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Online since: August 2013
Authors: Sheng Li Fan, Ming Ouyang, Hua Xiao
The Research on Using Ordinary Portland Cement to
Prepare Anti-corrosive Concrete Under Frigid
Saline-alkaline Geological Condition
Hua Xiao1, a, Shengli Fan2,b and Ming Ouyang 3,c
1Urban Design Institute of Wu Han University, Wuhan, Hubei, 430000, China
2,3China Construction Third Engineering Bureau Co.
Ltd. , Hubei, 430000, China axiaohuadxx@sina.com, b95705420@qq.com, couyangriwen@163.com Key words: saline-alkali soil; ordinary Portland cement; frost resisting and anti-corrosive concrete with strong endurance Abstract.
Selection of the Constituent Materials According to the above analysis, we select the constituent materials needed to prepare frost resistant and anti-corrosive concrete with strong endurance by using ordinary Portland cement.
The performance of each constituent material is as follows.
We select engineering application mixture proportion to prepare the concrete test piece and detect 56 days’ charge passed of the concrete to evaluate the chloridion’s permeability resistant performance.
Ltd. , Hubei, 430000, China axiaohuadxx@sina.com, b95705420@qq.com, couyangriwen@163.com Key words: saline-alkali soil; ordinary Portland cement; frost resisting and anti-corrosive concrete with strong endurance Abstract.
Selection of the Constituent Materials According to the above analysis, we select the constituent materials needed to prepare frost resistant and anti-corrosive concrete with strong endurance by using ordinary Portland cement.
The performance of each constituent material is as follows.
We select engineering application mixture proportion to prepare the concrete test piece and detect 56 days’ charge passed of the concrete to evaluate the chloridion’s permeability resistant performance.
Online since: March 2020
Authors: Vyacheslav V. Maksarov, Alexander E. Efimov, Taras S. Golikov
Introduction
Currently, titanium Ti alloys are widely used in many engineering industries.
It is worth noting that the solution to this problem through the use of cutting fluid, which are aerosols of water, has been widely used in mechanical engineering.
Advances in Engineering Research, vol. 177, pp. 213–217, 2018.
“Engineering and Earth Sciences: Applied and Fundamental Research” (ISEES 2018)
Martyushev et al., Numerical simulation of temperature field in steel under action of electron beam heating Source, Key Engineer.
It is worth noting that the solution to this problem through the use of cutting fluid, which are aerosols of water, has been widely used in mechanical engineering.
Advances in Engineering Research, vol. 177, pp. 213–217, 2018.
“Engineering and Earth Sciences: Applied and Fundamental Research” (ISEES 2018)
Martyushev et al., Numerical simulation of temperature field in steel under action of electron beam heating Source, Key Engineer.
Online since: September 2013
Authors: Jian Long Zheng, Bo Ming Tang, Hong Zhou Zhu, Yong Sheng Yao
School of Civil Engineering &Architecture,Chongqing Jiaotong University,Chongqing 400074,China
ayaoyongsheng23@163.com,btbm@netease.com,czjl@csust.edu.cn, dzhuhongzhouchina@126.com
Keywords: volcanic rock; density; porosity; velocity; resistivity
Abstract.
2564 59 4.93 9.96 512.4 2.70 10.71 2941 2326 60 4.93 9.93 473.1 2.50 17.31 3125 2439 61 4.93 9.92 415.0 2.19 27.40 2632 2174 62 4.93 9.95 476.0 2.51 16.97 2326 2128 63 4.94 9.93 473.8 2.49 17.53 2564 2222 64 4.93 9.94 512.7 2.70 10.48 3125 2564 65 4.93 9.87 444.0 2.36 21.93 2778 2326 66 4.93 9.91 507.6 2.68 11.10 2941 2564 67 4.93 9.94 410.8 2.17 28.27 2941 2439 68 4.93 9.9 498.0 2.64 12.70 2857 2439 69 4.93 9.96 428.9 2.26 25.26 2632 2222 70 4.93 9.94 500.6 2.64 12.60 3125 2564 Porosity, saturated water absorption and moisture test Porosity test.The porosity of rock including open-porosity and close-porosity, the sum of open- porosity and close-porosity called total porosity.Of course,the porosity of rock had considerable influence for their physical properties.According to the gross volume of rock and the particle density(in this paper,the range of particle density is 2.44 g/cm3 ~ 3.02 g/cm3,considered the calculation did not appear negative and the safety of engineering
Fig.4 The velocity of P-wave and S-wave under the condition of different porosities Resistivity Test At the exploration phase of the road construction in the cavity area of lava, needed to use the technology of geophysical for exploration, and high-density electrical method as an effective mean, also widely used in the exploration of highway engineering.
Acknowledgements This work was financially supported by the Project of the Ministry of Transport of the People’s Repulic of China(2011318346770), National High Technology Research and Development Program of China(2012AA112504), National Natural Science Foundation of China(51108048), National Basic Research Program of China(2011CB411910), the Open Foundation of the Key Laboratory of Road Structure & Material of Ministry of Communications(Changsha) (kfj110202) ,Project of the Ministry of Transport of the People’s Repulic of China(2009318000062) and Project of the Ministry of Transport of the People’s Repulic of China (2009-319-825-090).
Highway .2012.10 [4] A.A.Al-Harthi,R.M.Al-Amri,W.M.Shehata.The porosity and engineering properties of vesicular basalt in Saudi Arabia[J].Engineering Geology 54(1999)313-320 [5] Plank T,Langmuir C H.
2564 59 4.93 9.96 512.4 2.70 10.71 2941 2326 60 4.93 9.93 473.1 2.50 17.31 3125 2439 61 4.93 9.92 415.0 2.19 27.40 2632 2174 62 4.93 9.95 476.0 2.51 16.97 2326 2128 63 4.94 9.93 473.8 2.49 17.53 2564 2222 64 4.93 9.94 512.7 2.70 10.48 3125 2564 65 4.93 9.87 444.0 2.36 21.93 2778 2326 66 4.93 9.91 507.6 2.68 11.10 2941 2564 67 4.93 9.94 410.8 2.17 28.27 2941 2439 68 4.93 9.9 498.0 2.64 12.70 2857 2439 69 4.93 9.96 428.9 2.26 25.26 2632 2222 70 4.93 9.94 500.6 2.64 12.60 3125 2564 Porosity, saturated water absorption and moisture test Porosity test.The porosity of rock including open-porosity and close-porosity, the sum of open- porosity and close-porosity called total porosity.Of course,the porosity of rock had considerable influence for their physical properties.According to the gross volume of rock and the particle density(in this paper,the range of particle density is 2.44 g/cm3 ~ 3.02 g/cm3,considered the calculation did not appear negative and the safety of engineering
Fig.4 The velocity of P-wave and S-wave under the condition of different porosities Resistivity Test At the exploration phase of the road construction in the cavity area of lava, needed to use the technology of geophysical for exploration, and high-density electrical method as an effective mean, also widely used in the exploration of highway engineering.
Acknowledgements This work was financially supported by the Project of the Ministry of Transport of the People’s Repulic of China(2011318346770), National High Technology Research and Development Program of China(2012AA112504), National Natural Science Foundation of China(51108048), National Basic Research Program of China(2011CB411910), the Open Foundation of the Key Laboratory of Road Structure & Material of Ministry of Communications(Changsha) (kfj110202) ,Project of the Ministry of Transport of the People’s Repulic of China(2009318000062) and Project of the Ministry of Transport of the People’s Repulic of China (2009-319-825-090).
Highway .2012.10 [4] A.A.Al-Harthi,R.M.Al-Amri,W.M.Shehata.The porosity and engineering properties of vesicular basalt in Saudi Arabia[J].Engineering Geology 54(1999)313-320 [5] Plank T,Langmuir C H.
Online since: July 2013
Authors: Marco Giglio, Andrea Manes, Claudio Sbarufatti
Firstly, the material parameters inside NASGRO equation have been treated stochastically, according to material property statistical definition, as found in [12].
Focusing on material properties, it might happen that the monitored crack propagation on the considered specimen undergoes a trend which is characterized by a very low probability according to the prior knowledge on material properties (as confirmed in Fig. 2.a).
Surely, the optimization of the damage characterization algorithms is the key aspect to be considered to obtain a reliable prognosis, though particle filter can help mitigating the effect of outlier measures because of the limits imposed by the DSS boundaries.
Manes, Crack propagation on helicopter panel: Experimental test and analysis, Engineering Fracture Mechanics, 75 (2008) 866–879
Goel, The statistical nature of fatigue crack propagation, Technical report AFFDL-TR-78-43 (1978), School of Mechanical Engineering, Purdue University
Focusing on material properties, it might happen that the monitored crack propagation on the considered specimen undergoes a trend which is characterized by a very low probability according to the prior knowledge on material properties (as confirmed in Fig. 2.a).
Surely, the optimization of the damage characterization algorithms is the key aspect to be considered to obtain a reliable prognosis, though particle filter can help mitigating the effect of outlier measures because of the limits imposed by the DSS boundaries.
Manes, Crack propagation on helicopter panel: Experimental test and analysis, Engineering Fracture Mechanics, 75 (2008) 866–879
Goel, The statistical nature of fatigue crack propagation, Technical report AFFDL-TR-78-43 (1978), School of Mechanical Engineering, Purdue University
Online since: September 2013
Authors: Yu Xiang Liu, Zhi Feng Liu, Yan Xia
An Alignment Control Method of Continuous Beam Bridge
ZhiFeng Liu1,a, YuXiang Liu2,b and Yan Xia3,c
1Department of Mechanics and Civil Engineering, Jinan University, Guangzhou 510632, China
2Key Laboratory of Disaster Forecast and Control in Engineering, Ministry of Education of China, Guangzhou 510632, China
3Department of Mechanics and Civil Engineering, Jinan University, Guangzhou 510632, China
aliuzhifengjnu@126.com, btliuyx@jnu.edu.cn(corresponding author), cxiayan852011@163.com
Keywords: Alignment of continuous beam bridge; Quartic polynomial function method; Construction pre-camber
Abstract: By directing at the current situation of excessive midspan deflection in prestressed concrete continuous bridge during the past few years, this paper raised a calculation method to elevate the pre-camber.
That is: - empirical pre-camber 2.1 Finite element model 1 This paper set a certain bridge as the engineering background, and superstructure of the main bridge was a continuous beam with variable cross-section in single box and chamber of (55+902+55) m.Midas Civil was adopted to establish finite element bridge model and conduct forward analysis from the beginning of the construction to second-phase dead load.
Fig. 4 and Fig. 5 present the change situation of roof stress and baseboard stress of key cross-sections during the construction process under two models.
Bridge Engineering Control [M].
Bridge Engineering.
That is: - empirical pre-camber 2.1 Finite element model 1 This paper set a certain bridge as the engineering background, and superstructure of the main bridge was a continuous beam with variable cross-section in single box and chamber of (55+902+55) m.Midas Civil was adopted to establish finite element bridge model and conduct forward analysis from the beginning of the construction to second-phase dead load.
Fig. 4 and Fig. 5 present the change situation of roof stress and baseboard stress of key cross-sections during the construction process under two models.
Bridge Engineering Control [M].
Bridge Engineering.
Online since: April 2016
Authors: Reza Saifi, Afshin Shaygani, Mahdi Sani, Mohammad Said Saidi
CFD Aided Procedure for Optimizing Electrical Mobility Spectrometer
Reza Saifi1, a, Afshin Shaygani1,b, Mahdi Sani1,c , Mohammad Said Saidi2,d
1School of Engineering and Science, Sharif University of Technology, Kish Campus, Iran
2Department of Mechanical Engineering, Sharif University of Technology, Tehran, Iran
areza.saifi83@gmail.com, b shayganiafshin@gmail.com, c msani@sharif.edu, d mssaidi@sharif.edu
Keywords: Aerosol; Electrical Mobility; Particle Charging; Electrical Mobility; Spectrometer (EMS); Corona Charger.
Aerosol measurement is used in a variety of fields such as nanotechnology, materials science, pollution monitoring, air quality measurements, combustion and engine exhaust analysis, inhalation toxicology, and medical studies.
Additionally, it is the only material independent and relatively efficient method.
These are the key factors in a well-designed charger.
Aerosol measurement is used in a variety of fields such as nanotechnology, materials science, pollution monitoring, air quality measurements, combustion and engine exhaust analysis, inhalation toxicology, and medical studies.
Additionally, it is the only material independent and relatively efficient method.
These are the key factors in a well-designed charger.
Online since: February 2012
Authors: Hong Zhi Yan, Xing Zu Ming, Guo Qi He, Xiang Han Kong
When grinding spiral bevel gear, gear materials, grinding fluid,etc,was determinate, and these factors could be thought of as a normal level.
Predicting the occurrence of grind hardening in cubic boron nitride grinding of crankshaft steel[J].Proceedings of the Institution of Mechanical Engineers, Part B:Journal of Engineering Manufacture, 2004, 218(10):1339-1356
Investigation of removal rate and grinding ratio of PCD material based on orthogonal experiment[J].
Diamond and Abrasives Engineering , 2007,159(3):72-75
Computer-aided manufacturing of spiral bevel and hypoid gears by applying optimization techniques[J].Journal of Materials Processing Technology,2001,114:22-35
Predicting the occurrence of grind hardening in cubic boron nitride grinding of crankshaft steel[J].Proceedings of the Institution of Mechanical Engineers, Part B:Journal of Engineering Manufacture, 2004, 218(10):1339-1356
Investigation of removal rate and grinding ratio of PCD material based on orthogonal experiment[J].
Diamond and Abrasives Engineering , 2007,159(3):72-75
Computer-aided manufacturing of spiral bevel and hypoid gears by applying optimization techniques[J].Journal of Materials Processing Technology,2001,114:22-35
Online since: July 2014
Authors: M. Krishnan, A. Murugesan, T.R. Chinnusamy, T. Karthikeyan
Rangasamy College of Technology, Tiruchengode - 637 215, Tamil Nadu, India
2Arulmurugan College of Engineering, Karvazhi road, Thennilai - 639 206, Tamil Nadu, India
4Department of Mechatronics Engineering, K.
[6] Kendra E.Moore, Surendra M.Gupta, “Stochastic colored Petri net models of flexible manufacturing systems: material handling systems and machining”, Computers and Industrial Engineering, vol.29, No.1-4, pp.333-337, 1995
Petri net modeling and heuristic search”, Computers and Industrial Engineering 44, 527-543, 2003
[11] Jongkun Lee, Ouajdi Korbaa, “Modeling and scheduling of ratio-driven FMS using unfolding time Petri nets”, Computers & Industrial Engineering 46, 639–653, 2004
Computer and Industrial Engineering 44(4):545–566, 2003
[6] Kendra E.Moore, Surendra M.Gupta, “Stochastic colored Petri net models of flexible manufacturing systems: material handling systems and machining”, Computers and Industrial Engineering, vol.29, No.1-4, pp.333-337, 1995
Petri net modeling and heuristic search”, Computers and Industrial Engineering 44, 527-543, 2003
[11] Jongkun Lee, Ouajdi Korbaa, “Modeling and scheduling of ratio-driven FMS using unfolding time Petri nets”, Computers & Industrial Engineering 46, 639–653, 2004
Computer and Industrial Engineering 44(4):545–566, 2003
Online since: October 2011
Authors: Bing Guo, Xiao Tong Peng
Elasto-plastic Properties of Panel Zones and Effects on
Story Drift of Steel Frames
Bing Guo1, a, Xiaotong Peng2, b
1 College of Civil Engineering, Shandong Jianzhu University, Jinan 250101, China
2 College of Civil Engineering, University of Jinan, Jinan 250022, China
a email: sdgb123@163.com, b email: pengxito@163.com
Keywords: panel zone, strength, stiffness, story drift, steel frames.
The above formula is very simple with only two parameters, volume of PZs and strength of the steel, and the accuracy can absolutely satisfy engineering design.
Popov: Journal of Structural Engineering, ASCE, Vol. 116 (1990), p. 3285 [5] B.
Liu: Journal of Structural Engineering, ASCE, Vol. 132 (2006), p. 1352 [7] E.
Chang: Engineering Structures, Vol. 20 (1998), p. 1030
The above formula is very simple with only two parameters, volume of PZs and strength of the steel, and the accuracy can absolutely satisfy engineering design.
Popov: Journal of Structural Engineering, ASCE, Vol. 116 (1990), p. 3285 [5] B.
Liu: Journal of Structural Engineering, ASCE, Vol. 132 (2006), p. 1352 [7] E.
Chang: Engineering Structures, Vol. 20 (1998), p. 1030
Online since: December 2014
Authors: Ai Jun Shao, Ying Liu, Lin Lin Chai, Qiang Wang, Song Yang, Shi Wen Wang
Utilization of Coal Mine Water
AiJun Shao1,a,ShiWen Wang2,b,LinLIn Chai3,c,Qiang Wang4,d,Ying Liu5,e,
Song Yang6,f
1Shijiazhuang University of Economics 136 East Huaian Road Shijiazhuang, China
2Shijiazhuang University of Economics 136 East Huaian Road Shijiazhuang, China
3Shijiazhuang University of Economics 136 East Huaian Road Shijiazhuang, China
4Shijiazhuang University of Economics 136 East Huaian Road Shijiazhuang, China
5Shijiazhuang University of Economics 136 East Huaian Road Shijiazhuang, China
6Shijiazhuang University of Economics 136 East Huaian Road Shijiazhuang, China
aShaoaijun@sohu.com, bwsw84946108@163.com, cClin329@163.com, d18333150995@163.com, eritarita990@hotmail.com, fys15175167780@sina.com
Key words: mine water, purification, turbidity
Abstract: China is a big country of coal production, in the coal mining process, the great massive mine drainage has caused not only the waste of groundwater resource, but also environmental pollution.
The filtration basin can make the water clarify mainly depending on the filtration materials, which we commonly used, including quartz sand and anthracite grain.
Then the water arrives in the reaction basin to grow gradually into the flocculent deposit material (flocculating constituent or vitriol flower).
Hydrogeology and Engineering Geology, 1: 46-48.
The filtration basin can make the water clarify mainly depending on the filtration materials, which we commonly used, including quartz sand and anthracite grain.
Then the water arrives in the reaction basin to grow gradually into the flocculent deposit material (flocculating constituent or vitriol flower).
Hydrogeology and Engineering Geology, 1: 46-48.