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Effect of Cerium on Microstructure and Wearing Resistance of 5CrMnMo Hot Working Die Steel Xin Hao 1, 2, a, Meiling Pan1, b and Xiaofei Liu 1,c 1College of materials science and engineering, Inner Mongolia University of technology,Inner Mongolia, Huhot 010051,China；2Key Laboratory of Materials Processing﹠Control Engineering of Inner Mongolia Autonomous Region, Inner Mongolia University of Technology, Inner Mongolia ,Huhot, 010051 ahaoxin2008@163.com, b953588576@qq.com, cliuxiaof@126.com Keywords: Cerium, 5CrMnMo, Structure, Worn-out Appearance, Wearing Resistance, Rare Earths Abstract.
Study on Treatment of Alloy Steel’s Surface and the Wear Experiment [J].Journal of Shenyang architectural and civil engineering institute, 2005, 21(3):281 [4] Cheng Jianhui, Ge Peiqi, Liu Ming.
Experimental Study on the Friction and Wear Behavior of Sulphurized 45 Steel under Dry Friction Condition [J].Lubrication Engineering, 2002, 5:32 [5] Yang Qingxiang, Gui Zhangquan, Liao Bo, et al.
Experimental Research on the Anti-wear Properties of the Steel NM360 [J].Journal of Wuhan University of Technology (transportation science and engineering), 2006, 30(3):395 [9] Hu Zhenqian, Zhang Wenhua.Effect of rare earths on the wear resistance and high temperature oxidation resistance of H13 steel surface treated with S N C Co diffusion [J].Journal of rare earths, 1998, 16(3):13

Research about different molding methods’ effect on the resistance against frost and shrinkage of cement stabilized gravel Hailong Liu1, a, Peifeng Cheng2, b 1,2School of Civil Engineering, Northeast Forestry University, Harbin 150040, China aliuhailong.66@163.com,bchengpeifeng@126.com Keywords: Cement stabilized gravel; Unconfined compressive strength; Vibration; Dry shrinkage; Gradation; Resistance against frost; Construction control.
Of which the frost damage and road crack were more serious[1].So it was necessary combining engineering entity to do the research work.
This paper used indoor test research combining the engineering entity to analyze the performance of road.
And then conducted the 7d unconfined compressive strength test in accordance with the Test Methods of Materials Stabilized with Inorganic Binders for Highway Engineering (JTG E51 -2009).
Fig.1 Specimen of the static pressure method Fig.2 Specimen of the vibration method Analysis of the gradation influenced by molding methods combined with engineering entity , results was described in table 4.According to maximum dry density obtained by the heavy compaction test ,compaction was between 102%~104% at the normal compaction cases, the average was 103%.But on the basis of maximum dry density obtained by vibration compaction, the compaction was almost between 99%~100%.Now vibration rollers were used in the field construction, so vibration was more suitable to the construction practice and it would be more rational and effective about the control of the construction quality and the test data.

Introduction The growth of production and consumption of metal products in our country and in the world promoted the intensive development of theoretical and engineering metal science from the mid twenties onwards.
However the subsequent at the end of the last century political developments delayed the development of home metallurgy and heavy engineering and many enterprises began to use foreign equipment, materials and technologies.
On the basis of the Russian MIT order №654 from March 31st 2015 «About the confirmation of action plan in import phase-out in the business of heavy engineering of the Russian federation» was developed and confirmed the field action plan in import phase-out in civil industries of the Russian Federation under which the import ration of this segment of metallurgical equipment must be reduced from 70% (2015-2016) till 35% (to the 2020es) by means of development and implementation of projects oriented to the output of import-substituting production.
Kuznetsov, Peculiarities of Thermal Hardening of Experimental Sparingly-Alloy Tool-Class Steels, Materies Engineering and Technologies for Productions and Processing II: Materials Science Forum.
Materies Engineering and Technologies for Production and Processing II.

Mechanically Resistant Composite Material Using Optimal Amount of Pre-Treated Hazardous Waste Tomáš Žlebek1,a*, Jakub Hodul1,b and Rostislav Drochytka1,c 1Brno University of Technology, Faculty of Civil Engineering, Veveří 331/95, Brno, Czech Republic azlebek.t@fce.vutbr.cz, bhodul.j@fce.vutbr.cz, cdrochytka.r@fce.vutbr.cz Keywords: Hazardous waste, Epoxy matrix, Mechanical resistance, Composite, Treated sludge.
Lombillo, Epoxy composites containing CFRP powder wastes, Composites Part B: Engineering 59 (2014) 260-268
Drochytka, Solidification of hazardous waste with the aim of material utilization of solidification products, Procedia Engineering 108 (2015) 639-646
París, Experimental mechanical characterization of composite-concrete joints, Composites Part B: Engineering 154 (2018) 148-156
Ruggiero, Mechanical properties and abrasive wear of white/brown coir epoxy composites, Composites Part B: Engineering 146 (2018) 88-97.

Smith, P.E.2,b 1 Baker Engineering and Risk Consultants, Inc. 3330 Oakwell Court, San Antonio, TX 78218, USA. 2 Fyfe Co.
The US Army Corps of Engineers [7] provides the only acknowledged response criteria specifically for metal stud walls.
Design of Blast Resistant Buildings in Petrochemical Facilities, American Society of Civil Engineers, New York, NY, Second Edition (2010)
Army Corps of Engineers Protective Design Center.
Army Corps of Engineers Protective Design Center.

Influence of Br modification on collecting property of dodecanoic acid Yimin Zhu1,a, Binbin Luo1,b, Jinyue Mi1 1Mineral Processing Engineering College of Resources and Civil Engineering Northeastern University ,Shenyang 110004,China a1271369960@qq.com , b840568129@qq.com Key words: Hematite,Reverse flotation,Collector,Activation,Mechanism Abstract.
Marabini, M Cirlachi, P Plescia, et al: Chelating reagents for flotation, Minerals Engineering, 2007, 10: 1014-1025
Minerals Engineering, 2000(13): 1361-1376
Minerals Engineering, Vol.13, No.14-15 (2000): 1495-1503.

Based on the orthogonal design to study the design and optimization of material composition for curing compound Congcong Han1, 2, a*, Bo Tian1, b, Jingliang Song3, c and Ziyi Hou2, d 1Research Institute of Highway Ministry of Transport，Beijing 100088，China; 2Hebei University of Technology，Tianjin 300401，China; 3Hebei University of Engineering School of Civil Engineering，Handan 056038，China ahancong1988@qq.com, btbb73@yahoo.com, cjinlong.oid@qq.com dhouziyi@sina.com Keywords: Wax emulsion; VAE emulsion; Modified; Water retention; Orthogonal design.
The method of compressive strength ratio test is based on the “Curing Compounds of Concrete for Highway Engineering” JT/T 522-2004, the concrete specimens using single curing, testing 7d strength. 3 Test results and analysis 3.1 Test data processing and analysis It can be known by the regimen principle of curing compound that the effective water retention is one important index to determine whether it is good or not.
Factor B is less than the major factor for the compressive strength ratio, and is the relatively minor factor for the effective water retention, so chose B2; Factor C is the major factor for the effective water retention, and is the secondary factor for the compressive strength ratio, so chose C5; Factor D is the major factor for both effective water retention and compressive strength ratio, according to the experience during the test to chose D4; Factor E is the less important factor for the compressive strength ratio, and is the secondary factor for the effective water retention, so chose E2; Factor F is more significant factor for effective water retention, and is the secondary factor for the compressive strength ratio, so chose F3; Finally obtain the best mixture ratio of curing compound A2B2C5D4E2F3. 3.2 Curing compound performance test (1) The concrete effective water retention test The effective water retention test uses the standard of “Curing Compounds of Concrete for Highway Engineering
And the test method is based on “Curing Compounds of Concrete for Highway Engineering” JT/T 522-2004 to test indexes of curing compound, the test results shows that the optimum ratio of curing compound had good effect on concrete curing, and conform to the requirements of the specification. 5 Acknowledgements The study is part of the science research project “Polymer modified cement concrete pavement construction maintenance technology and equipment research”, the Grant No. is 2011318223420.

Static and Dynamic Backcalculation Analyses of an inverted pavement structure James Maina1, a, Wynand JvdM Steyn2,b , Emile B van Wyk2,c and Frans le Roux2,d 1CSIR Built Environment, Pretoria, South Africa 2 Department of Civil Engineering, University of Pretoria, Lynnwood road, Hatfield, South Africa ajmaina@csir.co.za, bwynand.steyn@up.ac.za, cvanwyk.eb@gmail.com, dfwleroux@hotmail.com Keywords: backcalculation, inverted pavement, FWD.
Advances in Engineering Software, 37, pp. 421-431. 2006
Journal of Transportation Engineering, 136(3), pp. 196-204. 2010
The International Journal of Pavement Engineering, 6(2), pp. 115-213. 2005
Soil Dynamics and Earthquake Engineering, 29, pp. 845-54. 2009.

Flood Mapping Analysis for the Downstream Urban Area of the Keureuto Sub-Catchment with River Interventions Renaldi Renaldi1,a, Shifa Nabila2,b, Fadhliani Umar3,c*, Khairullah Yusuf4,d, Adzuha Desmi5,e, Fasdarsyah Fasdarsyah6,f, Teuku Mudi Hafli7,g 1,2,3,4,5,6,7Department of Civil Engineering, Malikussaleh University, North Aceh, Aceh, Indonesia arenaldi.200110029@mhs.unimal.ac.id, bShifa.200110030@mhs.unimal.ac.id, cfadhliani@unimal.ac.id, dkhairullah@unimal.ac.id, eadzuha@unimal.ac.id, ffasdarsyah@unimal.ac.id, gteukumudi@unimal.ac.id Keyword: Flood mapping, Keureuto, HEC-RAS, RAS-Mapper, River interventions.
In this study, the Hydrologic Engineering Center's River Analysis System (HEC-RAS) modeling program was used to analyze the inundation area along 2 km river crossing the Matangkuli area.
Hydraulic Analysis HEC-RAS (Hydrologic Engineering Center's River Analysis System) and RAS-Mapper developed by the Hydrologic Engineering Center (HEC), US Army Corps of Engineers (USACE) [10] are applied for the hydraulic analysis.

Monitoring and Fault Identification in Aeronautical Structures Using an ARTMAP-Fuzzy-Wavelet Artificial Neural Network Fernando Parra dos Anjos Lima1, a *, Simone Silva Frutuoso de Souza2, b, Fábio Roberto Chavarette3, c, Mara Lúcia Martins Lopes3, d, Antonio Eduardo Turra1, e and Vicente Lopes Júnior1, f 1Mechanical Engineering Department, Faculty of Engineering of Ilha Solteira (FEIS) 2Electrical Engineering Department, Faculty of Engineering of Ilha Solteira (FEIS) 3Mathematics Department, Faculty of Engineering of Ilha Solteira (FEIS)UNESP – Univ.
Civil Struct.