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Building material is the base of civil engineering construction, in the history of thousands of years of development, building materials also gradually change and change, and is closely related to the progress of human civilization and the development of science and technology.Green building materials has the vital significance to the construction of a conservation-oriented society and sustainable development, in accordance with China's social development.This paper introduces the importance of the development of green building materials,analyzes some factors influencing the development of green building materials in China,and discusses the development tendency of green building materials in China.
The construction of the main including planning unit, design units, engineering units, supervision units, evaluation units, property management units, and the use of the subject is the owners.

Experimental Study on Early-age Crack of RC Using TSTM Nannan Shi a, Dahai Huang b Department of Civil Engineering, Beihang University, Beijing, China a snn@dae.buaa.edu.cn, b huangdh@mails.tsinghua.edu.cn Keywords: Early-age crack; Reinforcement; Thermal stress; Temperature history; TSTM Abstract.
In hydraulic engineering, high-performance concrete with large temperature variation is usually adopted, which would cause significant thermal stress.
European Journal of Environmental and Civil Engineering, 16: 589-605 [2] Amin M N，Kim J S，Lee Y，et al. 2009.
STRUCTURAL ENGINEERING AND MECHANICS. 36(4):401-419 [4] Yang J, Hu Y, Zuo Z; Jin F, Li QB. 2012.
APPLIED THERMAL ENGINEERING., 35(3):145-156 [5] Shi JF, Xiong JM, Yu TQ. 2007.

Workability and Mechanical Properties of Concret with Different Admixtures Yunfeng Li, Mixue Han and Li Xu Shandong Provincial Key Laboratory of Civil Engineering Disaster Prevention and Mitigation (Shandong University of Science and Technology), Qingdao 266590, China hhliyunfeng@126.com Keywords: Compressive strength, Flexural strength, Workability, Admixture, Concrete Abstract.
One of the most significant activities stressed by the engineers and scientists related to concrete industry aims at a high percentage of replacement of clinker in cement with secondary raw materials, with the possibility of improvement of cement characteristics and durability of concrete.
Test results will be useful for engineering application of mineral admixture.
Vol. 16 (2009), p. 0768 [2] MUHAMMAD I A K, EMMANUEL R. in: Proceeding of International Conference on Advances in Cement Based Materials and Applications in Civil Infrastructure, edited by RIZWAN S A, GHAFFAR A, A-One Publishers (2007)

Selection model of concessionaire in PPP projects Qian WU1,a,Yanan Gao1,b 1College of Civil Engineering ,XI’AN University of Architecture and Technology,Xi'an 710055,China awqian1983@126.com,bfan87@126.com Keywords: fuzzy,analytical hierarchy process(AHP),PPP projects,concessionaire Abstract.
The main risks of PPP projects Political risks Construction risks Operational risks Legal risks Market risks Financial risks Other risks Specific risks Tax changes, The risks of confiscation or nationalisation Design changes, Engineering changes, Constructions dely Charge changes Legal changes Prices changes, The risks of supporting facitilities and services Changes in interest rates, Exchange rate risks, Inflation risks Force majeure risks All parties of PPP projects in the interests has a strong correlation.The implementation of PPP projects is a procedure in which the interest among the stakeholders conflicting,coordinating and realizing.The solution of the conflict and the consensus reached can expand the achievement of the project,which makes stakeholders to voluntarily commit resources for expected results[3].And stakeholders of PPP projects refer to the public sector and concessionaire.
[3] Zhen Hu, Hua Liu and Weixing Jin, China Civil Engineering Journal. (2011)142-143.

The Coupling Interaction in the Rankine Method for Concrete Filled Steel Tube Columns under High Temperatures Yao Yao1, a, Xin Xin Hu2,b 1 Professor, School of Mechanics, Civil Engineering and Architecture, Northwestern Polytechnical University, ShaanXi 710072, China 2 Master student, School of Mechanics, Civil Engineering and Architecture, Northwestern Polytechnical University, ShaanXi 710072, China ayaoy@nwpu.edu.cn, bxinxinhu90@gmail.com Keywords: CFS column; fire resistance; Rankine approach; shear bond; high temperature.
The object of the case study is to benchmark the accuracy of the modified Rankine approach and investigate the influence of different engineering design factors to fire resistance of CFS columns.

Static Wind Load and Gravity coupling Effect of Tall Structure Zhenyu Zhong 1, 2 1College of Civil Engineering and Architecture, Zhejiang University, Hangzhou 310058, China; 2Zhejiang Industry Polytechnic College, Shaoxing, 312000, china email:sxzzy11@163.com Keywords: tall structure, wind load, gravity second–order effect Abstract.
There are many documentations discussing about gravity second-order effect caused by seismic load while little has been done in the domain of wind engineering.
,Simplified Second-order Frame Analysis[J] Canadan Journal of Civil Engineering,1975,2(4):602-605

Study on Circular-shaped Corrugated Steel Culvert Pipe for Highway Construction Feng Yue1, a*, Jincheng Zhao1, b, Haoji He2, c, Xuejun Wen2, d 1 School of Naval Architecture, Ocean and Civil Engineering, Shanghai Jiao Tong University, Shanghai 200240, China 2 Shanghai Municipal Engineering Design and Research Institute, Shanghai 200092, China a f.yue@msn.com, b jczhao@sjtu.edu.cn, c Hehaoji@smedi.com, d wen_xj.js@smedi.com, Keywords: steel, culvert, corrugated steel culvert pipe, circular-shaped corrugated steel culvert pipe, highway, construction Abstracts.
Master Thesis, Dept. of Civil and Architectural Engineering, KTH, Stockholm, 2006.

A Fuzzy Evaluation Method of Construction Project Risk Based on Cooperation Yunli Gao 1,a, Qingchun Wang 1,b 1Department of Civil Engineering and Architecture, Dalian Nationalities University, Liaoning Dalian, PRC ayunligao@163.com, bwangqingchun@dlnu.edu.cn Keywords: Construction Project, Risk Management, Cooperation, Fuzzy Evaluation Abstract.
Journal Construction Engineering and Management, Vol.132(2006),p.217-228
China Civil Engineering Journal (In Chinese), Vol.44(2011),p.215-219 [4] Wenzhe Tang, Maoshan Qiang et al.

The Fractal Character of Corrosion Steel Surface Zhengyi Kong 1, a Shanhua Xu 2,b (1Architecture and Civil Engineering, Anhui University of Technology, Ma’anshan, 243002, Anhui, China; ) (2School of Civil Engineering, Xi'an University of Architecture and Technology, Xi'an, 710055, Shanxi, China; ) akzy2004@sohu.com bxushanhua@163.com Keywords: Steel Corrosion; The Localized Corrosion; Fractal Theory ; Surface Profile; Structure Function; Corrosion Rate Abstract: In this paper, the corrosion specimens are obtained by ways of constant temperature and humidity ,and the size of corrosion pits is detected by roughness tester.
Introduction Steel corrosion is the damage and degradation of steel in the environment (including chemical, electrochemical and physical factors), the steel corrosion to the strcture safety is serious, engineering accidents caused by corrosion occurre almost every year.

Uniform High Magnetostrictive Properties of Terfenol-D Composites Prepared by a Dry Process Xufeng Dong1, a, Min Qi1,b , Jinping Ou2,c and Xinchun Guan3,d 1 School of Materials Science and Engineering, Dalian University of Technology, Dalian, China 2School of Civil and Hydraulic Engineering, Dalian University of Technology, Dalian, China 3 School of Civil Engineering, Harbin Institute of Technology, Harbin, China adongxf@dlut.edu.cn, bminqi@dlut.edu.cn, coujinping@dlut.edu.cn, dguanxch@hit.edu.cn Keywords: Magnetostrictive composites; Terfenol-D; Dry process; Magnetostriction; Uniform Abstract: Magnetostrictive composites were usually fabricated using a wet process.