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There are high strength material (C15 concrete), moderate strength materials (gravel&C15 concrete) and low strength materials (gravel).
Journal of Central South University (Science and Technology), 2011, 42(9), 2802-2811
Journal of Jiangsu University of science and technology(Natural Science Editon), 2011, 25, 323-325
Journal of Jilin University (Earth Science Edition), 2009, 39(3), 498-502
Journal of Central South University (Science and Technology), 2011, 42(6), 1710-1718

Introduction In modern concrete science one of the main directions is the use of composite materials [1-3].
Materials and Methods Portland cement with a normalized composition without mineral additives of the CEM I 42,5N brand was used as a binder for the production of the studied samples.
Mailyan, Composite materials – as the basis of performance in the construction and renovation of buildings and structures, Engineering journal of Don. 4-2 (2012) 162
Konovalova, Influence of the type of anchoring on the adhesion of composite reinforcement to concrete, Physics of fibrous materials: structure, properties, science-intensive technologies and materials (SMARTEX-2017). 1 (2017) 115-117
Konovalova, To the question of adhesion strenght of composite reinforcement with concrete, Physics of fibrous materials: structure, properties, science-intensive technologies and materials (SMARTEX-2016). 1-2 (2016) 124-127.

Weld pool and keyhole detection based on visual sensors in plasma arc welding Ren Wenjian 1, a, Liu Xinfeng 1,b and Gao Jinqiang1,c 1 MOE Key Lab for Liquid-Solid Structure Evolution and Materials Processing, and Institute of Materials Joining, Shandong University, Jinan 250061, China arwjsuccess@126.com, bliuxinfengabc@163.com, cjqg@sdu.edu.cn Keywords: Plasma Arc Welding, Visual Sensor, Keyhole, Weld Pool Abstract.
KOVACEVIC. in: Journal of Materials Processing Technology, 2006, 174: 127-136
Liu. in: Measurement Science and Technology, 2001, 12: 1365-1370
Ma. in: Measurement Science and Technology, 2001, 12: 1964-1975
in: Welding Journal. 2013, 92(12): 381s-389s

Introduction Recent development of processing techniques results in the improvement of toughness of ceramic materials.
Experiment Materials The composite material consisted from silicon carbide (SiC) fiber and matrix was used for the specimen.
However, the material properties at localized region was sensitive depending on the structure, it is difficult to apply the bulk material properties for the estimation of the materials removal rate.
Finnie: The Mechanism of Material Removal in the Erosive Cutting of Brittle Materials, ASME Journal of Engineering for Industry, 88B（1966）393 [2] S.
Rosenblatt: Impact damage in brittle materials in the elastic plastic response regime, Proc.

In recent years, with the rapid development of advanced manufacturing technology, the materials for cutting tool need exceptional high hardness, excellent wear resistance and better toughness than that of other materials.
Cryogenic treatment or cryoprocessing is the process of deep-freezing materials at cryogenic temperatures to enhance the mechanical and physical properties of materials being treated.
International Journal of Refractory Metals & Hard materials, 25(2007):341-344 [8] Z.H.Chen, Y.Jiang, and L.Fan,et al.
Materials Science and Engineering A, 528(2011):1735-1739 [11] Y.G.Yuan, X.X.Wang, Y.Z.Shi.
Transactions of Materials and Heat Treatment, in press.

For materials possessing granular structure, it is found that the classical theory of elasticity is inadequate to represent the complete deformation.
Gogna, Journal of the Acoustical Society of America, 97 (1995) 822-830
Tomar, Monika Garg, International Journal of Engineering Science. 43 (2005) 139-169
Tomar, International Journal of Solids and Structures. 45 (2008) 225-244
Zhang, International Journal of Thermophysics, Vol. 27 3 (2006) 970-993

Magnetic material is a kind of functional materials, whose wide applications and variations have developed through time [1].
In recent years, magnetic materials have rapidly developed and new magnetic materials have continually emerged.
Acknowledgements We gratefully acknowledge the financial support from the Science & Technological foundation of Wenzhou China (H20100008, H20110004,G20090146, G20100066) and granted by Zhejiang Provincial Top Key Discipline of New Materials and Process Engineering.
Chemical propellants and polymeric materials,2009,7(2):23-26,In Chinese
Journal of Functional Materials,2009,6(40):926-929,In Chinese

The end-face of silicon-based fiber array includes different materials, silicon (V-shaped grooves), quartz (optical fiber) and ultraviolet adhesives, as shown in Fig.1, and their hardness are different each other.
Acknowledgements This work was financially supported by the National Natural Science Foundation of China (51275534).
Tsinghua Science and Technology, 2004: 9(3): 270~273
Materials and Design 31 (2010) 4514–4521
Journal of Engineering Thermophysics, Vol. 33, No.9.

Journal of composites science, 4(2), pp. 70.
International journal of polymer science, DOI: 10.1155/2016 [11] Thakur V K, Thakur M K, Pappu A. (2017).Hybrid Polymer Composite Materials Processing.
Journal of applied polymer science, 133(11), pp.1-10
Journal of physical science, 20 (1), pp. 87-98
Journal of advanced research in materials Science, 5 (1), pp.1-9.

E-commerce system is the product of the interactive movement of natural science and social science, and the coupling of several complicated processes.
Studies In Science of Science,Vol 23 (2005), pp.253-257
Journal of Software.Vol 13 (2002), p.470-474
Journal f Applied Economics.
European Physical Journal.