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However, the release of the bound chloride is influenced by many factors which do harm to the durability such as chemical erosion and stray current, as the bounds usually are not firm, thus leading to more free chloride ions dissolved in the pore solution and participating in the corrosion process [1-2].
Chloride binding ability is affected by many factors like content of chloride ions, water-to-binder ratio and curing conditions.
It is well known that the critical factor affecting the performance and durability of a concrete structure is the pore size distribution.
Due to this variation in pore size, there is much variation in micro-structural properties, mechanical properties and corrosion behavior studies.
Newman, Factors influencing chloride-binding in concrete, Cement and Concrete Research. 20 (1990) 291-300

It has strong corrosion-resistance and good mechanical properties, which is more suitable for aerospace area and shipboard [1]. 7075 aluminum alloy is widely used in industry, and the precision and high-quality processing of small parts are very important.
In this paper, the influence of the three factors of spindle speed, feed rates and ultrasonic amplitude on the surface roughness of UAG on 7075 aluminum alloy is studied.
The mechanical properties of 7075 aluminum alloy are shown in Table 2.
Mechanical properties of materials [8].
Conclusion The influence of the three factors of spindle speed, feed rates and ultrasonic amplitude on the surface roughness of UAG on 7075 aluminum alloy is studied and the following conclusions are drawn: 1.

Also, because of its good properties of thermal conductivity, being non-magnetic and reflection ability, aluminum alloy sheets have a wide range of application in electronics and medical devices.
Tekaslan et al. have studied the factors such as sheet thickness, holding time and material that affect the spring-back through experiment [5].
The mechanical property of the material is shown as Table 1.
Table 1 Mechanical property of the work-piece Young’s Module [GPa] Tensile strength [MPa] Yield stress [MPa] Poisson’ ratio C n 72 210.8 136.9 0.3 412 0.23 0.007 Experimental Method.
International Journal of Mechanical Science 2004;46(7):1097-113

Much research has been done on pipe property changing with time or temperature.
Florida Department of Transportation initiated a study on the long-term properties of corrugated HDPE pipes with consideration of temperature effect [8–11].
In this paper, both properties of HDPE pipe were investigated with FEM method.
Background Property of Pipe.
The temperature changes of buried pipe will affect HDPE pipe property, which was described in section 2.1.

But AlON ceramics still have many shortcomings, such as relatively low mechanical properties and low-temperature decomposition, which to a great extent limited the extension of its application in industry [7, 8].
AlON SiC A 100 0 B 96 4 C 94 6 D 92 8 E 90 10 Measurement of properties.
Additionally, mechanical properties of all samples were measures on universal testing machine.
Effect of SiC content on mechanical properties of multiphase materials.
The composite could get best properties when the content of added SiC was 8%.

Eq. 2 was used to choose coded values and levels of factors involved in the design of experiments
Summary RPC is a promising building material that has a significantly improved microstructure, mechanical properties, and durability.
Effect of key mixture parameters on flow and mechanical properties of reactive powder concrete.
Investigation on Mechanical Properties of Reactive Powder Concrete under Different Curing Regimes.
Mechanical properties and spalling at elevated temperature of high performance concrete made with reactive and waste inert powders.

The S-N curves showed duplex S-N properties because of the transition of fracture origin from the specimen surface in the short life region to the subsurface in the long life one.
However, the fatigue strength, which is the most important property for structural steels, is very low in comparison with the higher static strength similar to other high strength steels.
The mechanical properties of aged specimen were 0.2% proof stress: 2065 MPa, tensile strength: 2151MPa and reduction of area: 47%.
On the other hand, residual stress affects the crack propagation, and the nearer to the specimen surface the compressive residual stress, the larger the suppression effect on the propagation of a surface crack [4].
This means that mechanical severity and resistance of material near the origin of fracture are important.

So stability problem of steep- high slopes has become a key technical problem in hydropower projects, affecting and restricting the development of hydropower resources and engineering construction [1].
Numerical analysis such as finite element method, distinct element method and DDA can simulate the influence of various factors in detail.
According to the above principles and calculation formulas, safety factors corresponding to cracks of different depths under earthquake are calculated.
Yes No No No No Results show that rock block is not overthrown by moment under 0.05g level earthquake effect in section 1-1 and 3-3 when safety factors are higher.
(3) Under rainstorm condition, water infiltrates into stress-release cracks, affecting the stability of rock mass in the low part of steep rock slope.

In SiC whisker reinforced Al matrix composite, the interface reaction significantly influences the property of the composite.
Recently, silicon carbide whiskers have attracted much more attention due to the unique combination of their excellent properties, such as high strength, high elastic modulus, low thermal expansion coefficient, low density, high oxidation resistance and chemical inertness, causing significant improvements in mechanical performance of the composites [1-3].
Compared to unreinforced aluminum alloys, silicon carbide whisker reinforced aluminum (SiCw/Al) composite satisfies the demands in strength, modulus, fatigue resistance, tribological properties and has been considered as a great potential in structural materials, aerospace and electronic industries [4,5].
Therefore, it is very substantial to understand the structure and behavior of reinforcement/matrix interface since it strongly influences the physical and mechanical properties of the composites.
There are several factors affecting the interfacial microstructure, including matrix chemistry, whisker surface chemistry, whisker morphology and thermal expansion mismatches between whisker and matrix.

The aim of the present study was to establish whether the production procedure of different polymeric and composite membranes affects their physicochemical properties.
Composite biomaterial synthesis with PLA and biocompatible and bioconnective ceramics, calcium hydroxyapatite (HAp), enabled designing of many properties of this biomaterial, foremost of the porosity and mechanical properties [11, 12].
Tensile strength measured at room temperature [19] is most frequently used as a measure of mechanical properties.
It is known that the polymer mechanical properties increase with increasing polymer molecular weight for a constant value of porosity.
Surface characteristics of hard polymers significantly influence their adhesive properties, wettability, permeability, corrosive properties and biocompatibility [23].