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Key Laboratory of Advanced Civil Engineering Materials, Ministry of Education, Tongji University, Shanghai 201804, China; 2.
(in Chinese) [6] BUREAUL, ALLICHEA, PILVIN P, et al, Mechanical Characterization of a Styrene-butadiene Modified Mortar, Materials Science and Engineering(A). (308) 2001 233-240 [7] Li Jian, Wang Pei-ming, Wang Ru, Mechanical Properties and Bulk Density of Styrene-butadiene Copolymer Emulsion(SD622S) Modified Cement Mortar, Journal of Building Materials. 8 (2005) 705-709.

In addition, vehicle material places  extreme demands  on its stability and consistency, but the quality of engineering plastic of domestic manufacturers is instability, needing to be firstly solved.
In 2010,the numbers of civil cars in China reached 74 million, and that to be discarded as useless is about 4 million.
Acknowledgements: Author: Xiujie Wang (1977-), female, Tianjin Ninghe, PhD student of Hunan University, lecturer, research directions for vehicle engineering and automotive technology and industry development.

Dave, Parametric Studies on Compressive Strength of Geopolymer Concrete, Procedia Engineering 51 ( 2013 ) 210 – 219
Rangan, Factors influencing the compressive strength of fly ash-based geopolymer concrete, Civil Engineering Dimension 6 (2004) 88–93

.), Proc. of the First Symposium on Engineering Application of Random Function Theory and Probability, John Wiley & Sons, New York, 1963, pp. 270–388
Bezručka, The use of a Kalman Filter in geosedy and navigation, Slovak Journal of Civil Engineering, 19(2) (2011) 8 – 15

China, Phone: +86 0574-87616811, Fax: +86 0574-87616807 2Lehman Center for Transportation Research, Department of Civil & Environmental Engineering, College of Engineering and Computing, Florida International University, 10555 W.

Welding Technique for New High Speed Railway Track Key Part Hua Peng1 Chunhui Wang1 Lixin Du2 1 Civil Engineering School, Beijing Jiaotong University, 3 Shangyuan Village, Haidian District, Beijing, China 100044 2 Baotou-Shenmu Railway Track Maintenance Division, Tianjiao Road, Dongsheng District Erdos Inner Mongolia, China 017000 Keywords: “SQ” gas welding, welding, switch rail, frog Abstract: With the development of continuous welded rail (CWR) in China high speed railway, the innovative study has been carried out for the welding technique of track key part.
Beijing: Railway Engineering Journal, 2005,2(1):P47-50. ( In Chinese) [4] Yi Zhou, Study of High Speed Railway CWR Welding Technique [J], Shanghai: Shanghai Railway Technology, 2009,3:P15-17. ( In Chinese) [5] Qinghua Lu, Rail Welding Technique and Quality Control [J].

Introduction Sandwich structures are applied in various areas, ranging from civil engineering and road transport (composite trailers) to marine and aerospace applications due to the high specific strength and stiffness, corrosion-resistance, tailorability and stability [1].
The interlayer of face sheets with a thickness of 1.52 mm was Ex-situ toughened with PAEK [16-21], which is an amorphous engineering thermoplastic polyetherketone with a phenolphthalein side group.

Research on developing route of the new energy vehicle technology in China Lifang Liu1, a, Yan Jia2,band Zhuqing Wu2,c 1School of Civil Engineering, Hunan University of Science and Technology, 2Hunan Vocational College of Commerce 3Hunan Expressway Guangxin Investment Company Limited allf_hnust@yahoo.cn, b27629719@qq.com,c23578922@qq.com Keywords: New energy vehicle; Hydrogen engine vehicle; Transportation; fuel cell vehicle Abstract: In this paper, multidimensional evaluation model is made to select and analysis the new energy vehicles developing direction, namely to maturity, cost, energy resources, pollution and greenhouse gas emissions, energy efficiency and technical characteristics.
[2] The comparison in energy consumption and emissions of the transportation industry between China and typical countries[J].Energy of China2007, 29(10):19-22. [3]Tianshan Ma,Yijiang Fan.Stuady of transportation an stratergy of energy and environment in China[J].Journal of Traffic and transportation Engineering, 2008,8(3):117-119

Emergency management for sudden accidents of construction projects involves the aspects of nature, society and economy, and it is a complicated social system engineering.
In the growth progress of civil important emergency response, it can be divided into four stages by the response speed of its internal emergency resources, prevention, preparation, response and recovery.
Coordination in Complex Systems: Increasing Efficiency in Disaster Mitigation and Response.International Joural of Emergency Mamagement, 2004,2(1):62~80 [2] Bjorn Ivar Kruke, Odd Einar Olsen.Reliability-seeking networks in complex emergencies.International Journal of Emergency Management, 2005,2(4): 275~291 Julie Dugdale, Sandrine Darcy, Bernard Pavard.Engineering effective cooperation and communication: a bottom-up approach.

Literature review Projects are a group of interrelated activities to achieve the strategy of the organization [1]; and construction projects are projects that take construction engineering as carrier.
Journal of Civil Engineering and Management, 11(1): 73-82 (2005)