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Non-Destructive Schmidt Rebound Hammer Evaluation of the Degradation of Concrete Exposed to Elevated Temperatures ROZSYPALOVÁ Iva1,a*, DANĚK Petr1,b, SACHR Jiří1,c and KAREL Ondřej1,d 1Brno University of Technology, Faculty of Civil Engineering, Veveří 331/95, Brno, Czech Republic aiva.rozsypalova@vutbr.cz, bpetr.danek@vutbr.cz, cjiri.sachr@vutbr.cz, dkarel.ondrej@vutbr.cz Keywords: Concrete, elevated temperature, rebound hammer, Original Schmidt N, SilverSchmidt L, compressive strength.
Thermal loading was carried out in the fire furnace intended for a research of the behaviour of materials at elevated temperatures in the AdMaS Research centre of the Faculty of Civil Engineering, BUT in Brno.
[10] Rozsypalová, I.; Daněk, P.; Šimonová, H.; Keršner, Z., Strength characteristics of concrete exposed to the elevated temperatures according to the temperature- time curve ISO 834, MATEC Web of Conferences: Dynamics of Civil Engineering and Transport Structures and Wind Engineering – DYN-WIND’ 2017.

Experimental research on mechanical behavior of carbon fiber reinforced concrete under different length of carbon fiber Wang Xiaochu 1, a, Zhang Jianpeng 2, b LiuHongtao 2, c 1 The Key Laboratory of Geoenvironmental Engineering, Liaoning, Shenyang, 110044, China 2 Shenyang University, Liaoning, Shenyang, 110044, China azhoule1978@126.com(corresponding author), bzjpsdwf@163.com, cliuht0312@163.com Keywords: CFRC; optimum length; compressive strength; deformation; strain.
Introduction Carbon fiber is applied widely in civil engineering, but there are also some obstacles, such as: the cost of carbon fiber and so on, but the carbon fiber integrated better [1], good mechanical properties, can compensate for the lack of ordinary concrete, and solve the problem that other materials can not in many occasions, therefore, favored by many researchers in recent years.
References [1] Shao Jinsong, Liu Weiqing .Application of the carbon fiber in civil engineering [J].
Method of Surface Treatment of Carbon Fiber and Its Evaluation[C].2012 International Concrete on Electric Technology and Civil Engineering., 850-853

Gabdullinae Department of Civil Engineering and Applied Ecology, St.Petersburg Polytechnic University, Polytechnicheskaya str. 29, 195251, St.
For this purpose, experimental studies were carried out on a laboratory bench [14…17], established in the scientific and educational center “Processing and recycling of waste and of technogenic formations” (Department of Civil Engineering and Applied Ecology, Institute of Civil Engineering, St.Petersburg Polytechnic University) (Fig. 1).
Engineering and Environment Book.

Research on Prestressed Concrete Cable-beam Structure System Xinying Xie a, Xinsheng Yin b Jilin Architectural and Civil Engineering Institute,Changchun,china ax-original@163.com, byinxinsheng06@eyou.com Keywords: Prestressed concrete structure; cable-beam; finite element method; model test; research Abstract.
The use of the cable can add the length of span.It can be seen from test that the bearing capacity is very strong when it takes prestressed concrete cable beam structure system,its gravity is lighter than reinforced concrete in this kind of structure system and its cost is lower with shorter time and bigger span,so it is more suitable for practical engineering.
Acknowledgements This work was financially supported by the National Natural Science Foundation of China (51178205) , Youth Science and Technology Development Fund of Jilin Architectural and Civil Engineering Institute, Doctoral Scientific Research Fund of Jilin Architectural and Civil Engineering Institute and Jilin province science and technology development project(201201104).

Effect of Filled-concrete Height on Ultimate Strength and Ductility of Steel Tubular Bridge Pier with Partial Filled-concrete Zhanfei Wang1, a, Quan Wu1,b and Weining Sui 1,c 1School of Civil Engineering, Shenyang Jianzhu University, Shenyang, Liaoning, 110168, China awzf9522@hotmail.com, bwuquan680@163.com, cswnwzf19790627@ hotmail.com Keywords: Bridge pier, Partial filled-concrete, Finite element method, Ultimate strength, Ductility.
(in Chinese) [2] Japan Society of Civil Engineers (1996).
Report on the Hanshin-Awaji Earthquake Disaster-Damage to Civil Engineering Structures Bridge Structure [M].
(in Japanese) [3] Ge Hanbin and Usami T. (1996), Cyclic tests of concrete-filled steel box column, Structural Engineering, ASCE, 122(10), pp. 1169-1177 [4] Iura, M., Orino, A. and Ishizawa T. (2002), Elasto-Plastic Behavior of Concrete-Filled Steel Tubular Columns,JSCE, No. 696/I-58, pp.285-298.

Analysis on Mechanical Properties of the Integral Jacking-up of an Ancient Building Tiecheng Wang1,2, a, Yuhang He1,b and Hailong Zhao1,2,c 1 School of Civil Engineering, Tianjin University, Tianjin 300072, China 2 Key Laboratory of Coast Civil Structure Safety (Tianjin University), Ministry of Education, Tianjin 300072, China awangtiecheng@eyou.com, byuhang_he@sina.cn, czhaohailong@tju.edu.cn Keywords: Ancient building, Integral jacking-up, Deformation, Stress, Finite element analysis Abstract.
Engineering Situation Structure Situation.
ANSYS Numerical Analysis of Engineering Structure[M].
ANSYS Application Example of Civil Engineering[M].

Influence of Walls and Ceiling on a Wind Flow in BLWT Tunnel HUBOVÁ Oľga1, a , KONEČNÁ Lenka2, b* and LOBOTKA Peter3, c 1,2,3 Slovak University of Technology in Bratislava, Faculty of Civil Engineering, Radlinského 11, SK-813 68 Bratislava, Slovak Republic aolga.hubova@stuba.sk, blenka.konecna@stuba.sk, cpeter.lobotka@stuba.sk Keywords: wind flow, BLWT tunnel, dynamic tests, calibration of measuring devices Abstract.
Due to its characteristics (two operating sectors with different kinds of wind flow, dimensions and technical parameters of tunnel), the tunnel can be used in various branches (civil and mechanical engineering, chemical industry, energetic industry, ecology).
[5] ASCE Manuals and Reports on Engineering Practice, no.67.
Aerospace Division of the American Society of Civil Engineers, ISBN 0-7844-0319-8, 1999, 145 p

The Experimental Study on Reinforced Concrete Short-Columns Restrained by Corroded Stirrups Qiang Li, Ditao Niu, Lei Liu School of Civil Engineering, Xi’an University of Architecture & Technology, China Xi’an 710055 Liguanqiang2005@126.com KEYWORDS: stirrups corrosion; confined concrete; the axial compression experiment Abstract：The impact of stirrup corrosion on the constraint of corroded reinforced concrete(CRC) column is an pressing problem that needs to be solved.
However, according to the engineering surveys in recent years, due to the stirrups’ small diameter and thin concrete cover, they’re often the first to be subject to corrosion when the concrete is carbonized to their surface, and the corrosion degree was often more serious than the longitudinal reinforcements[1], especially in the junctions, as there are occasions when the corrosion degree of longitudinal reinforcements reaches only 5% to 10%, while that of the stirrups are much worse, leading to broken ones in some extreme cases[2]; corrosion in concrete cracks is four times more serious than that of the longitudinal reinforcements[3].
Fundamental Research on Safety and Durability of Major Structures in Civil and Hydraulic Engineering[J].China Civil Engineering Journal,2001,34(6),1～4

Modern Electrical Measurement of Alkali Activated Slag Mortars with Increased Electrical Conductivity Lunak Miroslav1,a* and Kusak Ivo1,b 1Brno University of Technology, Faculty of Civil Engineering, Veveří 331/95, 602 00 Brno, Czech Republic alunak.m@fce.vutbr.cz, bkusak.i@fce.vutbr.cz Keywords: Electric Measurement, Alkali-Activated Slag, Building Materials, Carbon Admixtures, Dissipation Factor.
Impedance spectroscopy (IS) is a non-destructive testing (NDT) method ranking in the electrical engineering measuring method group.
At the Department of Physics, Faculty of Civil Engineering, Brno University of Technology, the IS - based measurements have been implemented using following instrumentation: Agilent 33220A generator, Agilent 54645A double-channel oscilloscope, HP 82350 PCI HP - IB Interface card, and a PC.
Acknowledgements This paper has been worked out under the project GAČR No. 16 - 02261S and under the project No.S – 16 - 2967 supported by Faculty of Civil Engineering, Brno University of Technology.

Klyuev, Fire resistant fibre reinforced vermiculite concrete with volcanic application, Magazine of Civil Engineering. 76 (4)2018 181-194
Klyuev, Fiber Gypsum Concrete Composites with Using Volcanic Tuff Sawing Waste, ARPN Journal of Engineering and Applied Sciences. 13 (8) (2018) 2935-2946
Netrebenko, High Strength Fiber Concrete for Industrial and Civil Engineering, World Applied Sciences Journal. 24 (10) (2013) 1280-1285
Vatin, Fiber concrete for the construction industry, Magazine of Civil Engineering. 84 (8) (2018) 41-47