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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.

The effect of short-term aging on rheological properties of asphalts was studied.
Introduction Asphalts ageing is one of the principal factors causing the deterioration of asphalt pavements.
It is responsible for a deterioration of the physical and mechanical properties of the asphalt binders [2,3].Rolling thin film oven test (RTFOT) are used for examining the thermal degradation during short-term ageing [4,5].
Its basic properties were illustrated in Table 1.
Consequently short-term aged process mainly influences the low temperature properties of asphalt.

Effect of TiC Addition and Cooling Rate on Mechanical Properties of 316L Stainless Steel Composites Shaojiang Lin1, 2, a, Saiyu Wang 1, b 1.
The effect of TiC particle addition and cooling rate on the mechanical properties of 316L stainless steel composites has been investigated.
When the goal is to improve the mechanical properties, ceramic particles such as Y2O3, SiC, Al2O3 and TiC are used on account of their mechanical properties [3-5].
In PM process, sintering is a critical step that affects the final density as well as the mechanical properties.
Mechanical Properties of Composites.

Current experiences shows that the structure design should be optimize due to relatively new fine-grained cement-based Hi-Tech material with excellent mechanical and durability properties.
A lot of works are focused on a basic mechanical properties and durability tests.
Mixture design (dosage and type of cement, fineness, water/binder ratio and granularity), bulk density, air conditions, shape and dimmensions are the basic factors that affect the volumetric changes.
The shape and the dimension of the specimen are important factors for subsequent evaluation of the overall shrinkage with respect to the real application of the matrix.
Previous project of UHPC were focused on a basic material properties.

Z.X Lu et al.[4] studied the mechanical properties of conventional polyurethane foam plastics and composites reinforced by glass fiber bundles.
The mechanical properties were analyzed by Rouisona et al. [6], who made use of kenaf fiber and unsaturated polyester resin to produce the composites by using the resin transfer molding method.
The study on the preparation and mechanical properties of the ramie fiber reinforced polyurethane foam and thermoplastic composites were investigated by J.Y.
As we know from contents, the fiber length and fiber surface modified method were more important factors that affected the impact strength.
The fiber length and fiber coated method were the most significant factors, and molding pressure and fiber content were the least significant factors to the impact strength of the jute-polyurethane composites.

In this paper, temporary cavity is taken as the research object, and the main influence factors effecting temporary cavity are investigated.
Because the dynamic mechanical properties of living tissue were very complex, the study on the temporary cavity was very difficult [5].
In this paper, the influence factors effecting temporary cavity are obtained by analyzing the expansion process of temporary cavity.
From the above analyses, we can get some influencing factors impacting temporary cavity as follows: a0, ρp, v, c0, ρt, E, σD, pa, ζ, ψ.
Conclusions In this paper, the wounding effect in gelatin is described in detail on the base of classical mechanics, and some important influencing factors affecting the temporary cavity diameter are obtained.

And the property of recycled coarse aggregate after cleaning has the performance of guaranteeing the quality by using.
2 ~ 3 times of cleaning in order to ensure construction quality before using, so the test carry out a purge of recycled coarse aggregate and the determinate basic properties of the aggregate after cleaning. 3.
the workability of concrete, which directly affect the quality of the project.
How much of the needle flake particle content mainly related to the aggregate physical properties and the choice of processing machinery and production technology.
Consider choose native concrete experiment, and contrast to test data of apparent density, concluded: the main factors which affect the apparent density of recycled coarse aggregate are cement mortar content and impurity. 3.8 Cleaning effect on the basic performance of recycled coarse aggregate The three types of recycled coarse aggregate are washed three times, and the determination the change of its water absorption, fine powder content and crushed indicators, the test results are shown in Table 2, Table 3 and Table 4.

Due to the effect of these processes, gradual disintegration of the hardened cement with consequent loss of mechanical properties occurs.
This rate is dependent upon several factors, their effect is firstly due to the properties of the concrete and the character of the structure, secondly to the type and conditions of the aggressive environment influence [5].
As factors influencing significantly the rate of corrosion, firstly composition, properties and structure of the hardened cement paste in concrete, a total porosity of concrete and its character, size, state, and properties of the contact surface of the concrete with aggressive solution can be noted [6].
Even permeability of surrounding environment, the rate of the solution movements, the pressure of the affecting solution, its temperature and the interaction of some physical and mechanical factors also significantly apply [7].
Basic Physical Properties.  

Therefore, for more application of UHPC in China, research on mechanical properties of the UHPC is needed and can be regard as the first step of research for improving fire resistance of UHPC.
Determination of mechanical properties Tests for mechanical properties including compressive strength, splitting tensile strength, flexural strength and static elastic modulus were conducted according to GB/T 50081-2002 of China, i.e.
Standard for test method of mechanical properties on ordinary concrete. 100 mm cube specimens were prepared for compressive strength test.
All the mechanical properties of the UHPC were investigated at four ages, i.e. 3 days (d), 7 d, 28 d and 56 d.
The influencing factors on compressive strength, including water to binder ratio (W/B) and different types of mineral admixtures as well as fluidity of fresh concrete 0 minute after mixing were determined.

Factors that affected of connection laterally strength is bamboo thickness, bolt diameter and spesific gravity.
Many factors were affected of mechanical properties of bamboo such species and age, topography conditioned, moisture content, form and size of specimen, node or internodes, position along the culms (bottom, middle, top), testing speed and short or long-term loading [3].
Factors were affected of connection strength such species and age of bamboo, topography condition, moisture content, node and internodes, height position (bottom, middle and top).
Height positions (bottom, middle and top) have mechanical properties of differently.
Factors affected of connection strength are connection geometric shape such bamboo wall thickness, bolt diameters, bamboo component number and specific gravity.