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It is a kind of practical and economic material to reuse the great amount of construction and demolition wastes, which has received many discussions nowadays.
In consistent with sustaining development, the recycled concrete which is a new green material and made from recycled concrete aggregates could be a perfect solution to resource and environment preservation.
Acknowledgements Thanks for the support of 2009KB22 of State Key Laboratory of Subtropical Building Science South China University of Technology Thanks for the support of 2009SCU11052 of young teachers to start research and fund projects of Sichuan University References [1] Xiao Jianzhuang, Lan Yang.
Journal of Shenyang Jianzhu University: Natural Science Edition, 2009, 25(4):683-688
Journal of Shenyang Jianzhu University: Natural Science Edition, 2010, 26(2):255-260

Experimental Section Experimental Materials CO2 was 99.9 (vol.%) and was obtained from Foshan Kodi Gas Chemical Industry Co., Ltd.
The adsorbent materials used in this study was coal-based activated carbon original cylinder (Φ3-5mm).
References [1] Hongqun Yang, Zhenghe Xu, Maohong Fan, Rajender Gupta, Rachid B Slimane, Alan E Bland, Ian Wright: Journal of Environmental Sciences, 20, 14-27, (2008)
Webley: Microporous and Mesoporous Materials, 2008, 111, 478-487
Levan: Microporous and Mesoporous Materials, 91, 78-84, (2006)

This technology was first declared by the US national science fund committee in 1987, and was developed quickly in the following years.
Today, this technology has spread into many science and technology fields such as biology science, material science [2].
Recent development of fabrication technology of biodegradable porous scaffold for tissue engineering, Journal of Tongji university (Natural science), 2005,33(12):1164-1167+1176 [2] Wang Han, Zhang Hua.
Present situation of development of porous scaffolds for tissue engineering, Journal of Tianjin polytechnic university, 2006,25(6):20-24 [3] Wu Jingmei, Wu Ruofeng.
Fabrication and characterization of the porous scaffolds for bone tissue engineering, New chemical materials, 2004,32(9): 17-20 [4] Zhao Jin, Yuan Xiaoyan, Yao Kangde, Progress in the fabrication technology of tissue engineered porous scaffolds, Chemical industry and engineering progress, 2002,21(9): 644-647 [5] An Xiao, Shi Yanchun, Chen Meihua, et al.

Fire Safety Journal, 41(2006): 155-163
Journal of Zhejiang University (Natural Science), 1998, 32(5): 597-602
(Natural Science Edition), 2008, 36(4): 123-125
JOURNAL OF TONG JI UNIVERSITY (NATURAL SCIENCE), 2006, 34(1): 89-92
JOURNAL OF TONG JI UNIVERSITY (NATURAL SCIENCE), 2006, 34(5): 580-585

Introduction The study of by-products of fullerene nanotechnology, so-called fullerene black (FB), is promising from the position of empowerment of effective application of nanostructured materials.
The possibility of using of fullerenes and fulleroid materials for modification is known from publications [8, 9].
The operating principle of tribological test is to wear down a pair of contacting materials during circular rotation of the table with the test-object under influence of normal static load in the air and in absence of lubrication.
, Fullerene Science and Technology 1 (1993) 199-219
Alekhin, et.al, Caprolons Mofied with Fullerenes and Fulleroid Materials, Russian Journal of Applied Chemistry 79 (2006) 306-309

Rare Metal Materials and Engineering, 2014, 43(3): 757
Materials & Design, 2015, 78: 85
Materials Transactions, 2013, 54(9): 1554
Rare Metal Materials and Engineering, 2010, 39(01):46
Journal of University of Science and Technology Beijing, Mineral, Metallurgy, Material, 2006, 13(2): 144-148

Study on Microstructure and Corrosion Behavior of Ag-Cu-Zn-Ni Alloys Fuxiang Huang1, a, Ping Yin1, b, Yonghong Xu2, c and Ying Zhang2, d 1 College of Materials Science and Engineering, Chongqing University of Technology, Chongqing, 400054, China 2 Chongqing Chuanyi metallic functional materials Co, Ltd, Chongqing, 400702, China ahfx@cqut.edu.cn, bwhatm@cqut.edu.cn, cxlq6540@sina.com, dzhangying2007@163.com Keywords: Ag-Cu-Zn-Ni alloys, Microstructure, Corrosion behavior.
Introduction Pure silver has lower electrical resistance and relatively cheap as considering that it's the best choice for electrical contact materials.
Commonly, electrical contact materials are prepared by silver-base alloys [1-5].
H and Becker: Journal of alloys and compounds Vol. 1-2 (2008), p. 292 [4] Michael R: IEEE Trans Vol. 2 (1990), p. 112 [5] Fehim Findik and Huseyin Uzun: Materials and Design Vol. 7(2003), p. 489 [6] Qiao Xun, Wang Jian, Zhou Shiping, He Xiaoyan, Li ji, Zhuang Dianxiang and Jiang Chuangui: Rare metal materials and engineering Vol. 7 (2008), p. 1309 (In Chinese) [7] Li Ji, Yang Futao, Zhou Shiping, Wang jian, Wang Yaodong, Jiang Chuangui, Tang Min and Wang Haiyan: Chinese Journal of Rare Metals Vol. 31 (2007), p. 1 (In Chinese) [8] Huang Boyun, Li Chenggong and Shi Kaili: China Materials Engineering Canon (The Vol. 5th, Engineering Mechanics of Nonferrous Metal Materials) (Chemical Industry Press, Beijing 2006) (In Chinese) [9] Lynn A.O'Brien and R.M.
German: Journal of materials science Vol. 23 (1988), p. 3563 [10] Fuxiang Huang, Ping Yin and Yonghong Xu: Advanced Materials Research Vol. 197-198 (2011) p. 507

Therefore, the presence of lightweight materials are needed.
Wallah,” Drying Shrinkage of Heat-Cured Fly Ash-Based Geopolymer Concrete” in Modern Applied Science journal, vol 3, No.12, December (200 J.
Aji, “Light Weight Geopolymer Paste made with Sidoarjo Mud (Lusi)”, Materials Science Forum Vol. 803(2015)pp63-74.
Huda “Lightweight Geopolymer Binder Base on Sidoarjo Mud” Materials Science Forum Vol. 803 (2015) pp 148-159.ISSN: 1662 9752.DOI: 10.4028 /www.scientific.net/ MSF.803.148 [10] R.Bayuaji, M.
Materials Science Forum Vol. 803 (2015) pp 49-57.ISSN: 1662-9752.

Z is the number of cutter’s teeth.is the cutter or workpiece’s moment of inertia. is the workpiece material’s elastic modulus.
[2] LIU Miao, CHEN Wenliang, ZHAI Jianjun, Research on the Optimization of Machining Parameters for Milling Operations[J], Journal of Yancheng Institute of Technology (Natural Science)( 2002), 15(01)
INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY(2010), 48: p. 1075-1090
[4] Zengxi Pan, Hui Zhang, Zhenqi Zhu, etc, Chatter analysis of robotic machining process, Journal of Materials Processing Technology (2006), 173:p.301-309
[5] Guillem Quintana, Joaquim Ciurana, Chatter in machining processes: A review, International Journal of Machine Tools & Manufacture (2011), 51: p.363–376

If the maximum dynamic stress is greater than allowable stress of materials, component fails.
Mechanical science and technology, 2002, 21(3):387-389
Beijing: Science press, 2006
Journal of system simulation, 2008, 20(17): 4501-4504
Journal of Northeastern University, 2005, 26(12): 1185-1187