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Introduction Today the requirements for heat and sound insulation materials used in the industrial and civil construction are getting much higher [1-3].
Zenitova and others Polyurethanes: synthesis, properties and application in mechanical engineering, Kazan publishing house UN-TA, Kazan, 2016
Shayakhmetova Sound-Absorbing Polyurethane Foam for the Auto Industry, Russian Engineering Research, Volume 37, Issue 4 (2017) 38-40
Shafigullin, Vibration-and noise-absorbing polymer composites used in manufacturing, Russian Engineering Research Volume 30, Issue 2 (2010) 194-196
Shafigullina, Analysis of physical and mechanical properties of polyurethane facade thermal panels used in civil construction, Academia.

Effect of Silica Fume and Synthetic Fibre Towards the Compressive Strength of Modified Crumb Rubber Cement Mortar Mohamad Raduan Bin Kabit1,a*, Syed Syabil Rahmat Syed Sarkawi2,b, MD Abdul Mannan3,c, Johnson Olufemi Adebayo4,d 1,2,3Department of Civil Engineering, Faculty of Engineering, Universiti Malaysia Sarawak. 4School of the Built Environment, Heriot-Watt University.
As a result, excessive amount of used car tires has led to disposal problems and therefore many research have been undertaken to use the material in engineering products such as cement mortar to reduce its adverse environmental impacts.
Stolyarov, Mechanical properties of synthetic fibers applied to concrete reinforcement, Magazine of Civil Engineering 80 (2018): 15–23

The Development of a New Chemically Resistant Sprayed Mixture FIGALA Petr1,a*, DROCHYTKA Rostislav1,b, ČERNÝ Rostislav1,c and DOHNÁLEK Pavel2,d 1Faculty of Civil Engineering, Brno University of Technology, Veveří 331/95, 602 00 Brno, Czech Republic 2Full BETOSAN s.r.o., Na Dolinách 28, 147 00 Praha 4, Czech Republic afigala.p@fce.vutbr.cz, bdrochytka.r@fce.vutbr.cz, ccerny.v@fce.vutbr.cz, d dohnalek.p@betosan.cz Keywords: Sprayed Mixture, Sulphates, Biogenic Sulfuric Acid, Chemical Resistance, Crystalline Waterproofing Admixture Abstract.
Experimental Testing Within this work are presented selected results of research cooperation between the Faculty of Civil Engineering, Brno University of Technology, and a renowned manufacturer of building materials.
Converting portions of the Los Angeles outfall sewer into a septic tank, Engineering News. 1900, s. 317-318
Engineering Fracture Mechanics. 2020, 240.

Optimum Design of a Parabolic Flexure Hinge Based on Compliance Closed-form Equations JunFeng Hu 1* , Pei Li1, XiangFu Cui1 1 School of Mechanical & Electrical Engineering, Jiangxi University of Science and Technology, Ganzhou, China {*hjfsuper@126.com, 272886925@qq.com, 455018131@qq.com} Keywords: Parabolic flexure hinge; Compliance; Optimization design; Closed-form equation Abstract.
In conclusion, the study on the optimization design of the parabolic flexure hinge can provide a theoretical basis for its engineering applications. 1 Introduction The flexure hinge is an alternative solution to classical rotation joints in designs that require limited rotation capability of adjoining members, monolithic manufacturing, reduced weight, zero backlash and friction, no lubrication, smooth motion or virtually-infinite resolution.
The flexure hinges are incorporated in a large number of applications, both civil and military, including translation micro-positioning stages, piezoelectric actuators and motors, high-accuracy alignment devices for optical fibers, missile-control devices, displacement amplifiers, scanning tunneling microscopes, accelerometers, high-precision cameras, robotic micro-displacement mechanisms, orthotic prostheses, antennas and valves.

Experimental Study and Finite Element Analysis of Concrete Simple Supported Beams Strengthened with Externally Prestressed CFRP tendons Feng Xu1,a Le Huang1,b 1School of Civil and Architectural Engineering, Wuhan University, Wuhan ,430072, China a whu_xf@126.com, b815098273@qq.com Keywords: concrete simple supported beam; external prestressing; strengthening; CFRP tendon; experimental study; finite element analysis Abstract：The concrete simple supported beams were strengthened by an innovative device mainly includes oblique screws and linear CFRP tendons.
Based on this, the stress of concrete near holes was analysed using finite element method(FEM), which can provide a reference for practical engineering application.

It can provide the feasible method for the study of the string in the oil drilling and production engineering and conduct the development of drillstring dynamics in horizontal well drilling engineering.
Introduction In petroleum drilling engineering, drillstring is a slender structure, it utilizes self weight and rotary motion to exert drilling pressure and torque for breaking rock .
This method can describe the dynamic behavior of rotating drillstring and provides a feasible method for the study of the string in the oil drilling and production engineering
Journal of Harbin University Of Civil Engineering And Architecture, 2000.33(3):6-10 [4] Wang quanzhi.Drilling fluid flow influence on the bending of the drillstring [J].
Chinese Journal of Mechanical Engineering, 2007, 43(9): 215–219.

Study on Crack Resistance of Steel Fiber Reinforced Self-stressing Concrete in Old Bridge Reinforcement Boxin Wang a, Chengkui Huang b The State Key Laboratory of Coastal and Offshore Engineering Dalian University of Technology, Dalian Liaoning, 116024, P.R.C a platinumzinc@sina.com, bHuangck@dlut.edu.cn Keywords: crack resistance; old bridge reinforcement; steel fiber; self-stressing concrete; composite T-beam Abstract: Steel Fiber Reinforced Self-stressing Concrete (SFRSSC) is a new type of fiber reinforced composite material.
It has various applications in civil engineering for its well known superior properties such as self-expansive performance and high tensile resistance.

Benhadj-Djilali1,f 1Faculty of Science, Engineering & Computing, Kingston University London, SW15 3DW, UK aF.
Joint design technology has become a main factor in structural integrity to design of composite sub-structures in various engineering disciplines such as aerospace structures, marine engineering, automotive structural parts, micro-electro-mechanical systems, wind turbine blades and also civil structures for strengthening.

Study on Calculation of Rock Pressure and Determination of Depth for Shallow Asymmetric Tunnel Xiaojun Zhou School of Civil Engineering, Southwest Jiaotong University, Chengdu 610031, China Email: Zhouxjyu69@163.com Key words: Shallow asymmetric tunnel, rock pressure; overburden depth, calculation method, friction angle Abstract.
The overburden depth tm is derived when the pressure q reaches its maximum value and is denoted in Eq.(24) (24) According to Eq.(21), if it takes negatives then it denotes that lateral pressure meets e01<0, and this signifies no meaning in engineering.
Acknowledgement The author would like to acknowledge the financial support of the Visiting Scholar Foundation of Key Lab for the Exploration of Southwestern Resources & Environment Disaster Control Engineering in Chongqing University.

Boundary element method for crack analysis in two-dimension anisotropic solid Chongxi Liu1, a * 1 School of Aerospace Engineering,Beijing Institute of Technology,100081,China achongxi315@gmail.com Keywords: boundary element method, fracture mechanics, anisotropic material, finite domain Abstract.
Boundary element method is a new numerical method in computational mechanics, which is widely used in the field of civil engineering, chemical industrial, mechanical engineeringand space technology.
Dong, K.Y.Lee: Engineering analysis with boundary elements Vol. 28(2004), p. 1293