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Evaluation of Three-Point Bending Fracture Tests of Selected Concrete: Mechanical Fracture Parameters ŠIMONOVÁ HanaŠIMONOVÁ1,a, DANĚK PetrDANĚK1,b, LEHKÝ DavidLEHKÝ1,c, KERŠNER ZbyněkKERŠN1,d* and PAZDERA LubošPAZDERA1,e 1Brno University of Technology, Faculty of Civil Engineering, Veveří 331/95, 602 00 Brno, Czech Republic asimonova.h@fce.vutbr.cz, bdanek.p@fce.vutbr.cz, clehky.d@fce.vutbr.cz, dkersner.z@fce.vutbr.cz, epazdera.l@fce.vutbr.cz Keywords: Concrete, Ffracture Ttest, Tthree-point Bbending, Iidentification.
Lehký, ANN inverse analysis based on stochastic small-sample training set simulation, Engineering Application of Artificial Intelligence, 19 (2006) 7, 731–740, doi: 10.1016/j.engappai.2006.05.003
Novák, FraMePID-3PB software for material parameter identification using fracture tests and inverse analysis, Advances in Engineering Software, 72 (2014), 147–154, doi: 10.1016/j.advengsoft.2013.10.001
Alyamac, Determination of fracture parameters of concrete based on water-cement ratio, Indian Journal of Engineering & Material Sciences, 15 (2008), 14–22

Influence of Temperature-Strain Parameters of Shelters Reinforcing Materials on Increasing Properties in the Z-Direction LAUKHIN Dmytro1,a, ZIBOROV Kyrylo1,b, FEDORIACHENKO Serhii1,c and ROTT Nataliia1,d* 1Department of Engineering and Generative Design, Dnipro University of Technology, Dnipro, Ukraine ad.v.laukhiv@gmail.com, bziborov.k.a@nmu.one, cfedoriachenko.s.o@nmu.one, d*natalyrott@gmail.com Keywords: ferrite-pearlite structure, controlled rolling, Z-direction.
Determination of parameters of dynamic impact is determined by engineering calculations of detonation, deflagration and other types of detonation.
Since when using thick sheets in building structures (columns and beams of a metal frame), the metal must withstand more complex load patterns than civil construction, it was necessary to adjust the controlled rolling modes in order to obtain a structural state of the rolled metal that would not only increase its strength and performance indicators, and also ensures the necessary properties in three directions: along, across and along the thickness of the rolled product [6 – 7].
[2] Dalibor Coufal, Pavel Maňas, Martin Benda, Jan Sobotka (2019) Military Engineering Support in Operation Inherent Resolve. 2019 International Conference on Military Technologies (ICMT).
[17] Laukhin Dmytro, Pozniakov Valerii, Beketov Oleksandr, Rott Nataliia, Shchudro Anatolii (2020) Analysis of the effects of welding conditions on the formation of the structure of welded joints of low-carbon low-alloy steels, Key Engineering Materials, 844 146-154

Analysis of dynamic wind of sound barrier under high speed train ZhouShi1, a,JunliGuo1,b,WeifengSu1,c and Shuangyang Zhang1,d 1College of Civil Engineering, Southwest Jiaotong University, Chenddu, Sichuan, 610000, China azshi1979@163.com, bgjlmumian@sina.cn, csuweifeng0224@163.com,d1109833653@qq.com Keywords: High speed railway, Sound barrier, Pulsating wind pressure, Numerical calculation Abstract.The special dynamic pulsating air pressure acting on the surface of sound barrier can be aroused by passing high speed train, making sound barrier structure and components prone to destruction and other issues.
Germany the PEC + S Engineering Consulting Services Limited[3] in the Nuremberg - British Goss Dart Express line of train speed of 160 to 330 km / h under pulsating wind of the different types of sound barriers conduct most comprehensive experiment test .
[3]Germany Planning Engineering Consulting + Services Ltd.
Railway Engineering,(9):138-141, (2011),In Chinese

Brytane Institute of Engineering Materials and Biomaterials, Faculty of Mechanical Engineering, Silesian University of Technology, Konarskiego 18a, Gliwice 44-100, Poland a*wojciech.pakiela@polsl.pl; btomasz.tanski@polsl.pl; ckrzystof.labisz@polsl.pl; dkatarzyna.pakiela@polsl.pl; ezbigniew.brytan@polsl.pl Keywords: Aluminium alloy, hardness, wear resistance, laser surface treatment, composite layers Abstract: Increasingly high expectations for modern engineering, make the constantly being sought-after new processes giving traditional materials new, better features.
The most commonly used technologies that allow for obtaining new, enhanced properties of various metal alloys in the area of surface engineering include, among others laser surface treatment.
Introduction Very high and still growing requirements for engineering materials makes it necessary to find much better and advanced solutions able to meet the new demands [1-3].
Rusz, Structure and properties of AlMg alloy after combination of ECAP and post-ECAP ageing, Archives of civil and mechanical engineering, 16/3, 325-334, 2016, [14] LA Dobrzański, B Tomiczek, M Pawlyta, M Król, Aluminium AlMg1SiCu matrix composite materials reinforced with halloysite particles, Archives of Metallurgy and Materials 59/1, 335-338, 2014, [15] M.
Labisz, Microstructure and mechanical properties of high power diode laser (HPDL) treated cast aluminium alloys, Materials Science & Engineering Technology, 2014, 314-324, 2014, [26] M.

Ponthot: Finite element simulation of lubricated contact in rolling using Arbitrary Lagrangian Eulerian formulation, Computer Methods in Applied Mechanics and Engineering, Vol. 193, pp. 4323-4353 (2004) [9] R.
Ponthot: Cold Roll Forming and Metal Cutting Simulation using a 3D Arbitrary Lagrangian Eulerian Formulation, Modelling in Mechanical and Civil Engineering.
Benson: An efficient, accurate, simple ALE method for nonlinear finite element programs, Computer Methods in Applied Mechanics and Engineering, Vol. 72, pp. 305-350 (1989) [12] D.
Benson: Momentum advection on unstructured staggered quadrilateral meshes, International Journal for Numerical Methods in Engineering, Vol. 75, pp. 1549-1580 (2008) [13] J.

Efficiency air-entraining water-reducing agent in concrete Study on the freeze-thaw resistance Hang Meiyan1a, Zhang Wei2b 1．School of Architecture & Civil Engineering, Inner Mongolia University of Science & Technology, Baotou, 014010, China 2．Equipment Power Department of Baotou Steel (Group) company, Baotou, 014010, China a.hangmeiyan64@126.com,b.865265809qq.com Author introduction: Hang Meiyan (1964 -), female, senior engineer, engaged in teaching, new material research and development of new products.
The results indicate that low-strength concrete in which water-cement ratio is over 0.62 is not suitable for engineering structures environment above F100
SJ-2 concrete performance of new air-entraining agent [C] / / Durability of concrete in key projects and engineering applications.

An Experimental Study on Rotational Coriolis Force Upon Single Particle In Vertical Spiral Duct MU ZhenWei 1, a, and ZHANG ZhiYan1,b 1 College of Water Conservancy and Civil Engineering, Xinjiang Agricultural University, Urumqi, Xinjiang, China, 830052 axjmzw@163.com, bxjzzyan@sina.com Keywords: spiral duct; kinetic model of single granular; rotational Coriolis force; centrifugal force.
The deflection of linear motion object occurred to deviate from the original direction is effected by an inertial force known as Coriolis force, which confirmed by the French engineer-mathematician G.G.Coriolis in 1835 [1].
Journal of Hydraulic Engineering, vol. 38, no. 12, pp. 1409-1413, 2007
[9] TANG Yi, WU Chi-gong, ZHOU Zhu.3-D flow field in funnel sluice, Journal of Hydraulic Engineering, no. 4, pp. 55-59, 1999

Modification of Grooved Paulownia Wood Sandwich WAN Lia, LIU Weiqingb and Fang Haic Advanced Engineering Composites Research Center, Nanjing University of Technology, Nanjing, China asloman@126.com, bwqliu@njut.edu.cn, cfanghainjut@163.com Keywords: paulownia wood; sandwich; interface; energy release ratio; DCB Abstract.
Due to the high price of balsa wood, paulownia wood was proposed by Fang et al. to be used as rapid road matting in civil engineering[11].
London: Engineering Materials Advisory Services.
Analysis of fracture specimens, volume 47 of Engineering Fracture Mechanics, (1994)

Countermeasures on Environmental Pollution from Construction Changyou ZHANG1,a 1School of Civil Engineering and Architecture, Chongqing University of Science &Technology, Chongqing, P.R.
The right policy should be carried out in environmental protection and main body engineer.
The technical leader or general engineer of project department is responsible for the implement of technical management.
Environmental protection measures must be taken and special programs must be prepared for projects of a certain degree of danger in preparation of design of the construction enterprises Read those drawings before the preparation so as to understand the purpose of design; make the on-site inspection of the geological feature and neighborhood; while the preparation is in process, make it full, operational and instructive according to the characteristics and location of project; after its preparation is done, the program shall be approved by the technical leader from construction enterprises and chief supervising engineer from supervising agency before being put in use. 4.

Applying the Methods of Environmental Isotopes and Fuzzy Clustering to Study the Leakage from Embankment Zhechao Fan Department of Civil Engineering, Chongqing Three Gorges University, Chongqing, 404000, China fanzhechao@163.com Keywords: Leakage Source, Environmental Isotopes, Hydrochemistry, Fuzzy Clustering.
Table.1 Scale of the judgment matrix Scale aij mean 1 ai is the same important than aj 3 ai is moderate important than aj 5 ai is more important than aj 7 ai is intensively important than aj 9 ai is excessively important than aj 2，4，6，8 intermediate values among the above judgment reciprocal aji＝1/aij The Engineering Case There was leakage from the embankment of some embankment of Three Gorges reservoir since it was built.
The Application of Isotopes Technique in Hydraulic Engineering, pp.24~56, 1988, In Chinese
The Theory and Application of Engineering Fuzzy Sets.