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Introduction Non-mine mines mean the mine that mines metal ores, radioactive ores as well as building materials, refractory materials, petroleum chemical raw materials, auxiliary materials and other non-metal minerals [1].
Journal of Safety Science and Technology, 2008, 4(3):117-121
Master Thesis from Shandong University of Science and Technology, 2009
Grey system analysis and practical calculation program, fourth ed.Wuhan: Huazhong University of Science and Technology press, 2001
Grey system theory and its application,5 ed.Beijing: Science Press, 2010

Considering the feasibility, "#40 Composite materials" was used.
The strength of the body should be increased by producing with aluminum-magnesium alloy materials. 4.
In this study, compounded materials suggested by TRIZ were used and the strength of the body was increased by producing with aluminum-magnesium alloy materials. 2.
Creativity as an Exact Science.
Gordon & Breach Science Publishers (1988)

However, the frequent use of de-icing salt causes the salt frozen erosion damage of concrete, at the same time, it induces to internal corrosion of steel bars and concrete material performance, furthermore, it will also result in the bridge structure durability degradation, shorten the service life of the bridge.
Factors influencing the frost resistance of concrete and freeze-thaw damage is very complex, as for concrete material itself factors, water cement ratio of concrete is the main factor.
Journal of Qingdao university of science and technology, 2006,27(4):30-33
Journal of shanxi architecture, 2008,34(4):297-298.

ZnO is a material that has diverse structures whose configurations are much richer than any known nano-materials including carbon nano-tubes.
With these characteristics ZnO could be one of the most important nano- materials in future research and applications.
L., Materials Today, (2004), 26-33 [3] Wang Z.
L., Journal of Physical Chemistry B, 106[49] (2002) 12653 [13] Gao, P.
Shah, Materials.

Presently, C/SiC composites are widely used as thermal protection structural materials in aero-engines and aircraft brake apparatus [2-3].
The deformation of solid materials is almost always accompanied by releases of heat [8].
AE is a suitable technique for the detection of a wide range of micro-structural failures in different materials.
The studied materials were 2D plain woven C/SiC composites with high strength carbon fibers (T-300, Toray, Japan).
Mater.Vol.19 (2004), p.871 [14] Fang Peng, Cheng Laifei and Zhang Litong: Journal of University of Science and Technology Beijing Vol.15 (2008), p.302 [15] Liu Chidong, Cheng Laifei and Luan Xingang: Mater.

Based on the existing test methods of cementitious material deformation at early age and aimed at the existing problems, this paper puts forward five kinds of technical solutions to improve the measurement method.
Measurement on chemical shrinkage usually reflects the influence of change in cementitious materials and mix proportion, especially the influence of the type of mineral admixtures, cement, chemical admixtures and water consumption on the deformation law.
Acknowledgements The work of this article was funded by National Key Technology R&D Program (2011BAE27B04) and Heilongjiang Natural Science Foundation (E201313).
Haifa: RILEMTC (2001), p.13-15 [5] Qian Tian, Wei Sun, Changwen Miao and Yaping Liu: Study on the Measurement of Autogenous Shrinkage of High Performance Concrete, volume 8 of Journal of Building materials (2005), chapter 1, p.82-89 (In Chinese) [6] Yu Zhu, Hongwei Deng and Jingsheng Zeng: Research Progress of Measuring Methods for Autogenous Shrinkage of Concrete, volume 10 of Low Temperature Architecture technology (2010), p.7-9 [7] Erika E.
[8] Qian Tian and Jensen Ole Mejlhede: Measurement with Corrugated Tubes of Early Age Autogenous Shrinkage Cement-Based Materials, volume 37 of The Journal of Chinese Ceramic Society (2009), NO. l, p. 39-45

When the height between needle and stitching material changes, this change, reflected in the image obtained, makes the position of the laser stripe vary to some degree.
Stitching material is glass-fabric with thickness 5mm using related joint stitching.
Composite materials of textile structure [M].
Science Press, Beijing, (2001)
Journal of material processing technology, 176(1-3): 111-116(2006).

Introduction Rubber concrete is mixed in waste rubber particles to instead of some aggregate.This material was studied from the nineties of last century in our country.
Ordinary concrete is the most common kind of building materials in the construction industry over the past century.
Then, when the change of temperature is relatively stable thermal conductivity λ( kJ/mh℃) (2) And thermal diffusivity α( m2/ h) is (3) According to the amount of materials used and the specific heat c bulk density ρ of each material component, we can get the relationship between thermal conductivity coefficient and rubber content as shown in table 1.
Acknowledgements This work was financially supported by ShanDong Nature Science Foundation (2008BS9025).
Journal of Building Materials. 2009.12(2): 114-117(in Chinese) [2] Eldin, N.

Microstructure and Stress Variation of Semi-solid Magnesium Alloy during Isothermal compression and Its Relationship to Thixotropy Weiwei Shan1,a , Ju Fu Jiang 1,b and Shoujing Luo 1,c 1 School of Materials Science and Engineering, Harbin Institute of Technology, Harbin, 150001, P.R.China a Swwaiww@163.com, bjiangjufu@hit.edu.cn, cluosj@hit.edu.cn Keywords: Magnesium Alloy, Thixotropy, Microstructure, Isothermal Compression Abstract: Thixotropy is the most important characteristic of semi-solid materials, and it is decided by the variation of microstructure during action of handling.
Stress-strain curves during compression can be given directly by the experimental computer, and each of curves show a peak stress in a small strain and then decrease rapidly, which originally because of the thixotropy of semisolid materials.
As the semi-solid material has such characteristics, it can flow fluently when the solid fraction is over 60 percent, and its viscosity decreased when the force is constant [2].
Semi-solid material has an original microstructure, and when force acts on it, such original microstructure can't be changed immediately but need a little more time to form new one.
True stress-true strain curves of ZK60 magnesium alloy during isothermal compression at different conditions all have a peak stress at the initial stage and then rapidly decrease, followed by decrease slowly, meanwhile, the original microstructure is broken, including forming of liquid paths and moving of solid particles, can be considered as the thixotropy of semi-solid materials. 3.

Introduction Primary defects generally exist in solid materials such as rock.
Under the action of external stress, the interiors of the solid materials may be damaged and failed caused by the possible activated internal defects.
During the fracturing and damaging process, the solid materials release strain energy and the energy propagates rapidly by means of elastic wave.
Acoustic emission character of rock materials failure during various stress states [J].
The spectrum analysis of acoustic emission signal in rock materials [J].