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Large Size Static Pressure Box Airflow Distribution Guodan Liu,Xinxin Wang,Xuan Wang, Feng Qi,Gang Wang , Songtao Hu Institute of Environmental&Municipal Engineering, Qingdao Technological University, Qingdao,266033, China E-mail: xinxin9882@126.com Keywords: Large size static pressure box; floor air supply systems; the way of ventilation; turbulent model; Abstract.
Static pressure box space size bigger, civil structure is complex, leading to the gas flow distribution in the complex, if processing is bad to can affect the uniformity of air supply[2].
The air distribution air conditioning system, using complex structure punching plenum ventilation engineering case is not much, at present there is no Uniform design codes and standards, and static pressure box airflow organization quality will directly affect the audience area ambient air quality and comfort, so if you can grasp accurately the static pressure and velocity distribution situation, will be to improve the air quality audience and comfort play an important role.

Département Génie des Procédés, Faculté des Sciences et de la Technologie, Abdelhamid Ibn Badis University, Bp 227 Mostaganem, Algeria. 2Mohamed Boudiaf Sciences and Technology University, 31000 Oran, Algeria. 3Riga Technical University, Faculty of Civil Engineering, Department of Water Science and Technology, Azenes 16/20-263, Riga, LV-1048, Latvia anora.noureddine27@gmail.com, bsamia.benhammadi27@gmail.com, ckarafouad@yahoo.fr, dhakim.aguedal@gmail.com, eiddouabdelkader@yahoo.fr, ftalis.juhna@rtu.lv Keywords: Pseudomonas aeruginosa, hexavalent chromium, culture broth, enzymatic reduction Abstract.
Ugwu, Mud Rotary Drilling in Southern Nigeria: Potential Adverse Effects of its By-Products on the Environment, International Journal of Water resources and Environmental Engineering. 5 (2013) 262-271

Optimizing Concrete Mix Design for Application in 3D Printing Technology for the Construction Industry Refilwe Lediga1,a, Deon Kruger1,b 1Department of Civil Engineering Science, University of Johannesburg, South Africa arefled@gmail.com, bdkruger@uj.ac.za Keywords: 3D concrete printing, optimized concrete mix design, construction industry, extruder, concrete pump, computerised gantry system Abstract.
[2] Gosselin, C., Duballet, R., Roux, P., Gaudillière, N., Dirrenberger, J. and Morel, P. (2016) ‘Large-scale 3D printing of ultra-high performance concrete – a new processing route for architects and builders’, Materials & Design, 100, pp. 102–109. doi: 10.1016/j.matdes. 2016.03.097 [3] Wu, P., Wang, J. and Wang, X. (2016) ‘A critical review of the use of 3-D printing in the construction industry’, Automation in Construction, 68, pp. 21–31. doi: 10.1016/j.autcon. 2016.04.005 [4] Buswell, R.A., Soar, R.C., Gibb, A.G.F. and Thorpe, A. (2007) ‘Freeform construction: Mega-scale rapid manufacturing for construction’, Automation in Construction, 16(2), pp. 224–231. doi: 10.1016/j.autcon.2006.05.002 [5] Khoshnevis, B., Hwang, D., Yao, K.T. and Yeh, Z. (2006) ‘Mega-scale fabrication by contour crafting’, International Journal of Industrial and Systems Engineering, 1(3), p. 301. doi: 10.1504/ijise.2006.009791 [6] Berman, B. (2012) ‘3-D printing: The new industrial revolution’,Business Horizons

Experiments and Optimization of Mix Proportions for Cement Paste Backfill Materials with Extra-Fine Unclassified Tailings HUANG MingQing1, a, LIU XiaoHui1, b*, CHENG HaiYong1, c 1School of Civil and Resources Engineering, University of Science and Technology Beijing, Beijing 100083, P.
According to in-situ backfilling engineering in China, the 28-day UCS is safe to set at 0.5 MPa.

Jasim2,b 1,2Department of Civil Engineering, College of Engineering, University of Wasit, Iraq amsewan@uowasit.edu.iq, bnjasim@uowasit.edu.iq Keywords: settling column, settling efficency, settling velocity, discrete and flocculent Settling.
This device is manufactured in the laboratories at University of Wasit, college of engineering.
General Introduction The experiments were carried out in the sanitary engineering laboratory at University of Wasit, AL-Kut.
It is chosen to not be matching with other devises color; they are already existed in the sanitary lab of the college of engineering.
Acknowledgements We thank the Wasit University, College of Engineering, to give us this opportunity to work on this project in their laboratories (water engineering and sanitary laboratories).

Introduction Increased awareness of the economic and social effects of aging, deterioration and extreme events on civil infrastructure has been accompanied by recognition of the need for advanced damage detection and structural health monitoring techniques.
Experiment setup and results For testing purpose we have prepared two engineering plastic samples.
According to Fig. 12, the damage in the engineering plastic sample can be well distinguished by principal component analysis.
The engineering plastic slab. 5mm 40mm 40mm 40mm 14mm 14mm 3mm 3mm 2mm 3mm 2mm 3mm 3mm 3mm Fig. 11.
Capacitance reductions (the engineering plastic slab with 4 slots).

Thus, the asymmetric design should be avoided in practical engineering.
The 14th World Conference on Earthquake Engineering (14WCEE), Beijing, 2008, 0501-055
Journal of Earthquake Engineering and Engineering Vibration, Vol.32(3)( 2007), p.59-64. ( in Chinese ) [8] Feifei Sun, Guiran Liu.
Journal of Structural Engineering, Vol.123 (11)(1997), p.1487-1495
Journal of Structural Engineering, Vol.131(6)(2005), p.878-889.

While sometimes being belittled, the importance of visual inspection in general and especially for the assessment of engineering structures has been highlighted, among others, by [9].
Construction Materials for Civil Engineering Projects, ASCE, New York, 1986, pp. 10-19

Haroun1,e 1Department of Construction and Architectural Engineering, The American University in Cairo, Egypt amamooty@aucegypt.edu, bahmed_hendam@hotmail.com, cezzat@aucegypt.edu, cmnagiba@aucegypt.edu, cmharoun@aucegypt.edu Keywords: sandwich panels, ferrocement, autoclaved aerated concrete blocks, in-plane compressive strength, bending test.
E.H., Abou Zeid, M.N., Shaheen, Y.B., and Gaafar, H.M., Behavior of Ferrocement Panels Under Axial and Flexural Loadings, Proceedings of the 33rd CSCE Annual Conference, The Canadian Society for Civil Engineering, Toronto, Ontario, Canada, June (2005)

Fuzzy Comprehensive Evaluation and Empirical Study of BT Mode Transaction Structure Scheme Design for College Campus Constructing Chuanqin Yao 1, a, Chao Wang1,b and Haibin Ma1,c 1 Department of Civil Engineering and Architecture, Anhui University of science &technology, Huainan, Anhui,, 232001, China achqyao@aust.edu.cn, b59948009@QQ.com, cmahaibin25@163.com Keywords: University Campus, BT Mode, Transaction Structure Scheme Design, Fuzzy Comprehensive Evaluation Abstract.
The investment capital of BT project usually includes engineering cost and prophase cost.