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Building material cost accounts for about 65% of the engineering cost, and some even reach more than 75% in the current formation of the construction installation engineering cost in our country, so the price of materials determines the engineering cost to a great extent.
It is essential for proprietor to master the price fluctuations of building materials to control engineering cost, and it is also important for contractor to determine the bid price.
Building material cost accounts for about 65% of the engineering cost in the current formation of the construction installation engineering cost, and the proportion has a rising trend.
These data show that materials is in a obviously dominant position in the fabrication of engineering cost, Therefore, it is especially important to grasp the building materials price information accurately.
Determine the engineering material price is beneficial to increase investment returns [4].

The mixtures of geopolymer concrete were designed with proportion changes of among materials to evaluate effects of the proportions to engineering properties of products.
Relationship among Seawater content (%, in weight) and engineering properties of geopolymer materials.
Nguyen, Evaluation on Roles of Activated Silicon and Aluminum Oxides for Formation of Geopolymer from Red Mud and Silica Fume, Key Engineering Materials, 777 (2018) 513-517
Nguyen, Effect of Alkaline Activators to Engineering Properties of Geopolymer - Based Materials Synthesized from Red Mud Key Engineering Materials, 777 (2018) 508-512. doi:10.4028/www.scientific.net/KEM.777.508 [15] H.T.
Le, Leaching Behavior and Immobilization of Heavy Metals in Geopolymer Synthesized from Red Mud and Fly Ash, Key Engineering Materials, 777 (2018) 518-522. doi:10.4028/www.scientific.net/KEM.777.518 [16] H.T.

This edition presents a series of research results in materials science and technologies in mechanical engineering, biomedical engineering, environmental protection and construction.
The presented book will be useful to many engineers and specialists in mechanical engineering, construction, biomedical engineering and environmental protection.
Steel, Alloy, Superalloy, Shape Memory Alloy, Corrosion, Corrosion Protection, Polymer, Mechanical Properties, Friction Stir Welding, Surface Grinding, Nanoparticle, Catalytic Degradation, Building Materials, Structural Element, Road Pavement

Case Study on CDIO-based Engineering Education Mode through College-Industry Lingkages Weiwei YE a; Wu LU Zhejiang University City College , Hangzhou, China aYeweiwei@zucc.edu.cn Key Words: CDIO; Engineering Education; College -Industry linkage Abstract.
Engineering Education through College-industry linkage Engineering is different from ordinary education or traditional specialized education.
This teaching method makes engineering more absorbing to engineering students.
Background China’s plastic machinery industry came into being in the later years of 1950s, and as an important part of China’s machinery industry, it provides plastic raw material industry and plastic products industry with key equipment.
Issues in Engineering Education: A Working Paper of the Board on Engineering Education. http://www.nationalacademies.org/nrc/, 1993.8 [6] NSF.

Parameters Optimization of the Ultrasonic External Cylindrical Lapping Process for Nano ZTA Engineering Ceramics Using Response Surface Methodology Feng Jiao1,2,a, Bo Zhao 1,2,b, Chuan Shao Liu2,c and Xun Sheng Zhu1,d 1 School of Mechanical Engineering, Shanghai Jiao Tong University, Shanghai, China 2 School of Mechanical and Power Engineering, Henan Polytechnic University, Henan, China a jiaofeng@hpu.edu.cn, bzhaob@hpu.edu.cn, clcs@hpu.edu.cn, dxszhu@sjtu.edu.cn Keywords: Ultrasonic lapping, Nano ZTA engineering ceramics, Surface roughness, Material removal rate, Response surface methodology (RSM) Abstract.
Introduction With the progress of material science, engineering ceramics are playing an increasingly important role in the fields of modern manufacturing industries, astronautics, electronics and precision mechanical engineering because of their superior physical and mechanical properties [1].
Based on the above reasons, the project of ultrasonic aided lapping with solid abrasive material of engineering ceramics was put forward.
Lin: Diamond & Abrasives Engineering, Vol. 124 (2001), p. 36 [2] J.
Gao: Key Engineering Materials, Vol. 258-259 (2004), p. 297 [5] S.Malkin, T.W.Hwang: Annals of the CIRP,Vol. 45(1996), p.569 [6] J.D.

This special issue of the Key Engineering Materials contains the papers presented in the 11^th Asia-Pacific Conference on Engineering Plasticity and Its Applications (AEPA2012), held in Singapore, 5-7 December 2012.
This conference continues the primary objective of bringing together an international group of scientists, researchers and engineers from academic to industrial institutions, to exchange original ideas, discuss new developments and disseminate the latest research findings in the field of engineering plasticity.

Research on Materials for Construction Projects Cost Control —Taking a Project in Shijiazhuang as an Example Xiangmei Yu1, a, Dongyang Geng1, b and Zhenbin Xie2, c 1 Shijiazhuang University of Economics, Shijiazhuang 050031, China 2 Hebei Huaxin Construction Engineering Co.
Table 1 Composition of civil engineering total cost and proportion of general expenses No.
Total cost of civil engineering is about 51.25 million RMB, average cost per square meter is 1904.31 RMB.
Composition of civil engineering total cost and proportion of all items are shown in Table 1, which shows clearly that material cost is of absolute dominance among all expenses, hence, is the key point in cost control.
Jia, Construction Engineering Technology and Measurement, China Planning Press, Beijing, (2009) 272-275

A PCR-DGGE approach to evaluate the influence of environment materials for civil engineering–different carbon sources on a catching bed biofilm reactor in start–up phase Yan Zhang1a, LiLi Wang1b, ZhengYang Yang 1a, XuYing Zhao2a HuanGuang Liu1a, Min Zhu1a 1Beijing Key Lab of Water Quality Science and Water Environmental Restoration Engineering College of Arc. and Civ.
Abstract: In this study, the effect of environment materials for civil engineering was investigated through two sets of parallel reactors with sodium acetate and starch as carbon source separately.
Schematic diagram of catching bed biofilm reactor Materials.
The influence of environment materials for civil engineering–different carbon sources on catching bed biofilm reactor in start-up phase was not much different.
Microbial and water treatment engineering.

Developing of ISO14000 and Environmental material Haiying Zhang 1,a, Guoxian Ma 1,b, Guoliang Yuan1,c 1 Department of Chemical Engineering, Shanghai Institute of Technology, Shanghai, China; aJuli506@126.com, bMagx@sit.edu.cn, c287633085@qq.com Key words：ISO14000 and environmental material; developing; environmental material system Abstract：In order to maintain the competitiveness of traditional industries on the market and encourage industrial circles to plan environmental improvement and pollution precautions from the interior of their organizations, ISO14000 has been enacted to protect the environment.
Hence, the course “ISO14000 and Environmental Material” has been the primary course in various kinds of higher educational institutions．It is necessary to give the course in bilingual language to the undergraduates，especially those who study in Environmental Engineering.
All materials are to be made in English, while teaching is made by half English and half Chinese.
Methods and problems of teaching in and preparing materials for the bilingual courses were studied [2].
Key concepts of EMS.

Covering and Reinforcement Key Technologies of Airport Old Cement Concrete Pavement Shi Bao Hua1,Ning Wen Pu1,Wang HanWei 2,Sun Tao 2 1School of engineering, Air Force Engineering University，Xi’an 710038，Shanxi ,China 2Airfield and Barracks quarters section, logistics department, Jinan Air force，Jinan 250000，Shandong ,China Keywords: Airport engineering；Cement concrete； Pavemen； Covering and reinforcement；Asphalt concrete.
Practice has proved that if isolated material adopts the asphalt materials with better stability, such as asphalt felt, sand asphalt, particulate type bituminous concrete, etc, covering result is better.
Secondly, it is the direct type, the request of chiseled unsmooth lead to engineering difficulty and investment increased, so seldom adopt at present. 4.
The modified asphalt layers also takes on certain anti-reflection effect, but not exceed the former three materials in anti-reflection ability. 4.2 Tests of thickness of asphalt covering layer Covering by bituminous concrete, another key technology is to control covering thickness.
Thereby, taking into economical efficiency and engineering performance account, the thickness of asphalt covering strengthening course isn’t suitable less than 4cm, and isn’t suitable more than 15cm[3]. 5.