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The Effect of free Joints on Sound Insulation of Constructions Dušan Dlhý 1,a 1Faculty of Civil Engineering, Slovak University of Technology in Bratislava, Radlinského 11, 81368 Bratislava, Slovakia adusan.dlhy@stuba.sk Keywords: joint, sound insulation Abstract.
On the base of experimental measurements in Acoustics Chambers of the Faculty of Civil Engineering of Slovak Technical University and mathematical analysis we have determined index of sound insulation of free joint.
Introduction Experimental measurements on sound insulation of joints of several types were carried out in acoustic laboratories at the Faculty of Civil Engineering [1,2,3].

In the field of civil aviation, MRO market has a strong seasonal characteristic.
Civil aviation industry requires high safety, advanced technique and intensive fund.
is the demand quantity of spare part for some civil aviation maintenance enterprise during production plan period .
Quantitative order model for air Material spare parts based on seasonal characterisitcs[J], Journal of Civil Aviation University of China.
Chance constrained programming approach to aggregate production planning[J], Journal of Systems Engineering. 2003,18(3):255-260.

Based on the basic principles and methods of the value engineering theory, this paper discussed the application method and basic steps of the value engineering in engineering material supplier optimization program.
Introduction Engineering material is the material basis of all kinds of construction engineering.
The basic principles of value engineering Value Engineering (Value Engineering, VE) originated in the United States in 1947 by General Electric's engineers Myers founded.
Case study Concrete is an important civil engineering materials widely used in industrial and civil construction, water supply and drainage construction, tunnel construction, road works, water conservancy and other aspects.
Due to the particularity of construction projects, quantitative marking is conducted according to the importance of these factors by seasoned front-line experts, including project manager, project engineer, technical engineer, cost engineer procurement engineer and supervising engineer which we use a,b,c,d,e and f to represent.

Thanoon3, f 1Department of Civil Engineering, Universiti Putra Malaysia, Malaysia 2Institute of Advanced Technology, Universiti Putra Malaysia, Malaysia. 3Department of Civil Engineering, University of Nizwa, Nizwa, Oman a email: farzad@hejazei.com, b email: mohd.dalili@gmail.com, c email: jamal@eng.upm.edu.my, d email: msj@eng.upm.edu.my, e email: aaaa@eng.upm.edu.my, f email: w.thanone@unizwa.edu.om Keywords: Seismic response, adjacent building, viscous damper, RC building Abstract.
In urban construction with the presence of tall buildings adjacent to short buildings, civil engineers have tried to connect low-rise rigid buildings to tall buildings in order to enhance the rigidity of the towers and decrease seismic response induced by earthquake excitation.
From recent developments in earthquake energy dissipation systems, the application of viscous dampers for coupling of parallel and adjacent buildings to reduce earthquake effect has been considered by civil engineers, and many investigations have been conducted.
Chen, et al.: Journal of Structural Engineering Vol 131 (2005) p.890
Xu: Engineering Structures Vol 29(6) (2007) p.1209 [12] K.

In the civil engineering field, the incorporation of chemical admixtures is now a practical technics' used for improving the properties of concrete, such as improved workability, decreasing the water demand, increasing strength, etc.
In the civil engineering field, the incorporation of chemical admixtures is now a practical technics' used for improving the properties of concrete, such as improved workability, decreasing the water demand, increasing strength, etc.
Note that the two waste-based curves 1 and 3 are spread out which allows a longer cement hydration process with a variation in the cement setting to be extended. 4 CONCLUSION This work aims to develop a new environmentally friendly bio-admixture and allowing the recovery of household waste for use in the civil engineering field.
REFERENCES [1] Charlotte MUNZER, Etude de l’action d’un bioadjuvant aux substances extracellulaires sur la microstructure et les caractéristiques de surface de pâtes cimentaires pour des bétons plus éco-respectueux, UNIVERSITÉ DE STRASBOURG, 2016 [2] Huan He, Nicolas Serres, Thierry Meylheuc and Françoise Feugeas, Workability Tests on Fresh Concrete Formulated with Eco-friendly Admixture, Journal of Civil Engineering and Architecture, Volume 8, pp. 315-321, Mars 2014 [3] Huan He, Nicolas Serres, Charlotte Munzer, Thierry Meylheuc, Françoise Feugeas, Influence L’influence d’un bioadjuvant sur les propriétés mécaniques et la porosité de mortiers, Colloque 01 Ecomatériaux, 24-28 Novembre 2014 [4] AFNOR. béton et constituants du béton. tome 1, 2, 4 AFNOR 4ème édition, 1995 [5] GEORGES DREUX.

Several Latvian scientific and higher education institutions took part in the conference and presented their research results: Latvian State Institute of Wood Chemistry; University of Latvia; RTU Faculty of Mechanical Engineering, Transport and Aeronautics; RTU Faculty of Civil Engineering; RTU Faculty of Materials Science and Applied Chemistry.

Functional Materials, Polymer, Composite, Biomaterials, Chemistry, Biotechnology, Biodiesel, Building Materials, Environmental Engineering, Waste Recycling, Coating, Molecular Glass, Exoelectron Emission, Wood Materials, Rubber

Illumination design of the computer classroom Chuang Cong1, a, Fenghua Lu2,b College of Architecture and Civil Engineering of Taiyuan University of Technology (030024).China.
a Email address: congchuang@126.com, bemail address: lfhsound@gmail.com Keywords: Classroom, illumination design (or lighting design), intensity of illumination Abstract: This paper carries on an illumination design about the computer classroom of Architecture and Civil Engineering College, Taiyuan University of Technology according to the rules of intensity of illumination standard value and lighting power density (LPD) stipulated in the Building Illumination Design Standard (GB50034-2004), and puts forward a feasible project in theory.
Ceiling reflectance is 0.6-0.9; wall reflectance is 0.3-0.8; operating platform reflectance is 0.2-0.6; the floor reflectance is 0.1-0.5.[4] The data collects Figure 1 The floor plan of computer classroom The computer classroom of Architecture and Civil Engineering College, Taiyuan University of Technology is on the 5th floor of Civil Hall in Yingze west schoolyard.

Effects of processing on fiber distribution and mechanical performance of engineered cementitious composites(ECC) Niu HengMao1,3,a, Xing YongMing1, b, Zhao YanRu2,c 1Inner Mongol University of Technology, School of Science,Hohhot 010051, China 2Inner Mongol University of Technology, School of Civil Engineering, Hohhot 010051, China 3Inner Mongol Technical college of construction, Department of construction engineering, Hohhot 010070, China aemail: niuhengmao@163.com, bemail: xym@imut.edu.cn, cemail: zhaoyanru710523@yahoo.cn Key words: Engineered cementitious composites; fiber distribution and orientation; strain- hardening; processing Abstract: Engineered cementitious composites(ECC) are characterized by strain hardening and tight crack width control.
Design of engineered cementitious composites for ductile seismic resistant elements, in department of civil and environmental engineering[D].
Eng Mater Civil Eng 2001, 127(4): 311–316 [6] Ozyurt N.
Extrusion of engineered cement-based composite material.
Engineering Fracture Mechanics, 2003, 70: 853-70 [12] Evans KE, Gibson AG.

Much progress has been made in wireless sensor network research for structural monitoring, but the research of the long-term monitoring system based on wireless sensor network in civil engineering structures is still at the beginning stage.
System Design Civil engineering structure is large, complex, more covering and the service time is long.
On the other hand, civil engineering structure monitoring location and content can be defined at the beginning of the system design.
In this paper, combining with the civil engineering structure features, we presents the principle of the system design.
Engineering Mechanics.

For needs of transportation, it is more and more obvious of the bridge unsafe, and the study of bridge safety monitor will become more important at the area of civil engineering.
It will be practical value at the area of civil engineering.
With the development of the electron, computer and image processing technology, digital cameras and 3-D laser scanners are new tools for data collecting and processing, the application and study of it is just start at the area of civil engineering, and it will be practical value in the world.
(3)The two measurement methods can realize their advantages complement for collecting and analyzing data, the combination of the two methods can solve the difficult problem of dynamic monitor in civil engineering
With the development of the civil engineering, the new problem of deformation measurement will appear at interval, it is a new study for us to do.