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A review on investigation progress and applications of their phase transition temperature control and adjustment was made in this paper, which is of important reference and practical value for understanding and predominating the investigation and engineering applications on their phase transition temperature control and adjustment.
As thermal energy storage technique is widely used as an important means to harmonize supply and demand contradiction, improve energy transformation efficiency during the process of thermal energy exploitation and utilizations, and it has been applied in the fields such as agricultural greenhouses, "peak load shifting" of electric power, recovery and utilizations of industrial afterheat or waste heat, heating in industrial and civil buildings, air conditioning etc, and has gradually become great important research field in the world[1, 2].
However, this means not only needs to have quite good applicability, but also their mixing proportion needs to be confirmed through many experiments, in this way the investigative cost and devotion are extremely high, and it is difficult to realize in the practical engineering applications.
Vol.32 (2007), p.1206 [2] X.Q.Zhu, Y.F.Yang, S.L.Li, et al: Chemical Engineering (in Chinese).
Energy Conversion and Management, Vol.46 (2005), p.1523 [9] H.L.Wang, Z.R.Zou, H.W.Chen, et al: Journal of Agricultural Engineering (in Chinese), Vol. 24 (2008), p.304 [10] B.Zalba, J.M.Marín, L.F.Cabeza, et al: Applied Thermal Engineering, Vol. 23 (2003), p251 [11] H.Ye, J.Wang, S.Y.Zhuang, et al: Acta Energiae Solaris Sinica , Vol. 25(2004), p.651 [12] A.Laouadi and M.Lacroix: International Journal of Heat Mass Transfer, Vol.42 (1999), p.275 [13] K.P.Liu, Y.P.Zhang, X.Xu, et al: Energy and Buildings (in Chinese), Vol.37 (2005), p.215 [14] D.Zhang, M.M.Zhou, K.R.Wu, et al: Journal of Building Materials (in Chinese), Vol.6 (2003), p.374 [15] Y.S.Yang, F.Q.Dong and S.Y.Gan.

Research on the Permeability of Concrete under the High Water Pressure Binghua Zhao 1, a, Shiping Zhang 1,b 1 Department of Architecture Civil Engineering, Nanjing Institute of Technology ,Nanjing,China azhbh@njit.edu.cn, bzhangshiping1982@gmail.com Keywords: GeoStudio；Concrete；Seepage；numerical simulation Abstract.
Seepage is important influence factors of degradation and instability to the water or under water concrete structure, it is also the difficult point in geotechnical engineering research.Through the concrete seepage experiment，combined with the Seep/W module of GeoStudio software，simulation of unsteady seepage of concrete，it was obtained that the seepage field under the action of a variable water head in 24 hr,And the results were compared with laboratory data，For further research on concrete permeability structure in practical engineering, foundation stability and durability.
So the impacts of seepage should be taken into consideration with seepage calculation and control in engineering calculation and stability evaluation.
It shows that SEEP/W model is practical and can be used to simulate the seepage process of concrete structures in real engineering projects, thus offering a convenient and rapid method for calculations that involve internal seepage of concrete.
References [1] KaiSheng Lin,ZongLi Li: Hydro-Science and Engineering, Vol.2(2010), p. 51-55

Numerical Modeling of Granular Assembly Using Discrete Element Method Xueliang Zhao 1, a 1School of Civil Engineering, Southeast University, Nanjing, China, 210096 axueliang_zhao@yahoo.com.cn Keywords: granular material, numerical modeling, discrete element method, microscale analysis Abstract.
Acknowledgement Support by the North Carolina State University, Department of Civil, Construction, and Environmental Engineering is gratefully acknowledged References [1] J.P Bardet and J.A, Proubet: Geotechnique. 41(4) (1991), p599-613 [2] P.A.Cundall and O.D.L.Strack: Geotechnique. 29(1) (1979), p47-65
Bray: Engineering Computations, 21(2-4) (2004), p278-303

An Improved Finite Beam Element Method for Calculating Lateral Displacements of Piles Subjected to Inclined and Eccentric Loads Minghui Yang1,a, Bifeng Ou2,b and Shangwu Lu 2,c 1College of Civil Engineering, Hunan University, Changsha, Hunan, 410082, China 2 Changsha-Xiangtan Expressway Co., Changsha, Hunan, 410209, China a yamih@126.com, b oubifeng@163.com, c lushw@126.com Keywords: Pile, beam element method, Model test, Eccentric and inclined loads, P-Δ effect.
Introduction Pile foundations play an important role in civil engineering, they have been used frequently to support complex loads for a wide variety of structural applications, including axial loads, lateral loads and moments caused by the eccentricity of the loads.
References [1] Hsiung, Y., and Chen, Y: Simplified method for analyzing laterally loaded single piles in clays., ASCE, Journal of Geotechnical and Geoenvironmental Engineering, (1997) 123 (11), 1018-29

Greening of Concrete Industry by Incorporating Gypsum-Based Industrial Wastes as Supplementary Cementitious Materials Ionut Ovidiu TOMA1,a, Daniel COVATARIU1,b, Ana Maria TOMA1,c, George TARANU1,d and Mihai BUDESCU1,e 1Technical University “Gheorghe Asachi” of Iasi, Faculty of Civil Engineering and Building Services, no. 43rd, Prof.dr.doc.
Even though the values are lower compared to the reference mix, they are still considered to be very good for civil engineering structures.
Budescu, Influence of cement and sand type on the strength characteristics of mortars with various contents of green binder, Procedia Engineering, 21 (2011) 196-203

Multi-criteria Optimization and its Application to Earthwork Processes Lucia Paulovičová1,a* 1Slovak University of Technology in Bratislava, Faculty of Civil Engineering, Bratislava, Slovakia axpaulovicoval@stuba.sk Keywords: Excavators, multi-criteria methods, optimization, earthwork machines.
Recently, more authors are interested in the application of AHP (Analytical Hierarchy Process) in the area of civil engineering [1,4] or fuzzy set theory.
In: Journal of Construction Engineering and Management, vol. 131, no. 12, 2005, pp. 1263-1273

Time Series Forecasting of Tunnel Surrounding Rock Displacement MAO Guangxiang 1, 2,a, XIA Yuanyou 1,b , LIU Lingwei 1,c 1 Institute of civil engineering and architecture, Wuhan University of Technology, Wuhan, 430070, China 2 Institute of civil engineering.
Control Engineering of China, 2003, (05)

Prediction Methods for Ultimate Strengths in GFRP Reinforced Concrete Bridge Deck Slabs Yu Zheng a, Yunfeng Pan b Department of Civil Engineering, Dongguan University of Technology, Dongguan, P.R.China azhengy@dgut.edu.cn, b yjs0820104463@dgut.edu.cn Keywords: GFRP; Compressive Membrane Action; Ultimate Strength; Bridge Deck Slab Abstract.
The shear punching equation of Kirkpatrick et al [[] Kirkpatrick J., Rankin G.I.B. and Long A.E., Strength evaluation of M-beam bridge deck slabs, Structural Engineer, 1984, 62b, No. 3, pp 60-68 ] for the punching capacity of slabs under a concentrated load was adapted for a less than rigid restraint system and can be described by: critical perimeter (1) This formula quantifies the shear punching strength in terms of the ‘equivalent’ area of reinforcement due to the combined effects of bending and arching.
A., and Bakht, B., Experimental investigation of the role of the strength of concrete deck slabs, Canadian Journal of Civil Engineering, 27(3), 2000, pp. 475-480. ] were used in this collection with the proposed punching capacity prediction method.

Fundamental Study of Energy Harvesting using Thermoelectric Effect on Concrete Structure in Road Jaejun Lee1,a,Daehun Kim 2,b, Seung-Tae Lee 3,c,and Jae-kyu Lim4,d*, 1,2Chonbuk National University, Jeonju, Republic of Korea 3Kunsan National University, Kunsan, Republic of Korea 4Korea Institute of Civil Engineering and Building Technology, Goyang, Republic of Korea alee2012@jbnu.ac.kr, bkidsmini@hanmail.net, cstlee@kunsan.ac.kr, d* jklim@kict.re.kr(Corresponding author), Keywords: Energy harvesting, Thermoelectric module, Thermal gradient Abstract.
In this paper, the energy harvesting area is an important research area in civil engineering because lots of research topics are remaining and creating in the future.
Thermoelectrics: a review of present and potential applications, Applied Thermal Engineering, Vol. 23, pp.913-935

Long-Term Development of Strength of Cement Paste with Fly Ash Ondřej ZOBAL1,2a * and Pavel PADEVĚT1,b 1Faculty of Civil Engineering, Czech Technical University in Prague, Thákurova 7/2077, Prague 6, 166 29, Czech Republic 2University Centre for Energy Efficient buildings, Czech Technical University in Prague, Třinecká 1024, 273 43 Buštěhrad, Czech Republic aondrej.zobal@fsv.cvut.cz, bpavel.padevet@fsv.cvut.cz Keywords: Cement; Fly Ash; HVFAC; compressive strength; tensile strength.
Acknowledgement This paper has been supported by the Faculty of Civil Engineering, Czech Technical University in Prague (TAČR project No.
Reiterman, Frost Resistance of Concrete Screed with the Fly Ash Addition, Key Engineering Materials 677 (2016) 80-85.