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Surface charge properties of aggregate materials There are two main kinds of aggregate materials used in highway engineering, which one is alkaline and another is acid.
Furthermore, acidity and basicity of aggregate materials are interrelated with the properties of surface charge, that is, if acidic aggregate materials react with water to form hydrogen ions, so the surface of materials has negative charge and solvent medium shows alkaline property.
Otherwise, alkali aggregate materials react with water to form hydroxide ions yielding positive charge on surface of aggregate materials and causing solvent medium shows alkaline property.
According to the summary of above analysis, alkaline materials is hydrophobic materials that easily react with bitumen, while acidic materials are hydrophilic which react with bitumen difficultly.
It can be seen that, from the Table 2, the heat of reaction between anionic aqueous emulsifying agent and the materials was nearly same as the heat of which water reacted on the materials.

Under the premise of the milling machine and tool parameters have been determined, the adopoted exponential formula is (1) Where CF is a coefficient which related to processing materials and cutting conditions. b1, b2 and b3 is exponent respectively.
Fig.1 effect of parameters on milling force Acknowledgements This work was financially supported by the Science and Technique Foundation of Henan province of China (No.092102210289) and Natural Science Research Program of Henan Education commission(No.2010A460019).
HInternational Journal of Machining and Machinability of Materials, Vol. 1(2006) No.3,  p. 367 - 377 [2] X.L.
Proceedings of 13th International Conference on Wear of Materials, (2001), p. 576-586 [5] JA Arsecularatne, L.C.
International Journal of Machine&Manufacture, 46(2006), p.482-491

Building the parameter model is very important because of simulation for aluminum alloy thick plate of different conditions such as different sizes, different materials.
References [1] EARLE T P, ROBINSON J S, COLVIN J J: Journal of Materials Processing Technology. 153(2004),p.330
Materials Science and Engineering A, 527(2010), p.2603
[8] Muammer Koc, John Culp, Taylan Altan: Journal of Materials Processing Technology.174(2006), p.342 [9] Ji-xie Su, Xiao-qian Li, Wei-ce Ma.
MSC.Marc redevelopment guide(Science Publish ,China 2004)

It achieves from the semi-quantitative to quantitative, from experience to science in the mix design.
On the other hand, it may cause excessive cementitious materials , waste of materials and not conducive to the durability.
Journal of the Chinese Ceramic Society, Vol.28 (2000,2), p.194-198
[5] Dengxiang Zhang,Weijun Yang.Journal of Transport Science and Engineering, Vol.24 (2008) :p.22-25 [6] Qianrong Yang, Xueli Wu ,Lingyi Zhang.
Journal of Building Materials, (2002, 2), p.186 - 189

Introduction Nonorganic/polymer composite materials have recently found wide application in many areas, especially in adsorbents for heavy metal removal[1].
Experimental Materials.The chemicals were used for synthesis of HAp powder and HAp/PAN nanocomposites such as calcium nitrate (Ca(NO3)2·4H2O, Tianjin Kermel Chemical Reagent Co.
Hazardous Materials, 152 (2008) 876-884
Journal of Colloid Interface Science, 317 (2008) 402-408
Journal of Hazardous Materials, 162 (2009) 1135-1140

However, due to instantaneity of dynamic failure, it is very complicated for the material performance change caused by dynamic impact under different strain rate and stress wave propagation in the materials[1,3].
It is so important to ensure accurately the dynamic fracture toughness of the brittle materials.
Literature [5] show that transmitted wave of quasi-brittle materials and noise signals are an order of magnitude, which lead to distortion of transmission wave.
Experimental study of dynamic mechanical properties for Quasi-brittle materials using the split Hopkinson pressure bar,2003,10(24):580-584.
International Journal of Rock Mechanics and Mining Sciences. 2000,37:983-992

Preface Current issue of journal Solid State Phenomena contains the papers contributed to the 26th International Baltic Conference Materials Engineering 2017 was held on October 26-27, 2017 in Kaunas, Lithuania.
International Baltic Conference of Engineering Materials and Tribology was initiated 27 years ago and the first conference took place in 1991 as "The first International Baltic Conference on Powder Metallurgy".
Since then, conference continues the tradition of the regular meetings held annually in one of the three Baltic States, with specific topics in each country: • Surface Engineering and Tribology in Estonia, • Biomaterials Engineering in Latvia, • Engineering Materials in Lithuania.
The Materials Engineering 2017 topics are: • Engineering materials and applications; • Advanced technologies in materials science; • Surface engineering and tribology.
The conference Materials Engineering 2017 continues the tradition of the previous regular meeting by attracting many of the best known leading scientists and specialists from almost all of the different fields of expertise covering materials engineering and tribology issues.

In the modeling of the SRC special-shaped columns, complexity arises from the irregularity of the cross sections and the model may not converge after load for the components conclude many kinds of materials as the reinforced bars and stirrups, different steel and discrete concrete.
Material Element.
Steel Material Model.
Beijing: Science Press, 2001.
Mohle, “Nonliear Uniaxial Material Model for Reinforcing Steel Bars”, Journal Of Structural Engineering, vol. 135, pp. 335-343, April 2009

China 2School of Materials Science and Engineering, China University of Mining & Technology, Xuzhou, Jiangsu 221116, China 3Jiangsu province xuzhou technician institute, Xuzhou, Jiangsu 221116, China aweifuxiang2001@163.com, byugengxi@126.com Keywords: CIVA; welding cladding; austenitic stainless steel; defect Abstract: In the paper, ultrasonic testing of austenitic stainless steel pipeline welding cladding is stimulated based on ultrasonic testing software CIVA.
Thus, in-depth understanding of acoustic beam propagation behaviors in anisotropic material and accurate prediction of echo signal received by testing system can provide important theoretical guidance for ultrasonic nondestructive assessment of the materials[5].
Acknowledgements This work was supported by " Jiangsu Key Laboratory of Large Engineering Equipment Detection and Control " (JSKLEDC201206) and China Postdoctoral Science Foundation (20110491471).
Bovik: International Journal of Solids and Structures Vol. 40 (2003), p. 3493 [3] X.
Xu: Journal of Nondestructive Evaluation Vol. 29 (2010), p. 105 [4] M.

This review paper describes the research and development for vehicle seats based on literature review of journals, technical reports and thesis.
It is further influenced by the property of the cushion material, type and nature of loading.
International journal of Industrial Ergonomics 40 (2010) 345–355; [2] Darliana mohamad, Baba md deros, Dzuraidah abdul wahab, Dian darina indah daruis and Ahmad rasdan ismail.
American journal of applied sciences 7 (7): 937-942, 2010; [3] T.c fai1, F.
Journal of engineering science and technology vol. 6, no. 3 (2011) 339 – 356; [6] Kamijo, k, Tujimura, H., Obara, H. and Katsumata, M. 1982, “Evaluation of Seating Comfort“.