting, and identifies the key influencing factors to summarize the laws.
When take the factors which affect cutting depth of the workpiece in the NC electrochemical-mechanical composed cutting process into deep consideration, parameters of the experiment are identified as: voltage, Electrolyte pressure, electrolyte temperature, spindle speed and electrolyte concentration.
The experiment is based on the L16 (45) orthogonal table and factors level table is shown in Table 1.
The fluctuations of the data in the figure should be the interferences of other factors.

The results show that the reservoir landslide stability affected by the seepage field changes with changing reservoir level is controlled by a variety of factors, including the hydrodynamic pressure, hydrostatic pressure, uplift force, physical and mechanical properties (с, φ value change).
When the water level fluctuates at a lower rate, the pore water pressure, uplift force and physical and mechanical properties are the dominant factors.
Here are the impact factors below [4, 7].
Physico-mechanical properties changes.
But after the stability coefficient reaches the minimum, the change of physical and mechanical properties (с, φ) starts to be the dominant factor instead

Analysis of the main factors affecting the surface morphology of FSJ joint Yongfang Deng Dunwen Zuo Bo Song College of Mechanical & Electrical Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing, China, 210016 xyzqdeng@163.com Keywords: FSJ Factors analysis surface morphology arc lines Abstract.
Since FSJ was invented, many works have been punished to address the microstructure texture and mechanical properties of FSJ joints.
In order to investigate the main factors for FSJ processing affect the surface topography of joint, the following tests were carried out: 1.
Recent advances in friction-stir welding – Process, weldment structure and properties [J].
Microstructures and Mechanical Properties of Banded Textures of Friction Stir Welded 7075-T6 Aluminum Alloy [J].

The factors affect the finishing temperature of the plate were analyzed, including the holding time during control rolling, rolling speed, slab temperature and pass number.
Introduction Finishing temperature, which influences the mechanical properties and microstructure, is an important parameter during rolling process.
So high-precision and practical temperature model are the base of predicted accuracy of online rolling force model and microstructure and properties model, which are used to ensure the final product dimensional accuracy and mechanical properties.
Factors affecting plate finishing temperature Holding time.
Analysis of rolling pass number affecting the finishing temperature of media plate.

The paper deals with the properties, quality and durability of the exposed concrete.
Chemical and physicochemical processes in which concrete breaks while reducing the main physical and mechanical properties of concrete are collectively called concrete corrosion.
These are mechanical, physical and chemical properties.
The colors balance of concrete influences many factors.
Another important factor affecting coloring is the compaction process of the deposited mixture.

Based on the summary and analysis of experiments, the authors discussed the influence of fill factor on performance of internal mixers and physical and mechanical properties of the rubber compound.
As an important performance parameter of the mixer, it affects not only the production capacity of the mixer, maximum power consumption, unit energy consumption, mixing time and discharge temperature, but also the mixing quality (physical and mechanical properties and dispersion) [1].
In this paper, with the conditions of the same ram piston pressure, cooling water temperature and rotor speed, the experiments were carried on to study the influence of fill factor on mixing performance of mixer and physical and mechanical properties of rubber compound in four types of X(S)M-1.7L mixer: intermeshing rotor mixer, variable intermeshing clearance mixer, shearing rotor mixer and variable shearing clearance mixer.
It depends on the changing rate of the two factors.
But the optimal value can not be theoretically calculated, because the factors which affect the fill factor is too many and too complex, such as the mixer type, the rotor speed, cooling water temperature, ram piston pressure, recipe, feeding ways and operation methods and most of these factors are difficult to quantify.

This research effort aims to evaluate the mechanical properties of concrete with two aggregate type, light weight and normal weight at elevated temperatures.
According to previous research [1], the factors that influence the strength of concrete at high temperature divided in to two groups: material properties and environmental factors.
In addition, heat resistance of concrete affects by environmental factors such as heating rate, duration of exposure to maximum temperature, cooling rate, loading conditions and moisture regime.
Since aggregates make up the bulk of concrete, their properties largely determine concrete properties.
Overall results conclude that, aggregate type and loading conditions significantly affects the mechanical properties of concrete.