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Influence of manufactured sand grading to workability of concrete Fuhai Li 1,a, Jinliang Gao2,b, Guhua Li 1,c, Chuan Yu1,c 1School of Civil Engineering, Southwest Jiaotong University, Chengdu 610031,China 2Sichuan Banan Expressway Company Limited, Chengdu 610031,China aemail:lifuhai2007@home.swjtu.edu.cn,bemail:290927325@qq.com, cemail:459139277@qq.com Keywords: Manufactured sand, concrete, grading, workability Abstract.
In order to apply manufactured sand in the field of concrete engineering, the workability of concrete influenced by manufactured sand grading is studied.
High water cement ratio and low intensity workability of concrete with manufactured sand is more difficult to control in the realistic engineering. 0.5 water cement ratio is selected to carry out the workability experiment.
The grading with stretch shapes “S” form is much better when manufactured sand is applied in the concrete engineering.
Civil engineering materials.

Numerical Simulation of Interfacial Bonding Degradation of Composites under Two-stage Loading Yanhua CHEN 1,a , Qingjie ZHU 1,b 1 College of Civil and Architectural Engineering, Hebei Polytechnic University, Tangshan, China, 063009 a cyh427@163.com, b qjzhu@sohu.com Key Words: Fiber-reinforced composite (FRC), two-stage loading, interfacial fatigue, bonding degradation, crack growth, debonding Abstract.
Present study is helpful for analyzing the fatigue damage of engineering materials and structures.
Introduction Composite has been used widely in many fields because of its predominant characteristic, such as aeronautics, civil engineering and so on.
Vol.65(7-8):1203-1210(2005) [9] Y.H.Chen, Z.F.Shi, Q.J.Zhu: Engineering Mechanics Vol.21(1):196-201(2004) [10] L.M.
Ye, et al: Key Engineering MaterialsVols.104-107: 549-600(1995) [11] L.M.

Influence of Metashale as Cement Replacement on the Hygric Transport Properties of Concrete KOŇÁKOVÁ Dana1,a *, HOVORKOVÁ Veronika1,b,VEJMELKOVÁ Eva1,c, KEPPERT Martin1,d and ČERNÝ Robert1,e 1Czech Technical University in Prague, Faculty of Civil Engineering, Department of Materials Engineering and Chemistry, Thákurova 7, 166 29 Prague 6, Czech Republic adana.konakova@fsv.cvut.cz, bveronika.hovorkova@fsv.cvut.cz, ceva.vejmelkova@fsv.cvut.cz, dmartin.keppert@fsv.cvut.cz, ecernyr@fsv.cvut.cz Keywords: Concrete, composite, metashale, basic physical properties, mechanical strength, water vapour diffusion resistance factor, apparent moisture diffusivity.
Introduction Concrete is generally still one of the most used materials in the civil engineering industry.
Material Water absorption coefficient [kg m-2 s-1/2] Apparent moisture diffusivity [m2s-1] CS-Ref 0.013 4.0E-08 CS-20 0.011 7.8E-08 CS-40 0.013 6.3E-08 CS-60 0.021 4.4E-08 Summary Cement is one of the most energy demanding material of civil engineering; therefore many attempts of researchers are nowadays focused on development of so called supplementary cementitious materials.
[8] Máca, P., Jandeková, D., Sovják, R., Konvalinka, P.: Increasing concrete resistance to deicing chemicals by using metakaolin; Life-Cycle and Sustainability of Civil Infrastructure Systems, CRC Press/Balkema, Leiden, (2012) 1348-1352

Excitation Source Function of Ground Vibration from Urban Railway Traffic by an Inversion Procedure XiaXin Tao1,a, Xin Zheng1,2,b, and FuTong Wang1,3,c 1 School of Civil Engineering, Harbin Institute of Technology, Harbin 150090, China 2 Department of Civil Engineering, Heilongjiang Bayi Agricultural University, Daqing 163319, China 3 School of Architecture and Civil Engineering, Heilongjiang University, Harbin 150001, China a taoxiaxin@yahoo.com.cn, b zx07@yahoo.cn, c wang-futong@126.com Keywords: ground vibration, excitation source, inversion, urban rail traffic Abstract.
Bahrekazemi, Train induced ground vibration and its prediction, Division of Soil and Rock Mechanics, Dept. of Civil and Architectural Engineering, Stockholm Royal Institute of Technology, (2004) [2] X.

Harries1, e 1 Dept. of Civil and Environmental Engineering, University of Pittsburgh, 949 Benedum Hall, Pittsburgh, PA 15261. 2 Dept. of Civil and Environmental Engineering, Carnegie Mellon University, 5000 Forbes Avenue, Pittsburgh, PA, USA 3 Dept. of Civil and Environmental Engr., Korea Advanced Institute of Science and Technology, Daejeon, 305-701, Korea a mstaxmarcello@yahoo.it , bddutta@cmu.edu , chsohn@cmu.edu, d pir3@pitt.edu, e kharries@pitt.edu Keywords: Ultrasonic guided waves, nonlinear acoustics, feature extraction, Discrete Wavelet Transform.
Introduction Steel structures are ubiquitous in mechanical, industrial and civil engineering systems.
The third and fourth authors acknowledge the support of the Korea Science and Engineering Foundation (M20703000015-07N0300-01510) and Korea Research Foundation (D00462).

Acknowledgement Project supported by the National Natural Science Foundation of China (Grant No. 61179044) and the Key Scientific Research Project of Civil Aviation University of China (Grant No.
CAUC2009ZD0102) References [1] Lan Moir, and Allan Seabridge, Civil aviation electronic systems, Beijing: Aviation Industry Press, 2009
[2] Wang Yong, and Liang Defang, Civil aircraft fly-by-wire flight control system Preliminary Study, J.
[3] Lan Moir, and Allan Seabridge, Civil Avionics Systems, England: John Wiley & Sons Ltd, 2003
Information and Electronic Engineering, 8 (2010) 594-597

Water The water used for the pastes, mortars and concretes was from the mains water supply of the São Paulo Energy Company’s (Cesp) Civil Engineering Laboratory in Ilha Solteira, São Paulo, Brazil.
Hoppe, Carbonatação em concreto com cinza de casca de arroz sem moagem, Dissertação (Mestrado) - Curso de Pós-Graduação em Engenharia Civil, Universidade Federal de Santa Maria, Santa Maria, 2008
Tese (Doutorado) - Faculdade de Tecnologia, Departamento de Engenharia Civil e Ambiental, Universidade de Brasília, Brasília, 2004
Tese (Doutorado) - Escola de Engenharia, Programa de pós-graduação em Engenharia Civil, Universidade Federal do Rio Grande do Sul, Porto Alegre, 2006
Dissertação (Mestrado) - Escola de Engenharia, Programa de pós-graduação em Engenharia Civil, Universidade Federal do Rio Grande do Sul, Porto Alegre, 1996.

A computational grid was coined in the mid-1990s to denote a (then) proposed distributed computing infrastructure for advanced science and engineering [4].
Second, mass data collected via the mobile intelligent terminal are mainly used by the governmental agencies to simplify the management process and clear the management objectives, which is little involved in the interaction between G2C (Government to Civil Society), G2B (Government to Business) and G2G (Government to Government).
The module is composed of the business management system, information resource service system and the government to civil society interactive system.
Apart from the common communication ways like the www and wap, it also includes the direct participation of the public and enterprise, civil forum, telephone, fax, e-mail, SMS and letter.
The government to civil society interactive system serves both the platform for government policy publication and acquisition of public opinion, and the channel for the public to reflect opinion, evaluate policy and supervise the government.

Behavior of RC Beam-Column Joints Using High-Strength Concrete and Engineered Cementitious Composite Alam Gir1,a, Muhammad Fahim1,b, Abdul Ghani2,c* 1University of Engineering and Technology Peshawar Pakistan. 2School of Civil Engineering and Hydraulic, Tongji University, Shanghai, China aalamgir.civ@uetpeshawar.edu.pk, bdrmfahim@uetpeshawar.edu.pk, c*Ghania866@gmail.com Keywords: Joint Reinforcement Congestion, Beam-Column Joints, Engineered Cementitious Composites, High Strength Concrete.
ECC demonstrated its ability to improve seismic performance and reduce congestion, an essential issue in structural engineering, by meeting shear stress needs in joints without transverse reinforcement. 1.
However, few studies have investigated reinforcing beam-column junctions with high-ductility materials such as engineered cementitious composites and high-strength concrete.
Asce, “Development of Multiscale Fiber-Reinforced Engineered Cementitious Composites with PVA Fiber and CaCO 3 Whisker,” vol. 30, no. 6, pp. 1–9, 2018, doi: 10.1061/(ASCE)MT.1943-5533.0002305
Hussain, “An Economical Engineered Cementitious Composite (ECC) prepared with fi ne quarry sand and a nominal amount of PVA fi bers,” Cem.

Some Primary and Secondary School Building of Masonry Structure Seismic Reinforcement of Key Technical Discussion Wen Huang1, a, Yuhan Du2,b and Fuyan Zheng3,c 1Library of East China Jiao tong University, Jiangxi Nanchang 330013 PRC 2College of Civil Engineering of Nanchang University, Jiangxi Nanchang 330002 PRC 3College of Civil Engineering of East China Jiao tong University, Jiangxi Nanchang 330013 PRC awwen_cn@aliyun.com, bxhl5526@163.com, czhengfuyan369@163.com Keywords: Primary and secondary school building; Library; Masonry structure; Seismic reinforcement; Mesh reinforcement cement mortar Abstract.
This technology could provide reference for other similar seismic strengthening engineering.
Systematically discussed the key technology of seismic reinforcement of the buildings; just as reinforcement technology of steel-mesh cement mortar, cantilevered beam end plus an additional reinforced concrete column, stairwell adding additional staircase column, floor crack treatment, which will provide reference for seismic reinforcement of similar engineering.