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Effect of butane diacid on crystal morphology and reaction process of α-calcium sulfate hemihydrate in preparation from flue gas desulphurization gypsum Xianfeng Liu1,2,a, Jiahui Peng1,b, Mingzheng Chen2,c, Leng Bai1,d, Liu Liu2,e 1 College of Materials Science and Engineering, Chongqing University, Chongqing 400045, China 2 School of civil Engineering and Architecture, Chongqing University of Science and Technology, Chongqing 401331, China alpioneer@sina.com, bpengjh@cqu.edu.cn, cchenmingzhengcmz@163.com, dbaileng74@yahoo.com.cn, ecqkjniuniu@126.com Keywords: flue gas desulphurization gypsum, α-calcium sulfate hemihydrate， high strength gypsum，salt solution method at atmospheric pressure, crystal modifier Abstract: Modifying crystal morphology was the key technology of the preparation of α-calcium sulfate hemihydrate from flue gas desulphurization gypsum using the hydrothermal method under atmospheric pressure.
[5] Xiaoqin Wu, Shitang Tong, Baohong Guan, et al: Chinese Journal of Chemical Engineering, 19(2011)349-355

Mechanical Properties Research of Anionic Polymerized PA6/ABS Alloy Hongkai Zhao1, a, Liguang Xiao1,b and Jingwu Gao2,c 1School of Materials Science and Engineering, Jilin Architectural and Civil Engineering Institute, Changchun, Jilin, 130118, China 2 Jilin Construction Engineering Group Company Limited, Changchun, Jilin, 130021, China ahkzhao003@126.com, bxlg627@163.com, c1369875079@qq.com Keywords: Fluid Rubber, ABS, Nylon 6, Anion, In-situ Polymerization, Mechanical Properties.

Water Resistance Research of Anionic Polymerized PA6/ABS Alloy Hongkai Zhao1, a, Liguang Xiao1,b and Jingwu Gao2,c 1School of Materials Science and Engineering, Jilin Architectural and Civil Engineering Institute, Changchun, Jilin, 130118, China 2 Jilin Construction Engineering Group Company Limited, Changchun, Jilin, 130021, China ahkzhao003@126.com, bxlg627@163.com, c1369875079@qq.com Keywords: Fluid Rubber, ABS, Nylon 6, Anion, In-situ Polymerization, Water Resistance.

Experimental Study on Flexural Behavior of Damaged Concrete Beams Strengthened with NSM-CFRP Strips Gusheng Tong, Yongxiang Wang, Qiulan Wu,Yongsheng Liu (School of Civil Engineering and Architecture, East China Jiaotong University, Nanchang 330013, China) Key words: CFRP Strip; Near-surface mounted (NSM); Flexural strength; Reinforcement; Concrete beams.
Engineering Mechanics, 2008，25(12):106-113,122 [4] Wang B, Hou SL, Liu DZ et al.
Composites Part B: engineering.2007, 38:119-14 [6] Wahab N, Soudki K A, Topper T.

.), School of Engineering of São Carlos, University of São Paulo, 170p, 2010
Thesis (Master of Architecture and Construction) - State University of Campinas, Faculty of Civil Engineering, Architecture and Urbanism
B. - Experimental analysis of the durability of high performance concrete with addition of waste tire rubber and rice husk ash, Dissertation (Masters), São Paulo State University, Faculty of Engineering of Single Island, SP-2009 [10] OLIVITO, R.S.; ZUCCARELLO, F.

Introduction Although laboratory studies have achieved some valuable results, self-healing of concrete has not yet formed mature technology to be used in practical engineering, due to the repair agent and agent storage container used in the experiments, in a way.
Journal of Materials in Civil Engineering, 11(3):206–213
In:The 3rd Materials Engineering Conference, 1994, San Diego, USA: 367-374

Oxygen Transfer through Air Entrainment over Stepped Weir Jin-Hong Kim1, a 1Department of Civil, Environmental and Plant Engineering, Chung-Ang University Seoul, Korea ajinhkim@cau.ac.kr Keywords: oxygen transfer, air entrainment, stepped weir, nappe flow, skimming flow Abstract.
A Water Resources Technical Publication, Engineering Monograph No. 41, pp. 251-285
Journal of the Environmental Engineering, ASCE, Vol. 116, No. 3, pp. 503-523

Safe and Sustainable for the Structural Silicone Sealant in Ultra High-rise Building Curtains Hailong Zhang1, 2, a and Ling Quan3, b 1 School of Civil Engineering and Communication, North China University of Water Resources and Electric Power, Zhengzhou 450011, China 2 Zhengzhou Zhongyuan Applied Technology Research and Development Co., Ltd.
Jiang, et al, Technical Code for Glass Curtain Wall Engineering, Ministry of Construction of the People’s Republic of China, Beijing, 2003
Yeoman, et al, Sealants for solar collectors, Industrial ＆ Engineering Chemistry Product Research and Development, 20 (1981) 508-514.

An Analytical Study on Evaluation of Lap Splice Length of GFRP Rebar according to Reinforcement Ratio Hyo-Jin, Yun1,a , Hyun-Ki, Choi1,b, Chang-Sik, Choi2,c 1Department of Sustainable Architectural Engineering, Hanyang University, Seoul, South Korea 2Department of Architectural Engineering, Hanyang University, Seoul, South Korea ababyhyang@hanyang.ac.kr, bchk7796@hanyang.ac.kr, cccs5530@hanyang.ac.kr Keywords: Lap spliced length, GFRP rebar, finite element method, reinforcement ratio.
Acknowledgements This work was financially supported by the Korea Science and Engineering Foundation (KOSEF) grant funded by the Korea government (MEST) (2011-0000417).
References [1] ACI Commitee 440, ACI 440.1R-06, Design and Construction of Concrete Reinforced with FRP Bars, American Concrete Institute (2006) [2] Gao D, Benmokrane B and Tighiouart B, Bond Properties of FRP Rebars to Concrete, Technical Report, Department of civil Engineeringm University of Sherbrooke, Canada,(1998b), p. 27 [3] Ragi Aly, Braim Benmokrane and Usama Ebead, Tensile lap splicing of Fiber-Reinforced Polymer Reinforcing Bars in Concrete, ACI Structural Journal/Nomenber-December(2006) [4] Choi Hyunki, Choi Yuncheul and Choi Changsik, Experimental Study on Behavior of Flewural Member with Lap-Spliced GFRP Bar, Architectural Institute of Korea, Vol. 27 (2011), P. 3 [5] Choi Donguk, Chun Sungchul and Ha Sangsu, Splice Length of GRRP rebars Based on Flewural Tests of Unconfined RC Members, Korea Concrete Institute, Vol. 21 (2009), P. 65 [6] ABAQUS 6.10, general-purpose computer program [7] A Collins, Shear design for high strength concrete, CEB Bullentin d'Information, No

A torsional analysis, therefore, has great importance to engineering safety.
According to the reference [7], torsional moment of inertia of transformed cross section is (4) where; , , Fig. 2 Cross section of box girder Japanese engineers modified Eq.4 as[8] (5) where, .
Cafolla: Corrugated webs in plate girders for bridges (Proceedings of Institute of Civil Engineering Structures and Bridge 1997).