Search results

Behaviour of Conventional Concrete Treated with Robo Sand and Iron Shavings D Satyanarayana1,a and R Padmapriya2,b* 1,2Department of Civil Engineering, Sathyabama Institute of Science and Technology, Chennai -600 119, India.
Email: asatyanarayanaduttada.civil@gmail.com and bpadmapriyar_77@yahoo.com *Corresponding author: padmapriyar_77@yahoo.com Keywords: Iron shavings, M-sand, Compressive strength,Split tensile strength, flexural strength Abstract: This paper deals with impact of M-sand utilization rather than ordinary fine total (N-Sand) and iron shavings as far as volume of cement to improve the elastic nature of the matrix material.
Alzaed “Effect of Iron Filings in Concrete Compression and Tensile Strength” International Journal of Recent Development in Engineering and Technology (ISSN 2347 - 6435) Volume 3, Issue 4, October 2014
[15] Manjunatha M “Durability Studies on Concrete by Replacing Natural Sand with M-Sand A Review”, International Journal of Emerging Technology and Advanced Engineering VOL.6, ISSN 2250-2459.

Sai Srujan Reddy 2,b 1Associate Professor, Dept. of Civil Engg.
Vasavi College of Engineering, Hyderabad, India 2 UG student, Dept. of Civil Engg.
Vasavi College of Engineering, Hyderabad, India a c_mohanlal@yahoo.com, b srujanreddy94@gmail.com Keywords: Ultra Fine Slag, steel fibre, high strength concrete, mechanical properties.
Acknowledgements I would like to thank the Principal and the management of the Vasavi College of Engineering, Hyderabad for giving an opportunity to conduct the research work in the college and to register and present the work at the International conference.

Correlation between Parameters of Acoustic Emission and Fracture Characteristics Obtained from Three-point Bending Test TOPOLÁŘ Libor1, a * and PAZDERA Luboš1,b 1Brno University of Technology, Faculty of Civil Engineering, Veveří 331/95, Brno 602 00, Czech Republic atopolar.l@fce.vutbr.cz, bpazdera.l@fce.vutbr.cz Keywords: Acoustic Emission Method, Fracture Test, Pearson product-moment correlation coefficient, Correlation, Three-point bending Abstract.
Fracture tests were carried out using a Heckert FPZ 10/1 testing machine within the range of 0–400 N in the laboratory at the Institute of Building Testing, Faculty of Civil Engineering, Brno University of Technology.
In 10th International Conference of the Slovenian Society for Non-Destructive Testing: Application of Contemporary Non-Destructive Testing in Engineering.

Coupling of the Cylindrical Shell with Side Elements SURIANINOV Mykola1,a*, NEUTOV Stepan1,b, Burdeinii Yurii1,с, METLIZKIY Vitalii1,d 1Odesa State Academy of Civil Engineering and Architecture, Didrikhsona str., 4, Odesa, Ukraine, 65029 аsng@ogasa.org.ua, bneutov.stepan@ogasa.org.ua, cyura.porosyuk97@gmail.com, dmetlizkiy98@gmail.com Keywords: cylindrical shell, side element, analytical method, boundary conditions, semi-momentary state Abstract.
The calculation scheme of the shell and the shape of the side elements correspond to the structures made of reinforced concrete and fiber concrete experimentally investigated at the Department of Structural Mechanics of the Odessa State Academy of Civil Engineering and Architecture. 6 Research Results Consider a symmetric shell with equally supported longitudinal edges (Fig. 1).
Obshchaia teoryia obolochek y ee prylozhenyia v tekhnyke [General theory of shells and its applications in engineering].

Determination of Thermal Conductivity on Lightweight Concretes BODNÁROVÁ Lenka1, a, HROUDOVÁ Jitka1,b*, ZACH Jiří1,c and SOVOVÁ Kateřina1,d 1Brno University of Technology, Faculty of Civil Engineering, Institute of Technology of Building Materials and Components, Veveří 331/95, 602 00 Brno, Czech Republic abodnarova.l@fce.vutbr.cz, bhroudova.j@fce.vutbr.cz, czach.j@fce.vutbr.cz, d SovovaK@study.fce.vutbr.cz Keywords: Concrete, lightweight aggregate, thermal conductivity, fire safety, cement, fibres.
At present, tunnels, which are demanding to construct from an engineering perspective, are increasingly being used in the construction of new roads and railway lines.
Brno University of Technology, Faculty of Civil Engineering, Institute of Technology of Building Materials and Components has been developing the optimum concrete recipe for the construction of tunnels for many years.

The Wireless Modular Monitoring System (WMMS) was presented at the conference on Proceedings of Advances in Structural Engineering and Mechanics in Pusan, Korea 2002 [4].
[7] Hung-Chi Chung, Tomoyuki Enomoto, Kenneth Loh, Masanobu Shinozuka: Real Time Visualization of Structural Response through Wireless Communication using MEMS SensorsReal Time Visualization of Structural Response through Wireless Communication using MEMS Sensors, Civil and Environmental Engineering, University of California, Irvine CA
Feng, Pai Chou, Yangbo Chen, Chulsung Park: MEMS-Based Wireless Real-Time Health Monitoring of Bridges, Civil and Environmental Engineering, University of California, Irvine CA.

Influence of nano-SiO2 and nano-CaCO3 on the mechanical properties of concrete with different strength grades Miaozhou Huanga, Tao Mengb,*, Xiaoqian Qianc, Jinjian Zhangd College of Civil Engineering and Architecture,Zhejiang University,Hangzhou310058,China ahuangmiaozhou@163.com, btaomeng@zju.edu.cn, cqianxq1@zju.edu.cn, dzhjj@zju.edu.cn Keywords: concrete; nano-SiO2; nano-CaCO3; mechanical property; microstructure Abstract: The flow ability, mechanical properties and microstructure of concrete with different strength grades affected by nano-SiO2 and nano-CaCO3 was studied.
(in Chinese) [3] Byung Wan Jo,Chang Hyun Kim,Jae Hoon Lim, Journal of Civil Engineering, 2007, 11(1): 37-42
[4] Fu Mingfu,Xiong Jingang,Song Guquan, Engineering Mechanics, 2004, 1: 48-51.

A review on investigation progress and applications of their phase transition temperature control and adjustment was made in this paper, which is of important reference and practical value for understanding and predominating the investigation and engineering applications on their phase transition temperature control and adjustment.
As thermal energy storage technique is widely used as an important means to harmonize supply and demand contradiction, improve energy transformation efficiency during the process of thermal energy exploitation and utilizations, and it has been applied in the fields such as agricultural greenhouses, "peak load shifting" of electric power, recovery and utilizations of industrial afterheat or waste heat, heating in industrial and civil buildings, air conditioning etc, and has gradually become great important research field in the world[1, 2].
However, this means not only needs to have quite good applicability, but also their mixing proportion needs to be confirmed through many experiments, in this way the investigative cost and devotion are extremely high, and it is difficult to realize in the practical engineering applications.
Vol.32 (2007), p.1206 [2] X.Q.Zhu, Y.F.Yang, S.L.Li, et al: Chemical Engineering (in Chinese).
Energy Conversion and Management, Vol.46 (2005), p.1523 [9] H.L.Wang, Z.R.Zou, H.W.Chen, et al: Journal of Agricultural Engineering (in Chinese), Vol. 24 (2008), p.304 [10] B.Zalba, J.M.Marín, L.F.Cabeza, et al: Applied Thermal Engineering, Vol. 23 (2003), p251 [11] H.Ye, J.Wang, S.Y.Zhuang, et al: Acta Energiae Solaris Sinica , Vol. 25(2004), p.651 [12] A.Laouadi and M.Lacroix: International Journal of Heat Mass Transfer, Vol.42 (1999), p.275 [13] K.P.Liu, Y.P.Zhang, X.Xu, et al: Energy and Buildings (in Chinese), Vol.37 (2005), p.215 [14] D.Zhang, M.M.Zhou, K.R.Wu, et al: Journal of Building Materials (in Chinese), Vol.6 (2003), p.374 [15] Y.S.Yang, F.Q.Dong and S.Y.Gan.

Research on the Formula of the Height of Bearing Push-extend Under-reamed of the Push-extend Multi-under-reamed Pile Yongmei Qian1,a , Xiaolong liu1,b and Ruozhu Wang1,c 1Jilin Institute of Architecture and Civil Engineering, Changchun, China, a654675316@qq.com, bliuxiaolong@163.com, c wangruozhu@126.com Keywords: the Push-extend Multi-under-reamed Concrete Pile, failure principle, theory of shear resistance, the height of bearing push-extend reamed Abstract.
As there is no definite calculation formula of the height of bearing push-extend reamed of the Push-extend Multi-under-reamed Concrete Pile at present, in the paper, according to the theoretical analysis and the experimental achievements on the failure principle of the soil of the Push-extend Multi-under-reamed Concrete Pile, it is made that using the theory of shear resistance to carry on the analysis, deduce the check formula of the height of bearing push-extend reamed of the Push-extend Multi-under-reamed Concrete Pile, and it is put forward that the reliable theoretical basis of the Push-extend Multi-under-reamed Concrete Pour Pile foundation design for practical engineering.
Conclusion According to theory of shear resistance, it must make punching force caused by reaction of subsoil outside punching section no more than punching ability of concrete at punching section, then it can be ensured that the bearing push-extend reamed itself do not produce punch failure, according to this it can be derived that the check formula which ensure the height of the bearing push-extend reamed, it means the height of the bearing push-extend reamed h should meet the formula as follow: For the bearing push-extend reamed are single slope, For the bearing push-extend reamed are single slope, In short, through the study of this paper, it is determined that the check formula of the height of bearing push-extend reamed and improves research results of the design of the bearing of the Push-extend Multi-under-reamed Pile, and it is put forward that the theoretical basis of engineering practice of the Push-extend Multi-under-reamed Concrete Pour Pile Acknowledgments

Research on Calculation of Equivalent Damping Ratio of Electrical Transmission Tower-Line System with Viscoelastic Dampers Cong Zeng a, Dongxue Hao b, Liqun Hou c Institute of Architectural Engineering, Northeast Dianli University, Jilin 132012,China a zc_1113@126.com, b haodongxue2005@126.com, c hlq_work@sina.com Keywords: Viscoelastic damper, Additional equivalent damping ratio, Electrical transmission tower-line system Abstract: Installing viscoelastic dampers on electrical transmission tower will significantly reduce the wind-induced vibration response of electrical transmission tower-line system.
The control of transmission tower vibration has become an important research topic in civil engineering.
Through a practical engineering project, the responses with viscous damper model and the one with additional damping ratio model were compared under earth quake time-hi-story, which verified that the results of the method of calculation for equivalent damping ratio satisfy the engineering precision[3].
References [1] LI Li,YIN Peng.The research on wind-induced vibration control for big-span electrical transmission tower-line system[J].ENGINEERING MECHANICS,2008,25(2):213-229
[4] WU Cong-xiao,ZHOU Yun,DENG Xue-song.Experimental study on steel-lead viscoelastic damper[J].ENGINEERING MECHANICS,2012,29 (3):150-155