Search results

Experimental Investigation on the Influence of Water-cement Ratio on Air-void Parameters of Cement Concrete JinXi Zhang1,a, Chao Wang1,b, MingYang Guo2,c and MaoCheng Ma1,d 1Beijing University of Technology, Transportation Research Center, No.100 Pingleyuan, Chaoyang District, Beijing, CN 100124 2Beijing Mubicipal Engineering Professional Design Institute Co.
The SHP-1 slow type of water-reducing agent was used in this study.
In order to investigate the effects of the water-cement ratio on the air-void parameters of hardened concrete, water-cement ratio was designed as 0.60, 0.50, 0.40 and 0.30.
When water-cement ratio increased from 0.30 to 0.50, the air content of hardened concrete experienced little variation; While water-cement ratio went up to 0.60, the air content dropped slightly.
What’s more, the concrete with low water-cement ratio has a compact microstructure, in which there is little water that tends to be frozen, except the hydrate combined water.

Security Risk and Its Solution for Water Resources Specific Cloud Computing Platform Lin LIN a, Lun MIAOb, Xin-lan JIANG c and Guan-hua WANGd China Institute of Water Resources and Hydropower Research, A-1 Fuxing Road Haidian District, Beijing 100038, P.R.
WRSCCP is based on water resources specific software, including elite software and crowd software.
The so-called elite software is professional software which has a completely independent intellectual property rights, and has been widely approved.
Water Resources Software Cloud Computing Platform Architecture WRSCCP is a public service platform based on cloud computing and supports the development of water resources specific software and applications.
SaaS platform provides standardized resources of WRSS for water resources industry.

There were the safe drinking water project constructions that only worked out “to have water for drinking” and ignored “water quality purification and supporting facilities” [2].
Along with the rural drinking water safety project completion of the new water supply, these facilities apparently were drop behind and need to give high standard construction. 1.4 In the aspect of project operation and management, lacked ways to implement of operable standardizing system and industrial standard, the responsibility for engineering management and protecting has need to refine further the implementation of professional management, shortage of technical personnel, the operation management level of engineering was not high, result in low efficiency of engineering. 1.5 Project investment direction was not clear which mainly reflected in the project planning approval did not fully and objectively research evaluation, nothing but either local competent liked active report and didn't really need or man-made reported the project scale, either was the superior administrative orders must complete the project scale, resulting in waste of state funds.
The specific approaches are: each project by the masses of benefit to elect a village water tender for engineering, who full charge of the daily operation of water conservancy project, and the villager committee and the water tender sign an agreement that are clearly the rights and obligations of the water tender.
The water station would be responsible for the supervision, guidance, coordination and solved the questions of the villagers and water tender. 2.7 Combined with the water supply for construction and other emphasis water conservancy project, further increase investment Rural water supply project has public welfare and the economical dual nature.
The original water supply project water because of insufficient or small scale has been difficult to meet the water demand and seriously has restricted the development of local economy.

Roofs insulation materials should not use materials with high density, good heat conductivity and strong water absorption.
To achieve energy efficiency in water supply and drainage design, rational use can be made of excess pressure of municipal pipe network, the use of frequency of water supply equipment; rational design of water supply systems using solar energy as heat source as possible; water saving equipments like water saving materials, appliances and devices should be popularized, outdated products should be prohibited in practice, water consumption and energy consumption from increasing pressure can be reduced, collection and overall utilization of rainwater of energy can also save energy.
Hot water pipe network design should be packed with economical and reasonable materials.
Moreover, he is in good position to cooperate well with professionals in other majors in order to design buildings consistent with architectural principles and energy efficiency principles.
The design of building water saving technology analysis.

For decades, many professionals at home and abroad have paid much attention to the study of cave dwellings in the loess plateau, which is not merely because of the unique architectural style, but more significantly is related to tens of millions of people’s living condition and the new era of "living culture" problem.
There are various YaoMian, wihch adopt different checkers, such as the RuYi, the character Wan or Gong, the double happiness, the water moire and the clouding moire, etc. for good luck and blessings.
Water supply and drainage measures On water supply of the caves, to use water pump pumping groundwater, and the roof water tanks for temporary storage, then make use of gravity feed to deliver water from the tank to the sitting room, kitchen, toilet, etc..
Construction drainage sewage and toilet waste directly drain into the pool to produce biogas. [5] Additionally, dig the cisterns in the courtyard to collect the rainwater and utilize comprehensively to save water.
In terms of living hot water, to use passive solar energy water heater to provide hot water.

Only train a number with a solid professional knowledge, understand the economy, the law, and good management, while foreign language proficiency in the use of computers and high-quality green construction management personnel, will be green construction management to a new level.
Materials and Construction Management of Water and Other Resources Management of construction materials, and water resources are very important, and its relationship with the improvement of the environment and improving efficiency.
Construction site water, almost all of varying degrees of run, run, drip, drain phenomenon, so the construction site, you can install some small flow of water-saving devices and appliances, such water during construction will be greatly reduced.
Need to install a meter at the construction site, so that water consumption is being monitored will prevent waste.
For dust, we can set the fence, the way to deal with the use of water spray dust.

Water diversion stimulates increasing consumption of water in the intake area, which in turn requires more water input.
ITT has been applied in water industry to enhance the security of water conservancy and to promote the development of water conservancy as well.
The water industry has excellent basic conditions to develop the ITT: At first, professional sensor technology has developed maturely in the water industry.
The application of wireless sensor technology in water monitoring Wireless sensors which include water level and water quality sensors are installed in each water quality monitoring site.
Water level sensor is used mainly to monitor water level of the pumping area in each site to control the quantity of water input.

Introduction The capital economic circle is developing rapidly with the increase and urbanization accelerate the process of urbanization and it has led some climate issues such as the deterioration of the traditional industries , water pollution, air pollution and global warming.
technology gap between China and other developed countries is not obvious compared to other industries.Therefore, the government should put special emphasis on measures to encourage technology innovation in low carbon technology.Beijing should actively use their advantages to enhance information exchange Capital Economic Circle of low carbon technologies.Governments need to actively explore the mechanism of technological innovation and promote various universities and research institutes and enterprises of horizontal cooperation.So it will promote low carbon technology research, development and popularization and application. 3.2 To strengthen the education and cultivating talents on low carbon The concept of low carbon is large including reducing energy consumption, pollution and emissions, new energy-saving materials, recycle economy theory research and application of the technology, involving materials, machine, environment and engineering subject construction, electricity, and other professional.To
develop the low carbon education it must have a certain discipline foundation.This kind of low carbon education layers should be implemented in stages, at school, professional, subject, the choice of teaching material, to planning, partial section.First, an increase in cutting-edge research related to low carbon disciplines doctoral degrees and other professional direction, training high-carbon talents.Meanwhile in vocational education and increase the share of low-carbon skills courses, training a lot with carbon conscious, low-carbon and low-carbon skills, knowledge and has engaged in comprehensive capacity and low-carbon work overall quality professional labor groups.Low carbon education popularization development has the profound significance to the future of green economy and low carbon economic circle itself. 3.3 Set up the brand It is important to pay special attention to the cultivation base brand or the brand in addition to corporate brand development.

Conclusion Getting local chill on the cutting edge of the bit is achieved by heating the working surface to melt a thin surface layer of a predetermined thickness of high frequency current or an electric arc and then cooled with a water shower.
Kurbanov, Increasing the Wear Resistance of Tillage Workers by Structuring High-carbon Alloys, News of the Nizhnevolzhsky Agrouniversity Complex: Science and Higher Professional Education, 3 (2018) 283-291
Motorin, The Complex Effect of the Chemical Composition of Cast Iron on the Structure of the Chilled Chisel Plow Chisel layer, News of the Nizhnevolzhsky Agrouniversity Complex: Science and Higher Professional Education, 2 (2016) 221-228
Gapich, I.B.Borisenko, Problematic Issues of Operation of the Working Bodies of Chisel Tools and their Solutions, News of the Nizhnevolzhsky Agrouniversity Complex: Science and higher professional education, 3 (2015) 174-179
Borisenko, Problematic Issues of Operation of the Working Bodies of Chisel Tools and their Solutions, News of the Nizhnevolzhsky Agrouniversity Complex: Science and Higher Professional Education, 3 (2015) 176-179

Therefore, a county or a professional who WRS higher, the corresponding D smaller.
To cadres of water sector, their tension of water resources is deep.
To improve the level of awareness of all the people about water shortages and to rational planning and management of water resources are the key to solve water shortages.
Moreover, to peasants and herdsmen and cadres of water sector, their awareness on water stress are close to
(4) To improve the level of awareness of all the people about water shortages and to rational planning and management of water resources are the key to solve water shortages.