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The concentration of paste Slurry is high, need less water, which can improve the strength of the backfill body and reduce the usage of cementations materials, almost 2.5%-3.0 % is enough, reduced the cost; realized the resource utilization of solid waste, and solved the problem of solid waste pollution to environmental.
Journal of China University of Mining press (1991) (In Chinese)
China Safety Science Journal Vol.15 No.1 (2005)(inchinese)
Journal of China University of Mining & Technology Vol.23 No.4 (2003) (in chinese)
Journal of Liaoning Technical University(Natural Science) Vol.20 No.2 (2001) (in chinese)

Among these materials, the transition metal carbides present excellent behaviors against the wear and corrosion [5-7].
Chromium carbides which belong to this set of materials have then better mechanical, chemical and thermal behaviors.
Experimental Procedure Materials and coating deposition.
Kempster; Characteristics of Chromium Carbide Layers Produced on Martensitic Stainless Steel Using Different Chemical Vapour Deposition (CVD) Techniques; Materials Science Forum, Vols 102-104 (1992) 543-552 [19] A.
Smolik; Chromium carbide coatings obtained by the hybrid PVD methods; Journal of Achievements of Materials and Manufacturing Engineering 43(2010) 145-152 [21] Y.

Journal of biomedical materials research (2000) 52(2) 395-403
Journal of the mechanical behavior of biomedical materials (2011) 4(8) 1864-1872
Materials Science & Engineering A 563 (2013) 78-85
Materials Transactions (2009) 50(12) 2726-2730
Materials Transactions (2006) 47 (3) 505-512

International Journal of Cast Metals Research.
Sharma, Effect of Cooling Rate on DAS and UTS of Cast Iron, Journal of Material Science 33, (1998), 23-28
Melo, Permeability of Interdendritic Channels, Materials Science and Eng., A 391, (2005), 151-158
Svensson, Fracture Mechanics of Gray Cast Iron, Solidification and Gravity V, Trans Tech Publications, Switzerland, Materials Science Forum 649, (2010), 517-522
Elmquist: Solidification Study of Gray Cast Iron in a Resistance Furnace, Key Engineering Materials Vol. 457. pp 108-113.

Several researches aimed to develop alternative materials for reducing the non degradable waste.
The renewable materials -- Biodegradable plastics, and natural fiber based material -- had been studied for replacing conventional plastics.
The coating materials focused in this decade was biodegradable materials.
Experimental Material.
Journal of Valailonkorn research and development in royal patronage.

J. of Applied Polymer Science.
Journal of Materials Processing Technology. 200, 331-338
Journal of Polymers and the Environment.
J. of Composite Materials 45 (11) (2010) 1201-1207 [11] Rosa, D.
J. of Material Science. 42 (2007) 551-557

Introduction Deformation occurred in metal materials when loaded, the elastic deformation forms by the change of interatomic distance [1].
To metal materials, elastic deformation depends on the change of interatomic distance, and plastic deformation depends on crystal dislocation motion.
Chen: Strength of Engineering Materials (HuaZhong University of Science and Technology Press, China 2008)
Wang: Elastic Theory (Science Press, China 1979)
Zhao: Journal of Guangxi University Vol.34 (2009), p. 36 (In Chinese)

Both the materials are assumed to be homogeneous and isotropic.
Table 4 Material properties of the dam No.
Using the classical approach, which based on strength of materials, the maximum and minimum vertical pressures exerted on the base of the dam are calculated.
Peng: International Journal of Rock Mechanics & Mining Sciences.
(in Chinese) [9] Weiya Xu, Tao Jiang: Chinese Journal of Rock Mechanics and Engineering.

Due to the influence of multi-spectral factors, physical and chemical properties and mechanical properties of materials generated irreversible aging [3].
Introduction to Polymer Materials.
Vol.51-53 (2003) (in chinese) [4] Wang X.J., Wen Q.Z., Zhu J.H., Techniques of characterization aging polymer materials.
Journal of Applied Polymer Science.
Advanced Materials Research.

Materials and methods 2.1 Simulated dyeing wastewater Five dyes includes Reactive Black 5, Direct Red 28, Direct Yellow 12, Reactive Blue 19 and Reactive blue 21 purchased from a chemical factory in Hubei, China were used in this experiment with the concentration of 50 mg/L (each dye of 10 mg/L).
Chemical Engineering Journal.
Journal of biotechnology.
Environmental Engineering Science.
[12] Wyszecki G, Stiles WS: Color science (Wiley New York; 1982)