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Composite I-shaped beams are currently used in aerospace, ocean and civil engineering applications.
In many aerospace, ocean and civil engineering applications, composite I-shaped beams are currently used as primary structures.

Ultrasonic Damage Measurement in Reinforced Concrete Beams * Rogerio Bairrao 1 , Marcin Chrzanowski2 , Joaquim Duque 1 and Pawel Latus2 1 National Laboratory for Civil Engineering, Av. do Brasil 101, Lisbon, Portugal, bairrao@lnec.pt 2 Cracow University of Technology, 31-155 Cracow, ul.
Ten identical specimens were prepared and tested at the LNEC (National Laboratory for Civil Engineering, Lisbon) shaking table facility [2].

Box 77, D/A PejabatPosBesar, Kangar, Perlis 01000, Malaysia 3Schools of Civil Engineering, USM, Engineering Campus, 14300 Nibong Tebal, Seberang Perai Selatan, Pulau Pinang, Malaysia.
Therefore, the new soil stabilizer, viable and sustainable alternative is always in search of civil engineering industries to replace cement.
[2] Magnan, J.: American Society of Civil Engineers, (Geotechnical Special Publication No. 40), (1994), pp. 77
Olaniyan,: Internal Journal of Civil & Environment Engineering IJCEE-IJENS Vol: 11 No: 06, (2011)
[17] Bell, F.G.: Engineering Geology 42, 223. (1996)

Experiment Study on Mechanical Performance of Shale Lightweight Aggregate Concrete Lin LI1,* ,a, Qing Wang 2, b, Yu Wang1, c, Zhaoyang Ding2，d 1School of Civil Engineering, Suqian College, Suqian China 2School of Materials Science and Engineering, Shenyang Jianzhu University,Shenyang China all86268555@163.com, bwangqingmxy@126.com, cwy2103541@163.com, dsmallnew69@126.com Keywords: coarse shale aggregates; lightweight aggregate concrete(LWAC); microanalysis; mechanical performance Abstract.
High performance lightweight aggregate concrete is a kind of lightweight environment-protected building material with high strength, good workability, volume stability and durability, which is widely used in large scale engineering and some important engineering.
High performance lightweight aggregate concrete has great superiorities in large scale engineering such as high buildings, bridges and some important engineering projects.
Journal of Shenyang Architectural and Civil Engineering Institute, 2005, 5(21):511-514

Review on shear Connectors in Timber-Concrete Composite Beams Liping Chen1,a, Guojing He2,b and Hongzhi Xiao3,c 1School of Civil Engineering and Mechanics, Central South University of Forestry & Technology, Changsha 410004, Hunan, China 2School of Civil Engineering and Mechanics, Central South University of Forestry & Technology, Changsha 410004, Hunan, China 3School of Civil Engineering and Mechanics, Central South University of Forestry & Technology, Changsha 410004, Hunan, China aaed2011@yeah.net, baed2008@yeah.net, c554206583@qq.com Keywords: timber-concrete composite structure; shear connectors; composite beam Abstract.
Conclusion At present, the above introduced four kinds of connection types are widely used in engineering.
IUFRO S5. 02 Timber Engineering Conference,Nancy,France,2002：383-393
Journal of Structural Engineering, 2007, 1 33(5):720-727
I: Interlayer Connection Specimen Tests[J].Journal of Structural Engineering, 2010, 136(10): 1236-1245.

Research of Seismic Design Method of RC Frame Structure Retrofitted by FRP Dianzhong Yang1,a, Yaping Peng2,b* and Qun Xie1,c 1School of Civil Engineering and Architecture, University of Jinan,Jinan, China 2College of Urban Construction and Safety Engineering,Shanghai Institute of technology,Shanghai, China aydzujn@126.com, b*pengyp517@126.com, ccea_xieq@ujn.edu.cn Keywords: FRP; RC frame structure; seismic retrofitting; ductility; design process Abstract.
Combined with recently research achievements in this field, this paper develops a new seismic design processes and methods on FRP retrofitting RC frame structure for practical engineering reference, it will promote FRP further developed and wide engineering use.
As for practical engineering, the column shear capacity decline is mainly due to the plastic hinge formed in the end, and the shear bearing capacity of concrete is reduced.
In practical engineering, designers should flexibly deal with the problems with no definite stipulation, combining with standard and engineering experience.
(In Chinese) [4] Yang Wei, Gang Wu, Zhishen Wu, Dongsheng Gu, and Zhengxing Guo, “Prediction Methods of Failure Modes for FRP-reinforced RC Rectangular Columns,” China Civil Engineering Journal, vol. 43, 2010, pp. 423-428.

Analysis and Research about the Influence of Round Gravel Soil Distribution Situation on Water Stop Curtain Construction Chunlei Fenga,Dong Wangb and Jie Chenc Faculty of Civil and Architectural Engineering, Kunming University of Science and Technology, Yunnan650500, China adtx_good@163.com,bedit-me@163.com,c451629371@qq.com Keywords: Round Gravel Soil, Screening, Grain Size Distribution, Groundwater.
According to the particle size distribution curve of the continuity characteristics and the grading of the curve shape,then it can directly judge the uniformity of particle size, particle distribution and grain size distribution to evaluate the engineering properties of soil.
Engineering geological data and experimental research Engineering geological data.
References [1] Shude Zhao,Hongjian Liao.Civil engineering geological[M]In Chinese.Science Press,Beijing, 2009:109-110
[2]Minghua Zhao.Soil mechanics and foundation engineering[M]In Chinese.Wuhan University of Technology Press,Wuhan,2009:16-19

School of Civil Engineering, Central South University, Changsha, China aqinqitao0530@126.com, bcsuhpc@163.com Keywords: composite ultra-fine fly ash, pavement concrete, crack resistance, replacement Abstract: The crack resistance evaluation indexes of concrete were chosen, which were used to study the influence of ultra-fine fly ash on the crack resistance of pavement concrete.
Introduction Concrete is the main material of Civil and Architectural Engineering, its greatest weakness is easy to crack.
There is a good significance for engineering practice.
Effect of Mineral Admixture on Early Age Cracking of Concrete [J] Journal of Architecture and Civil Engineering, 2006, 23(4):20-23 [5]Gao Ying-li, Zhou Shi-qiong, Ma Bao-guo, Early Autogenous Shrinkage and Dry Shrinkage of Cement Based Materials Containing Ultra-fine Fly Ash.
Journal of Shenzhen University (Science & Engineering), 2008, 25(1):30-34

Magazine of Civil Engineering. 2013, №5, 69 p
Magazine of Civil Engineering, 2013, №4, 13 p
Permafrost engineering: General and Applied.
Geotechnical engineering.
Magazine of Civil Engineering, 2012, №9, 31 p.

Hemp Fiber Reinforced Geopolymer Composites: Effects of NaOH Concentration on Fiber Pre-Treatment Process Phattharachai Maichin1,a, Teewara Suwan2,b,*, Peerapong Jitsangiam2,c and Prinya Chindaprasirt3,d 1Department of Civil Engineering, Faculty of Engineering, Chiang Mai University, Chiang Mai, Thailand 2Center of Excellence in Natural Disaster Management (CENDIM), Department of Civil Engineering, Faculty of Engineering, Chiang Mai University, Thailand 3Sustainable Infrastructure Research and Development Center, Department of Civil Engineering, Faculty of Engineering, Khon Kaen University, Thailand aphattharachai_mai@cmu.ac.th, bteewara.s@cmu.ac.th, cpeerapong@eng.cmu.ac.th, dprinya@kku.ac.th Keywords: Geopolymer, Hemp fiber, NaOH concentration, Natural fiber, Treatment process Abstract.
Acknowledgments The authors would like to express gratitude to Faculty of Engineering, Chiang Mai University (CMU), Thailand for all supports as well as the Highland Research and Development Institute (HRDI), Chiang Mai, Thailand for arranging the hemp fibers in this study.