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Application of Catastrophe Theory in Traffic Flow of Highway Tunnel Group Wei Zhan1,2,a, Yuequan Shang1,b and Fengxia Chi2,c 1College of Civil Engineering and Architecture, Zhejiang University, Hangzhou 310058, China 2Zhejiang Scientific Research Institute of Communication, Hangzhou 310006, China azhanwei@zju.edu.cn, bsyq@zju.edu.cn, cchifengxia@126.com Keywords: Highway environment, Tunnel group, Traffic flow, Catastrophe theory, Critical density.
(14) According to “Technical Standard of Highway Engineering” in China, the maximum flow of the secondary service level is 1400 pcu/h/ln.
He: Journal of Transportation Systems Engineering and Information Technology.

Introduction Nowadays mortars are among the most widely applied and prominent engineering compounds in construction, the use of natural and synthetic fibers as reinforcements is being developed at an experimental level.
Jóźwiak-Niedźwiedzka in: Proceedings of Institution of Civil Engineers: Construction Materials 174(3), pp. 172-181. (2021) [5] S.
Candiotti in: IOP Conference Series: Materials Science and Engineering, 942(1),012010. (2020) [7] S.

The Dynamic Fracture Analysis of the Adhesively Bonded Materials under Shear Loading Yanhong Cai and Haoran Chen State Key Laboratory of Structural Analysis for Industrial Equipment, Department of Engineering Mechanics, Dalian University of Technology, Dalian 116024, Peoples' Republic of China Caiyh69@163.com, Chenhr@dlut.edu.cn Keywords: dynamic fracture; adhesively bonded strip; shear loading; integral transform technique.
Introduction With the developing of high capability adhesive, adhesively bonded materials have become increasingly popular for applications such as aerospace, automotive, ocean and civil engineering.
Paraschi: Engineering Fracture Mechanics. 72 (2005), p. 877-897

Permeability Test Method of Concrete Member under Uniaxial Tension Stress Yong Yuan 1, a, Yang Chi 2,b 1 Key Laboratory of Geotechnical and Underground Engineering of the Ministry of Education, Tongji University, Shanghai, 200092, China 2 Depertment of Underground Engineering, Tongji University, Shanghai, 200092, China ayuany@tongji.edu.cn, bchiyangyy@gmail.com Keywords: Concrete member, Permeability, Tension stress, Autoclam system, Abstract.
[2]C.M.Aldea and S.P.Shah: Joural of materials in civil Engineering, 1999. 11(3): p. 181

The Interaction Analysis of the Middle-high Multi-ribbed Composite Wall-Shear Wall Structures and Pile-raft Foundation Yin Zhang 1, a, Caiyang Zhang 1,b and Qi Zhang1,c,Dengfei Zhang1,d 1School of Civil Engineering, Xi'an University of Architecture and Technology, Shanxi, Xi'an, 710055, China azhangyyt@xauat.edu.cn, bzhangcaiyang520@126.com, cxian201110612@yahoo.com.cn,d674182967@qq.com Keywords: Multi-ribbed composite wall - shear wall mixed structure; Foundation; Interaction; Finite element analysis.
This structure has achieved certain results in theoretical research and engineering application, but it is still lack of relatively study in the interaction of structure and foundation which is studied in this paper.
A stratum of soil in China Xi'an is analyzed with reference to geotechnical engineering investigation report in this paper, the compressed soil layers of foundation soil from top to bottom, respectively is the loess, silty clay, silty clay.

Discussion of the fireproof wall insulation materials Hongbo Yao1, a, Da Zhang1, b and Wei Zhu1, c 1College of civil engineering and architecture, Zhejiang University of technology, Hangzhou, Zhejiang, 310014, China a563539566@qq.com, b304937169@qq.com, c331610387@qq.com Keyword: External wall insulation, Fireproof, New type Abstract.
At the same time, phenolic resin by virtue of its superior performance was gradually applied in a number of important building, For example, the Fengyang Building in Nanjing, whose external wall insulation material is OPF modified phenolic fire insulation board, and it combine sticky techniques with anchor techniques in the construction process, steps are roughly same with EPS, and it will eliminate the fire hazards, it can be wide applied in engineering.
Advantages of New type of foam cement board are high fire resistance, high insulation, high strength, light, nontoxic, long lifetime and some others; it is widely used in engineering.

Autogenous Shrinkage in High Performance Concrete with Chemical Admixtures Jennifer Anette CANUL-POLANCO1,a*, Alejandro DURÁN-HERRERA1,b and Pedro VALDEZ-TAMEZ1,c 1Universidad Autónoma de Nuevo León, Facultad de Ingeniería Civil, Avenida Universidad y Fidel Velázquez, Ciudad Universitaria 66400, Monterrey, México *aj.canulpolanco@gmail.com, balejandro.duranhr@uanl.edu.mx, cpedro.valdeztz@uanl.edu.mx Keywords: Autogenous shrinkage, shrinkage reducing admixture, calcium nitrite, superabsorbent polymers, internal curing.
Acknowledgment The authors wish to express their gratitude and sincere appreciation to the different organizations that contributed in the development of this project, to the Consejo Nacional de Ciencia y Tecnología of Mexico (CONACYT), and to the Facultad de Ingeniería Civil of the Universidad Autónoma de Nuevo León.
[13] Ole J. (2011) “Water absorption of superabsorbent polymers in a cementitious environment” International RILEM Conference on Advances in Construction Materials Through Science and Engineering, I CemeSBN 978-2-35158-116-2 [14] Cusson D. et al.

Citation & Copyright (to be inserted by the publisher) Characterization of Unsaturated Particulate Materials using Elastic and Electromagnetic Waves Jun-Su Choi1, Ki-Il Song 1, Gye-Chun Cho 1 and Seok-Won Lee 2 1 Dept. of Civil and Environ.
Eng., Korea Advanced Institute of Science and Technology, Guseong-dong, Yuseong-gu, Daejeon, Korea 2 Dept. of Civil and Environ.
It has been difficult in evaluating such effects in common geotechnical engineering practices.

Research on the Performance of the Cement Stabilized Gravel with Rubber Particles Ruochong Yang1, a, Kai Li1,b *, Jipeng Zhu2,c, Shukai Ya1,d and Dong Zheng1,e 1School of Transportation, Southeast University, Nanjing, China 2Department of Civil Engineering, The Hong Kong University of Science & Technology, Hong Kong, China aruochong.y@seu.edu.cn, bsysulikai@126.com, czhjphk@ust.hk, dtaiwanyazi@126.com, ezd235832@163.com Keywords: Pavement base, Rubber cement stabilized gravel, SEM, Rubber particles Abstract.
Specimen molding equipment was YZS-2 (No. 070420)vibration compaction molding machine which produced by Yaxing civil instrument Co. in Xi’an, the compressive strength test and splitting test were done by SANS universal testing machine(200KN) and freezing-thawing cycle test was done by DS-500 freezing-thawing machine.

Investigation of the Effect of Fillers on the Properties of the Expanded Coke Layer of Epoxyamine Compositions Oleksandr Hryhorenko1,a*, Yevheniia Zolkina1,b, Natalia Saienko2,c, Yurii Popov2,d 1National University of Civil Defence of Ukraine, 94, Chernishevska str., Kharkiv, Ukraine, 61023 2Kharkiv National University of Civil Engineering And Architecture, 40, Sumska Str., Kharkiv, Ukraine, 61002 ahryhorenko81@gmail.com, bZolkinagenya@gmail.com, cnatause@ukr.net, diupopov@gmail.com Keywords: epoxy compositions, fire retardants, multiplicity of expanding, weight loss, ammonium polyphosphate, aluminum hydroxide, sodium tetraborate decahydrate, titanium oxide, pentaerythritol, silicon dioxide, expandable graphite.