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Therefore, the corrosion of rebar has been one of the main factors to cause the failure of concrete structures [6, 7].
The samples (Φ14mm ×450mm) are used for corrosion rate measure and mechanical properties tests.
The tensile mechanical properties, including yield strength, tensile strength and elongation, are tested by a hydraulic pressure universal testing machine.
And the corrosion rate calculation and mechanical properties tests are carried out.
These will affect the strength properties of rebar.

For the tested plasters, complete set of basic physical, mechanical, hygric and thermal properties was experimentally accessed.
Basic Physical Properties.
Mechanical Properties.
Among the mechanical properties, compressive strength, flexural strength and dynamic Young’s modulus were measured.
Thermal Properties.

Weld microstructures greatly influenced the mechanical properties of welded joints.
A detailed analysis was conducted on the weld zone composition, the microstructural, and mechanical properties.
Mechanical Properties.
Generally, the mechanical properties of the welded joint seemed in an excellent performance.
Mechanical and structural properties of similar and dissimilar steel joints.

Study on Mechanical Properties of Compound-umbrella Arch in Bias Tunnel Entrance Xiaohui Xuea, Zhijie Sunb, Zhongming Suc and Fei Songd Shanxi Transportation Research Institute, Key Laboratory of Highway Construction & Maintenance Technology in Loess Region, Ministry of Transport, Taiyuan 030006, China a582991719@qq.com, b46395114@qq.com, c375216207@qq.com, dsongf1980@163.com Keywords: bias tunnel; compound-umbrella arch; mechanical properties; monitoring and measurement; finite element analysis.
For a comprehensive analysis of the mechanical properties of compound-umbrella arch in the unsymmetrically loaded tunnel entrance, we focus on the force characteristics to optimize the structure of composite umbrella arch, and improve its economic efficiency.
For analyzing the mechanical properties of the compound umbrella arch in bias tunnel entrance, this paper monitors the pile base stress, the pile body stress, the steel frame stress and the vault crown settlement in Linwu tunnel.
There is no factor to interfere it, so it will work in long-term.
Fig. 7 The bending moment diagram Fig. 8 The axial force diagram Conclusion In the case of bias terrain, the pile bottom stress is uneven distribution, which will easily cause uneven settlement in basement, and affect the stability of the overall structure.

The paper presents the influence research results of the structure of the original polymer composition on the resulting films physical and mechanical properties.
Surface tension, pH, viscosity and other factors play a significant role in compiling the recipe for the composition and determining its processing technology.
The effect of the ratio of comonomers on the physical, mechanical and technological properties of latex films for the obtained polymer compositions was evaluated.
Assessment of the physical and mechanical properties of latex films was carried out by standard methods.
Physical and mechanical properties of films from thickened latex compositions Physical and mechanical indices Initial thickened composition Modified composition quantitative content DOF, [mass. parts] 5,0 10,0 1. 

Analysis on Influencing Factors of Bus Bar Contact Resistance Shunxin LIU, Wenli HUANG and Zhenhua WEN Zhengzhou Institute of Aeronautical Industry Management.
The influencing factors of contact resistance are analyzed in this paper.
These substances will impede the movement of [4] free electron, thereby increasing the resistance of the parts; increase the amount of resistance caused by these substances called membrane resistance. 1——apparent contact；2——real contact；3——contact pattern Fig. 1 Electrical contact situation Influence Factor Resistance of the contact site may be affected by many factors, which mainly are: the nature of the material, position of contact pressure, contact parts of the processing quality and the temperature rise, the following specific analysis. conductor material resistivity, Brinell hardness, and chemical properties of the metal compounds,  mechanical strength and so on, the resistance size will affect the position of the contact. 
In reality, the need to the above two factors, analysis and judgment of the size of specific contact resistance 2) contact quality and temperature Finish can affect the number of valid contact point contact parts of the contact surface, the contact surface can be rough machining, even by mechanical or electrochemical polishing. 
Each kind of material will have the inflection point -pressure, its value is determined by the properties of the material itself. 

Experimental Determinations for the Massive Masonry Resistance of Patrimony Buildings Subjected to the Action of Environmental Factors and Mechanical Demands PhD.
The paper presents the results of the experimental determinations of the resistance of the massive masonry elements from a patrimony building in the Oltenia Region, the masonry under the action of the environmental factors and the strong seismic movements occurring during their lifetime.
The main causes of deformation are environmental causes, material properties (contraction, slow flow, obesity) that make up masonry, and tasks that can be constant or accidental
Input factors / parameters Church of St.
Climate Climate zone II Humidity The southern part is the worst affected.

Hybridization of synthetic fiber and natural fiber is one of the potential strategies to enhance the mechanical properties as well as the degradability of such composite materials.
It was found that, the optimized factors that affects the coefficient of friction and wear is at load 30 N and sliding velocity of 52.36 m/s.
The generated equation models are bounded within the wear test control factors and ranges.
In addition, regression analysis was used to derive the mathematical models of the control factors and their interactions.
Pal, S.K., Mechanical properties of woven jute–glass hybrid-reinforced epoxy composite, J.

The fiber-matrix interface properties usually strongly affect the properties of fiber-embedded composites.
For example, interface bonding strength is one of the key factors affecting the strength of a composite.
For example, a high interface sliding strength is one of the key factors for the toughening of a fiber-embedded composite.
Results and Discussion Interface Properties.
The effects of their fiber-matrix interface properties on the mechanical and repair properties of the composites were evaluated.

In order to intensively study the stability influencing factors of rockfill dam slope in tailing pond, it was simplified to the common rock slope.
Combining the two results through the above two methods, the main affecting factors of the rockfill dam slope’s stability are: rock density, slope angle and the angle of internal friction.
In this paper, RS theory and PCA method are combined to research main factors affecting rockfill dam slope’s stability, and provide the evidence for the stability evaluation and analysis.
Data collecting and processing According to the influence factors of slope stability, we collected 45 groups’ typical examples.
(2) For rockfill dam slopes’ stability influencing factors, rock density of is the largest one, so before choosing damming material we should test the stone material mechanical performance and then choose the density larger stone, such as: granite, syenite, gabbro, diorite, etc.