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Henan, Zhengzhou, China aameispring@163.com, blvhongjv@163.com Key words: Concrete material; Overpass; Culvert; Underpass; Lengthening technique Abstract: The widening of expressway refers to many overpass, culvert and underpass made of concrete material.
Lengthening technique about concrete material of culvert and underpass differs when the widening method of expressway is different.
In the end, the application of lengthening technique about concrete material is introduced by engineering examples.
Lengthening technique of overpass, culvert and underpass made of concrete material Lengthening technique of overpass.
References [1] Dezhi Wang: submitted to Liaoning Communication Science and Technology (2001) (in Chinese) [2] Zhenbo Song: Liaoning Communication Science and Technology (2004) (in Chinese) [3] Yongxu Xia, Zhanping You, etal: submitted to China Journal of Highway and Transport (2002) (in Chinese) [4] Yongxu Xia, Lianxu Xue, etal: submitted to Journal of Chang’an University(Natural Science Edition) (2002) (in Chinese) [5] Qiang Xu: submitted to China Communications Press(2011)(in Chinese)

Manufacturing of carbonaceous materials based on olive stones biomass for electrochemical applications Anastasia Pikasi, Pantelitsa Georgiou and Johannis Simitzis* National Technical University of Athens, School of Chemical Engineering, Department III, "Materials Science and Engineering", Laboratory Unit "Advanced and Composite Materials", 9 Heroon Polytechniou str., Zografou Campus, 157 73 Athens, Greece *Corresponding author: simj@chemeng.ntua.gr, Fax. +30 210 7723252, Tel. +30 210 7723178 Keywords: Carbonaceous materials, carbon fibres, Pt electrodeposition, cyclic voltammetry Abstract.
Raw materials and pyrolysis parameters for the production of carbonaceous materials and their electrical conductivity The electrical conductivity of the materials is increased by increasing the pyrolysis temperature.
The arrows show the corresponding axes for both materials.
Sfyrakis: Journal of Applied Polymer Science Vol. 54 (1994), p. 2091
Lai: Materials Chemistry and Physics Vol. 112 (2008), p. 1074

The Study of Friction Materials in Brake Pad of Small Electric Car Kunyu Zhao1,a, Wen Jiang1,b, Zhengkun Li2,c, Xinkun Zhu1,d 1 Faculty of Materials Science and Engineering, Kunming University of Science and Technology, Kunming 650093, China 2 Faculty of Mechanical and Engineering, Kunming University of Science and Technology, Kunming 650093, China akyzhaoy@sina.com, bjiangwen0730@hotmail.com, c108376047@qq.com, d1123577732@qq.com Keywords: brake pad; friction materials; metal-based; lubrication; hard phase Abstract.
Friction block is composed of friction materials and binders.
In order to solve the problem of price low, short service life, bad performance of automotive brake friction materials, this paper compared the microstructures of two friction materials and provide theoretical basis for seeking suitable friction materials in small electric vehicles.
The phases and the functions in A and B　friction materials．
(in Chinese) [6] Zhongxin Yu, Yalun Huang and Laizhi Wang: Journal of Wuhan Automotive Polytechnic University.

Spinel LiMn2O4 cathode materials for lithium-ion battery played an important role in current new energy materials researching [4].
Experimental Section Preparation of LiMn2FyO4-y Materials.
The raw materials of LiNO3 (AR, Shanghai Hanson Chemical Reagent Co., Ltd.
Materials Characterization.
Yao: Materials Science and Engineering.Vol. 97 (2003), p. 160 [12] C.

Low-cost alternative adsorbents to conventional adsorbents refer to those materials with high to moderate adsorption capacity obtained from natural materials at very low or no cost.
These materials can be made of plant or non-plant based (Fig. 3).
Journal of Cotton Science, 11 (2007) 141-153
Shanthakumar, (2015), Efficacy of Moringa Oleifera and Phaseolus vulgaris (common bean) as coagulants for removal of congo red dye from aqueous solution, Journal of Materials and Environmental Science. 6(6) (2015) 1672-1677
Development of nanoporous textile sludge based adsorbent for dye removal for industrial textile effluent, Journal of Hazardous Materials, 422 (2022) 126864

The silicate / cement based composites is a group of materials which consist of silicate / cement paste matrix and e.g. sandstone, granite or basalt aggregate.
Eigenvector for both materials then form one joint eigenvector vk=vk0,vk1.
The authors would like to thank the Czech Science Foundation for financial support through the Grant 16/18702S.
L., Pasadena, C., Journal of Applied Mechanics 24 (1957) 109-114 [2] Knésl, Z., International Journal of Fracture, 1991, 48: (4) R79 – R83 [3] Hein, V.
S., International Journal of Engineering Science 12 (1974) 107-120

Building. (2006) 24-29 [2] Danilov A., Garkina I.,   Systems approach to the modeling and synthesis of building materials, Contemporary Engineering Sciences. 8 (2015) 219-225.  
Garkina I., Danilov A., Mathematical [3] Garkina I., Danilov A., Skachkov Y., Modeling of Building Materials as Complex Systems, Key Engineering Materials. 730(2017) 412-417 [4] Yu.
[5] Methods of System Analysis in Construction Materials, IOP Conf.
Series: Materials Science and Engineering. 245(2017) 062014
[6] Garkina I.A., Danilov A.M., Budylina E.A., Methodological principles design of composite materials, Journal of Engineering and Applied Sciences. 11(2016) 2524-2527.

Hydrogen Influence on Microstructure and Properties of Novel Explosive Welded Corrosion Resistant Clad Materials Michał Gloc1,a, Hanna Słomińska1,b, Łukasz Ciupiński1,c 1Warsaw University of Technology, University Research Centre - Functional Materials, Woloska 141, 02-507 Warsaw, Poland amichalgloc@wp.pl, bha.slominska@gmail.com, cL.Ciupinski@inmat.pw.edu.pl Keywords: Novel materials, explosive welding, hydrogen degradation Abstract.
The materials described in this article are widely used nickel alloy Inconel C-276 and super duplex steel SAF 2507 as clad materials for their superior resistance to corrosive environment and low alloy steel P355NH as a base material.
From the materials science point of view the interface is a complex system composed of intermetallic nanomaterials and amorphous compounds exhibiting often unique properties. 100 µm P355NH base material A SAF 2507 clad material Wavy joint with melted zones Melted zone B SAF 2507 clad material P355NH base material 20 µm ION etched melted zone C SAF 2507 clad material P355NH base material Wavy joint with melted zones D Inconel C-276 - clad material P355NH base material 100 µm E Inconel C-276 - clad material Melted zones P355NH base material 20 µm ION Etched melted zone F Figure 3.
The basic condition of obtaining the joint is forming the plastic zone in the collision area of welded materials.
Journal of Alloys and Compounds, Volume 671, Pages 446-451 (2016) [4] M.

Portland cement and Quicklime are the common modified materials used for dredged material improvement.
Characterisation of dredged materials.
Soil-water transfer mechanism for solidified dredged materials[J].
Yielding and shear behavior of cement-treated dredged materials.
Journal of Marine Environmental Engineering, 7 (2003) 101-123

Copper-based electronic materials prepared by SPS and their properties Zhongquan Guo 1, a, Haoran Geng 2, b and Baochuan Sun 3 1 College of Materials Science and Engineering, Shandong University, Jinan 250061, China 2College of Materials Science and Engineering, Jinan University, Jinan 250022, China 3 Yantai Engineering and Technology College, Yantai 264006, China a guozhongquan@163.com, b mse_genghr@ujn.edu.cn Keywords: SPS, Electrical Contact Composite Materials, Rare Earth Abstract.
RE has considerable influence on the comprehensive properties of copper-based electrical contact materials.
Basically there are two types of contact materials.
SPS is referred to an advanced technology that is used to prepare and synthesize materials with different properties, like ceramics, composite materials, etc.
New materials such as nanometer blocks, bulk amorphous blocks, multi-dimensioned materials with composite structure and functional gradient are also processed through SPS [4-7].