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The primary issue that arises during the execution and design of civil engineering applications that use concrete as a fundamental component is still its brittleness.
Recently, environmental issues and working on discovering and producing new construction materials that have lower effects on our environment, mostly called eco-friendly materials, have taken up vast space among civil engineering research.
Lee, Flowability and strength development characteristics of bottom ash based geopolymer, International Journal of Civil and Environmental Engineering, vol. 6, pp. 852-857, 2012
Thirugnanam, Behaviour of reinforced concrete beams with SIFCON at various locations in the beam, KSCE Journal of Civil Engineering, vol. 22, no. 1, pp. 161-166, 2017, doi: https://doi.org/10.1007/s12205-017-0498-9
Alwash, Effects of steel fibers geometry on the mechanical properties of SIFCON concrete, Civil Engineering Journal, vol. 6, no. 1, pp. 21-33, 2020, doi: https://doi.org/10.28991/cej-2020-03091450

Mechanical capacity analysis of large diameter prestressed concrete cylinder pipe(PCCP) Yuliang Wang 1,2,a, Yongqing Bi1,b,Xiaojie Zhou1,c 1School of Civil Engineering, Tianjin Institute of Urban Construction, Tianjin 300384,China. 2School of Civil Engineering，Tianjin University, Tianjin 300072,China.
Prestressed concrete cylinder pipe(PCCP) has been applied to oil, water conservancy and hydropower engineering and other fields as a kind of high quality composite pipe.
Introduction Recent years, with the maturity of prestressed concrete technology development, circular prestressed adapt to the pressure pipe structure of expertise has been used in oil, water conservancy and hydropower engineering and other areas.

The Instances of Highway Engineering Bidding Price Control Sujuan Zhang Civil Engineering School, Shandong Jiao Tong University, Jinan, Shandong, 250023, China Zhangsujuan2007@sina.com Keywords: The bidding price control; Bill of quantities; Instance Abstract.
Highway engineering tender price control is the maximum limit of the construction cost.
In this paper, the compilation process of bidding price control is given with practical examples of highway engineering.
Introduction Highway engineering bidding price control is the maximum limit of the construction cost.
[2] Xiaohuang Wu, E chuan Chen. he highway engineering quantity measurement guide.

Study on Equipment Central Retirement and Disposal Benefits Evaluation Based on Value Engineering Shen Ying1, a, Wang Dan2, a, Wang YuQuan1, a and Wu Junwei3, a 1 Academy of Armored Forces Engineering, Beijing, China 2 Naval Academy of Armament, Beijing, China 3 Airforce Logistics Military Traffic Ministry, Beijing, China a sheny312@sina.com Keywords: central retirement and disposal, disposal benefits, value engineering Abstract.
A Evaluation Method Fundamental When evaluating, it mainly the theory of value engineering in the paper, and evaluates the benefit cost ratio.
Value Engineering aims to improve value, namely economic effect.
A Solving Method For Forced Decision Method, it is an analytic procedure that makes functional importance degree as selecting an object of value engineering or evaluating function and concept, called as FD.
A, B, C, D, E, F and G represent separately test and evaluation, exhibition, military aid and arms trade, teaching and training, moving into civil, storage backup, and equipment remanufacturing, etc.

Engineering Standards of Wind Andrea Vranková 1,a and Milan Palko 2,b * 1,2 Slovak University of Technology in Bratislava, Faculty of Civil Engineering, Radlinskeho 11, 813 68 Bratislava, Slovak Republic axvrankovaa@stuba.sk, bmilan.palko@stuba.sk Keywords: Wind, atmospheric boundary layer, wind effects.
Introduction Engineering standard is an established norm or requirement in regard to technical system.
It is usually a formal document that establishes uniform engineering or technical criteria, methods, processes and practices.
As we discussed earlier Slovak engineering standards distinguish five surface categories.

Test Research on the Long-Term Consolidation Mechanism of Ultra-Soft Clay Aimin Liu1, a, Shuwang Yan2,b and Jingshuang Li3,c 1 School of Civil Engineering, Tianjin University, CCCC Tianjin Port Engineering Institute, Ltd., Key Laboratory of Port Geotechnical Engineering, Ministry of Communications, and Key Laboratory of Geotechnical Engineering of Tianjin, Tianjin, China. 2 School of Civil Engineering, Tianjin University, 92 Weijin Road, Nankai district, Tianjin, China. 3 CCCC Tianjin Port Engineering Institute, Ltd., Tianjin, China.
This phenomenon should draw much the attention in engineering practice.
References [1] Huifang Feng: Reinforcement method of ultra-soft foundation formed by fresh dredger filled mud, Port Engineering Technology, (5), 48-49 (2011).
(In Chinese) [3] Guoliang Ye, Shujun Guo, Yaoting Zhu: Analysis on engineering property of ultra soft soil, China Harbour Engineering, (5), 1-9 (2010).
(In Chinese) [4] Code for Soil Foundations of Port Engineering, JTS147-1: China Ministry of Communications, China Communications Press (2010).

A New Calculation Method for Cracking width of Beam with High Strength Rebar Chunmin Donga, Kedong Guob and Jiajia Sunc School of Civil Engineering, Henan Polytechnic University,Jiaozuo 454000, P.R.
Introduction With the application of high strength concrete and rebar in engineering practice, the flexural strength of reinforced concrete beam (RC beam) are improved, however the cracking width of RC beam is too large to satisfy the limit state of beam under normal service load.
Outline of Experiments In practical engineering, the slabs are generally cast with beams together to form T-shape beams.
Specially,the cracking width of RC beam LW4-A and LW4-B with ordinary strength rebar could not satisfy the limited requirement in Code, the main reason is that the actual concrete tension strength is, which is nearly concrete strength labeled as C45 in practice engineering.
[2] Zhou Jianming,Wang Tiao,Zhao Yong,Chen Fei,Gao Ying:CHINA CIVIL ENGINEERING JOURNAL, Vol.43(2010), p69-76, in chinese

Correlation Between Damage Indexes in Knee Bracing Frames Subjected to Earthquakes Kamran Faraji1, a, Mahmoud Miri2, b 1M.Sc student, Civil Engineering Department, University of Sistan and Baluchestan, Zahedan, Iran 2Assisstance professor, Civil Engineering Department, University of Sistan and Baluchestan, Zahedan, Iran afaraji_kamran@yahoo.com, bmmiri@hamoon.usb.ac.ir Key words: Damage index- Knee bracing frame- Nonlinear time history analysis.
Introduction Structural damage is losing the ability to resist external forces and ultimately becoming unstable from the structural engineering view point.
Allahabadi, Seismic damage prediction by deterministic methods: Concepts and Procedures, Earthquake Engineering and Structural Dynamics, Vol. 16, pp. 719-734, (1988)
Journal of Structural Engineering, ASCE; No.
World Academy of Science, Engineering and Technology 50, (2009)

Manufacture and Performance Test of New Type MR Damper Songjian Sun School of Civil Engineering, Tianjin University, Tianjin 300072 China sunsongjian@163.com Keywords: MR damper, Magnetic field, Magnetic circuit, performance test, damping force Abstract.
So MR damper has a wide range of applications and application prospects in semi-active control of civil engineering structures.
Engineering Structures, 2002, 24(3): 309-323
Journal of Structural Engineering, ASCE, 2003,129(7):845-856
Engineering Mechanics, 2005, 22(3):11-15.

Continuum Method and Effect Analysis of Energy Dissipation System for High-rise Shear-wall Structure Gao Liyan1, a, Liu Wenfeng1, b, and He Yuao2, c 1 School of Civil Engineering, Qingdao Technological University, Qingdao 266033, China 2 School of Civil Engineering, Tianjin University, Tianjin 300072, China a 32708gly@sin.com, b lwf6688@sohu.com, cyahe@tju.edu.cn Keywords: double limbs shear-wall, the continuum method, mode superposition principle of linear system, energy dissipation Abstract.
In document [7], an optimization design method for shear wall structure with energy dissipation devices is put forward, and deriving a formula of optimization damping rate, it provides theoretical basis and the new design method for selection of damper when make the expatiation on the engineering design for shear wall structure.
[2] Liu Wenfeng, New Development and Technology on Structural Control (Part 1), World Earthquake Engineering, Vol. 13 (3) (1997), pp. 19-26
World Earthquake Engineering, Vol. 13 (4) (1997), pp. 7-11
[7] Liu Wenfeng, Optimization of Shear Wall Structure with Energy Dissipation Devices, Engineering Mechanics, Vol. 22 (3) (2005), pp. 97-10.