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Preparation of MgO- and CaO-bearing Expansive Agent Used for Cement-Based Materials Mo Liwu a, Deng Yang, Lu Anqun and Deng Min College of Materials Science and Engineering, Nanjing University of Technology, Nanjing 210009, China a andymoliwu@sohu.com Keywords: Expansive agent; MgO; CaO Abstract.
Acknowledgement Financial supports from State Key Laboratory of High Performance Civil Engineering Materials (No. 2010CEM012), “973” National Basic Research Program (No. 2009CB62310505), and Jiangsu Natural Science Fund (BK2012427) are acknowledged.

Numerical Simulation and Wind Tunnel Studies of the Wind Load on Wind Turbine Structures *Cheng-Hsin Chang1,a, Jenmu Wang 1,b, and Chii-Ming Cheng 1,c 1 Department of Civil Engineering and Wind Engineering Research Center Tamkang University, Tamsui, Taipei County, Taiwan acc527330@mail.tku.edu.tw, bwang@mail.ce.tku.edu.tw, cCMCheng@mail.tku.edu.tw Keywords: Wind load, Wind turbine, Wind tunnel, Computational Fluid Dynamics Abstract.

Study of Key Parameters in the Process of Aeolian Sand Compactibility Yingzi Yin 1, a , Yalei Wang 1,b 1Architecture and civil engineering school , Inner Mongolia University Of Science & Technology, Baoyou 014010, China ayinyingzi2005@126.com b414287459@qq.com Key Words: aeolian sand; compatibility; optimum moisture content; maximum dry density; compactness; compatibility times; lay-down thickness Abstract: The main factors affecting soil compatibility include moisture content, compaction work, soil type, grading and coarse material content etc..
Its lay-down thickness is about 30-50cm when we use vibratory roller to compact aeolian sand in practical engineering.
In practical engineering, its lay-down thickness is about 30-50cm.
Hunan University Institute of Mechanical Engineering., 2008,37-38 [3] Cao, Yuanwen., Li, Zhiyong., & Liang, Naixing.

An environmental excitation having random characteristics may be more effective and cost-efficient than other excitation means for non-destructive damage identification purpose on most of the large-scale engineering structures under operation.
Introduction Early prediction of structural damage is a crucial issue for many researchers and engineers engaged in structural maintenance and health monitoring of the aeronautical, mechanical and civil structures.
And some damage indexes based on the changes in the modal properties (parameters) of engineering structures, such as frequency shifts, changes in the mode shape and modal flexibility, have been investigated and applied to identify the damage location and its severity.

Research on in-situ Anionic Polymerization of PA6/PI Alloy Hongkai Zhao1, a, Liguang Xiao1,b and Hongjie Wang1,c 1School of Materials Science and Engineering, Jilin Architectural and Civil Engineering Institute, Changchun, Jilin, 130118, China ahkzhao003@126.com, bxlg627@163.com, cwanghongjie3721@163.com Keywords: Caprolactam, Nylon 6, Anion, Polyimide, In-situ polymerization.
The mechanical properties of modified PI nylon increases with the increase of consumption and molecular weight of polyimide, when the molecular weight is selected to be about 8000~10000 and the adding amount is 10wt%~15 wt%, the tensile strength reaches over 85MPa, the notch impact strength is increased to 19.6kJ.m-2 and the elongation at break reaches 18%, which are remarkably better than general engineering plastics.Through microscopic analysis, the molecules of polyimide does not enter crystallization phase of nylon resin, but forms compact lamellar crystals existing in nylon matrix.

Journal of Mechanical and Civil Engineering. 13, 3 (2016). pp.10
Science and Engineering,Porto Engineering Faculty, Porto, Portugal(2006).
Ocean Engineering. 1 (1968). pp.105
Science and Mechanical Engineering.
Mechanic Engineering.

Finite Element Analysis of Concrete Beams Reinforced With Fiber Reinforcing Bars Qin Xua Wei Huangb, Haozhen Wuc, Xiaoping Jiangd and Zhenzhong Zhange School of Civil.
Using nonlinear analysis and comparing numerical results with experimental results, the fiber reinforced concrete beam bending terminal numerical model constructed in this paper can simulate the entire process of internal force and deformation of fiber reinforced concrete beams, and describe cracks in the formation and extension and the failure process and failure form, which also can provide enough precision to the practical engineering and scientific research.
In conclusion, bending numerical model of fiber reinforced concrete beam can simulate internal force and the entire deformation process of fiber reinforced concrete beams, and can describe formation and extension of cracks and failure process and failure form, the precision is enough to practical engineering and scientific research.

Ultrasonic sector scanning method in the application of the accurate determination of the concrete bored pile defect position Dezhi Liu1, a,Jianmin Ren1,b, Yang Yang1,c 1School of Civil Engineering, LanzhouJiaotong University, Lanzhou,730070，China; aldz277842893@126.com, brjmin4148@sina.com, cyy20052710@163.com Keywords: Ultrasonic wave, Detection, Plane method, Sector scanning method, Defects.
Based on the engineering practice of using level measuring method and fan scanning technique combining detection methods to solve the determination on the accurate location of the defects in concrete bored piles. 1 Plane method and Sector scanning method Plane method is often used in ultrasonic detection.

Applications of Nanomaterials in Wellbore Fluids in Oil and Gas Fields Weina Di 9th Floor, North-star Times Tower, No. 8 Beichendong Road, Chaoyang District, Beijing 100101, China diwn.sripe@sinopec.com Keywords: nanomaterials; drilling fluid; cementing; wellbore fluids Abstract: The application of nanomaterials in oil and gas fields development has solved many problems and pushed forward the development of petroleum engineering technology.
Journal of Materials in Civil Engineering. 21(9):512-517.

This article focuses on the problem of imposing special (seismic) loads and on engineering methods of measuring medium resistance forces; the subject matter of the article also includes the issues of the marine pipeline safety (risk) evaluation, using the theory of runs as applied to random seismic effects.
Iavarov: Modern calculation methods of trunk pipelines, Magazine of Civil Engineering, 3 (2010) pp. 43-47