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Ltd., Xinfeng town, Yancheng city, Jiangsu Province, China 4Wuxi inspection center of architectural quality, No.8 Xinhuihuan Road,Wuxi city, Jiangsu Province, China apanpan720@hhu.edu.cn, b13805108610@126.com, cYqjiang@hhu.edu.cn, d708858398@qq.com Keywords: Civil engineering materials, Autoclaved Aerated Concrete, Aluminum insertion, Properties Abstract.
Study on the compressive strength, shrinkage and effect of aluminum insertion materials on the hydration products of Autoclaved Aerated Concrete(AAC).
Low porosity, high crystal gel volume ratio and high hydration degree are the key of the high strength aluminum insertion aerated concrete.
Aluminum insertion materials improve the performance of the products. 1．Introduction Aerated concrete is a porous material which is produced by hydrothermal synthesis reaction of calcium and silica materials under certain conditions.
Experimental 2.1 Raw materials Self -made aluminum insertion materials; B06 ordinary aerated concrete(blank sample)- sample A B06 aluminum insertion aerated concrete- sample B 2.2 Test methods The mechanical properties of aerated concrete and the shrinkage performance of rapid method are tested according to GB/T 11969 - 2008.

Experimental Studies of Infrared Characteristics in the Deformation and Fracture of Engineering Solid materials subjected to external loading Yongjun Zhang1,2,a, Nianjie Ma3,b 1School of Civil Engineering, Qingdao Technological University, Qingdao 266033, China 2 State Key Laboratory for GeoMechanics and Deep Underground Engineering, China University of Mining and Technology, Xuzhou, 221008, China 3 Faculty of Resources and Safety Engineering, China University of Mining and Technology, Beijing, 100083, China azhangyj_bull@163.com, bnjma5959@126.com Keywords: Infrared radiation, Deformation, Fracture, Thermo-mechanical coupling, numerical simulation, Infrared omen Abstract.
The studies in recent years show that solid materials such as rock and concrete always have regular thermal infrared (TIR) characteristics when the solid samples are loaded, and the anomalous IR phenomena appear before samples failure.
The prospective method will be applied in the fields of mining engineering, underground engineering and side slope engineering.
The TIR radiation detection technology would be a prospective new technology in rock and mining engineering.
Acknowledgments Financial supports from Natural Science Foundation of China under Grant no.50904040, the National Basic Research Program of China under Grant no.2011CB201204, the China Postdoctoral Science Foundation under Grant no.20090461159 and State Key Laboratory for GeoMechanics and Deep Underground Engineering under Grant no.

According to the research content, the research object is defined as the experts and scholars and researchers that study or work in the engineering project management.
The project, the owner party, construction side, the third side, materials and equipments and other objectives are all potential of the variables in the structural model.
We can help owner to communicate with the various project participants, to reduce engineering change as far as possible and strengthen the management of the construction site.
Materials and third party belong to the secondary factors have a bigger impact.
Reasons for the delay of construction period in engineering projects, Journal of Huaqiao University (Natural Science), 04(2003):369-373

The forming process of composite materials The key technology of composite materials is to meet the product shape, size and surface quality of the premise, the reinforced material can be evenly distributed in a predetermined direction, and reduce the performance degradation, the base material to fully complete the curing reaction, the interface and the reinforced material with good, discharge of volatile gas, reduce product porosity.
From the fiber reinforced composite started by the military and engineering circles.
So the improvement of the process becomes the key to development process of advanced composite materials, the next step.
The key technology of fiber winding process of thermosetting composites(C) //Chinese glass steel raw materials market and glass steel latest technology forum proceedings, 2009: 5 -8 [5] .Wang Zhihui, Lu Jia.
Study on the fiber placement head.Mechanical engineer, 2007 (12): 93-94

Study on Axial Turning of Engineering Ceramics Xinli Tiana , Fang Guo b, Junfei Yangc , Baoguo Zhang d and Yatao Mao e National Key Laboratory for Equipment Remanufacturing, Academy of Armored Forces Engineering, Beijing 100072, China a tianxli719251@sohu.com, bpuzzlele@tom.com, cyjf-beijing@163.com, d zhang_baoguo@126.com, emaoyatao666@163.com Keywords: Engineering ceramics, Axial turning, Annularity tool, Removal mechanism Abstract.
The cutting thickness and feed rate could be more than 3~5mm and 30mm/min respectively in a cutting, and realized high-efficient, low-cost processing of engineering ceramics.
The primary cutting zone, the main material removal area, bears the main cutting force, and materials in this zone broke into debris in large-scale.
Using axial turning to machining engineering ceramics, the axial force is the main cutting force, and normal force and tangential force are too small which can be ignored.
Yu: Engineering Ceramics Processing Technology and its Application (Mechanical industry publishing house, China 2008) [2] S.W.

The conclusion can be use as reference on excavating step for pavement widening engineering.
Journal of Traffic and Transportation Engineering, 2007, 7(1):54-57 [3] JIANG Xin, QIU Yanjun.
Journal of Engineering Geology, 2005, 13(3):419-423 [4] QIAN Jinsong, LIN Jianming.
Analysis of Mechanical Responses for Highway-widening Engineering on Soft Soil Foundation [J].
Journal of Traffic and Transportation Engineering, 2010, 10(1):106-111 [7] MA Xiaohui, LI Lihan.

Coupled with the the structural differences of the abutment and embankment, how to ensure abutment stable and prevent bridge head bump has been an engineering roadblock in the abutment approach embankment filling engineering.
Engineering properties of liquid fly ash Mix Proportion of liquid fly ash material.
Engineering properties of liquid fly ash material.
The technical indexes of different materials were shown in Table 2.
“Test Methods of Materials Stabilized with Inorganic Binders for Highway Engineering”.

Selection and Durability of Stainless Steels for Civil Engineering Applications Jürgen Mietz1,a* and Andreas Burkert1,b 1Bundesanstalt für Materialforschung und -prüfung (BAM), Division 7.6 Corrosion and Corrosion Protection, Unter den Eichen 87, 12205 Berlin, Germany ajuergen.mietz@bam.de, bandreas.burkert@bam.de Keywords: Stainless steel, civil engineering, atmospheric corrosion, corrosion resistance, durability Abstract.
In comparison to the commonly used austenitic stainless steels for applications in civil engineering the family of duplex stainless steels offers some interesting options.
Practical Experiences Materials and Methods.
All other materials were free of any corrosion attack.
Ohnaka, Corrosion Engineering 38 (1989) 92-97

Research on Improving the Assessment Process of Students’ Knowledge in the Field of Materials Processing STRNAD Gabriela Faculty of Engineering, “Petru Maior” University of Targu-Mures, N.Iorga str, 1, 540088, Targu-Mureş, Romania gabriela.strnad@ing.upm.ro Keywords: knowledge assessment, academic grading, engineering training, blog.
The paper presents the research work carried out in order to determine the optimum assessment process in the case of an introductory engineering course, Technology of Materials.
Methodology Technology of Materials course is taught to the students in the second year of Faculty of Engineering, specializations: Machine Building Technology and Industrial Engineering Economics.
Conclusion Present paper presents a research work on improving the assessment methodology in the case of an introductory engineering course, Technology of Materials.
Shaeiwitz, Outcomes assessment in engineering education, Journal of Engineering Education.

Strength and mode analysis of testing machine of 3MW wind turbine bearing with finite element method Duan Zhenyun1,a, Wang Ying1,b, Hong Mingdong2,Ren Guofang2,c 1School of Mechanical Engineering, Shenyang University of Technology, Liaoning, 110870, China 2Liaohe Oilfield, Liaoning, 124010, China a duanzhenyun@yahoo.com.cn, b wangying87621@163.com, c rgf2000@sina.com Key words: wind turbine bearing; key components of testing machine; strength; mode analysis.
The static strength and dynamic properties of testing machine key components of 3MW wind turbine bearing were analyzed with the finite element software ANSYS to obtain the strength and stiffness check as well as the optimizing design of testing machine key components of wind turbine bearing.
The strength was checked and satisfied with the demand of material strength.
Material Properties The material of bearing testing machine was Q235, the elastic modulus was 2.1×105 MPa, Poisson's ratio was 0.3, the density was 7.85×10-6kg/mm3, yield strength σs was 235MPa, ultimate strength σb was 500MPa.
As shown in Figure 2, the maximum stress of the bearing frame and left loading frame are respectively 95.984MPa and 118.928MPa, [σ] is the allowable stress values which considered the material safety factor and the shape factor, [σ] =σs/s. σs is yield strength of the material, σs = 235MPa; s is the safety factor.