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688 Uppsatser om Concrete Recycling - Sida 11 av 46

Moderna trä- och betongstommar i flerbostadshus : En teknisk jämförelse av ett fyravåningshus med två stomalternativ.

Målet med detta arbete var att belysa skillnaderna mellan ett fyravåningshus med trä- respektive halvprefabricerad betongstomme ur ett tekniskt perspektiv för att utröna vilket stomalternativ som är att föredra.Faktorer som belystes var:Tjocklekar på bärverksdelarLängsta möjliga spännvidderInstallationsmonteringElementmonteringGrundstorlekLjudisolerande förmågaRisk för fuktskadorBranddimensioneringProjekteringskomplexitetBygghandlingar från ett befintligt flerbostadshus med trästomme erhölls och analyserades, och ett hus med likvärdig stomme av betong projekterades.Bärverket med halvprefabricerad betong dimensionerades efter rådande Eurokoder och detaljer utformades enligt gällande lagar och regler samt erkänd branschstandard.Ur de tekniska perspektiv som avhandlats i denna rapport väger fördelarna med betong något tyngre än träalternativets fördelar trots att egenskaperna i vissa hänseenden är mycket lika.Betongalternativet ger stora fördelar vad gäller brand och ljud och är samtidigt enklare att projektera, medan trä har sina fördelar i montering och grundläggning. Att välja en stomme av trä till ett flerbostadshus verkar också ha fördelar i de icke avhandlade aspekterna, t.ex. miljö och arbetsmiljö.För att uppfylla ljud-, brand- och fuktkrav i ett trähus krävs det avancerade byggsystem som innebär stor komplexitet i projekteringen vilket kräver ett nära samarbete mellan träprojektör och fabrikör. .

Att be om hjälp utan att fråga

This report is our Master thesis. Our work has taken place at a one-stop-shop in Sölvesborg during the spring of 2002. We have conducted ethnographical studies concerning the one-stop-shops frontdesk and telephone exchange. During these studies we became aware of some differences under which the daily work was to be carried out. When operating the switchboard the staff usually work alone and perform the tasks individually.

Samverkanspelare i icke bärande fasadelement

AbstractThe tests work is about the subject "synergism of steel and concrete."The construction sector is in a strong competition and the different companies in the PrefabMarket has ever tried to develop new design solutions that are efficient and environmentallyfriendly.The purpose of this report is to highlight different aspects of interaction and size up a columndimension and to examine its efficiency and load capacity as Eurocode 3 and Eurocode 4. A sizing chart that describes the relationship between the torque and normal force shouldalso be made of the interaction . .

Industriell symbios som affär : Hur kan ett återvinningsföretag facilitera utvecklingen av regionala industriella ekosystem?

Addressing increasing global environmental problems requires greater resource efficiency, and one way of working towards this is through industrial symbiosis. Industrial symbiosis means that companies collaborate through sharing of resources for collective benefits. The documented benefits of working with industrial symbiosis indicate that there is potential for companies to operate commercially with facilitation of industrial symbiosis. An interesting company to study within this context is Econova. Econova operates within the recycling and gardening industry and has been identified as a possible catalyst for industrial symbiosis.

Vinterträdgårdar ur ett byggperspektiv : En undersökning om byggandet av vinterträdgårdar

The purpose of this of this essay is to explore the construction of a conservatory that is livable allyear around. When you build a conservatory there are several factors that need to be regardedthat usually are of no importance when you build a regular conservatory. The glassed facadeneeds to have a very good U-value and all the parts of the facade need to be isolated and theconstruction needs to prevent thermal bridges.In this essay we will start by looking at the shape of the conservatory. Due to the façade consistsof glass the conservatory will need to have a good ratio between the area and the façade so thatthe heat losses will be at a minimum. However, due to the fact that one of the sides of the façadeis connected to the warm house, you quickly realize that the shape of the conservatory is of noimportance.There are two common ways to build a foundation for a conservatory, a molded concretefoundation and isolated wooden beams.

Förstå kundens bruksvärde

Abstract?Understand the customers value in use ? A multiple case study of three industrial companies? or ?Förstå kundens bruksvärde ? En multipel fallstudie av tre industriella företag? brings out the problem that it is easy to assume, what the value is for the customer.The questions asked for this thesis are:? How does the companies in focus, gather information about what effects the customers value in use?? How do the companies use this information in their business?The purpose is to examine how some industrial companies gather information about the customer?s value in use, on the bases from the five activities from Porter and how they can use this information.Three semi structured interviews were made for this investigation, with representatives from Atlas Copco Rock Drills, IL Recycling and Johnson Pump.The conclusions are that to gather information about the customers value in use, the company must work close with the customer. This information helps the company to improve their products, services and their relationships..

Husproduktion, kritiska skeden i produktion

As a newly graduated student in construction you rarely have as much knowledge as you wish you had. It is a complicated line of business that requires knowledge and understanding of both technical solutions and interaction between actors. It is impossible to be fully learned and with that much unknown it can be hard to know where to start. This report is one step in the right direction. It contains a planning that contains construction and installations for a one level house in Kiruna with its different choices motivated.

Temperatursprickor i ung betong : Utvärdering av projektering och utförande av åtgärder, samt utveckling av dimensioneringsmetod för kylsystem

The report contains three parts. The first part is a summary and overall presentation of thermalcracks and preventing measures against such cracks. This is a theoretical part where theinterested designer can get acquainted with various alternatives, be guided to more detailedliterature, and receive some practical information regarding the design of the respectivemeasures.The second part deals with calculation of the risk for thermal cracks and design of water coolingas a limiting measure. Two complementary methods are reviewed for efficient calculation:?the handbook method CraX1(by Lulea University of Technology) is used for quickverification?finite differential analysis in the calculationtool ConTeSt Pro for more precise projectingHere is also presented a development of existing standards through design of the cooling systemby means of the Bernoulli equation.

Köldbryggor och energiförluster. En studie om energiförluster genom balkonginfästningar och deras betydelse för byggnadens totala energibehov

In this report the balconies? abutments for a property in Bo01-area in Malmö has been studied. The property which is called Vitruvius contains four build-ings where two of them have corbelling balconies with intermittent abutments. With intermittent abutment means that the 50 mm thermal bridge insulation that the balconies is equipped with, is broken regularly by a 300 mm concrete heel. The reinforcement bar that holds the balcony runs through this heel.

Vindkraftens framtida scenarier

In several countries that have been early in the development of wind farms, there is today a second hand market for the used wind turbines. The European Union (EU) has established a waste hierarchy in order to minimize throwaway mentality. The second hand market is a part of this as the steps are to minimize, reuse, recycle, extract energy and landfill.In order to promote the development of renewable energy, there are energy certificates for the producers that provide it, wind power being one type of renewable energy. After 15 years the energy certificates for a specific wind turbine are no longer paid, and after that there are several different scenarios for the wind turbine. The scenarios investigated in this bachelor?s thesis are export of the wind turbine to countries that are not as far along as Sweden in their development towards renewable energy, selling in Sweden to individuals, and recycling of the wind turbine, as it mostly consists of metals and therefore is recyclable.

Att be om hjälp utan att fråga

This report is our Master thesis. Our work has taken place at a one-stop-shop in Sölvesborg during the spring of 2002. We have conducted ethnographical studies concerning the one-stop-shops frontdesk and telephone exchange. During these studies we became aware of some differences under which the daily work was to be carried out. When operating the switchboard the staff usually work alone and perform the tasks individually.

Analys av miljöaspekter för en planerad svensk fabrik i Kina

A Swedish company, company F, will establish a new factory in China. Company F is adivision within Company F. The factory in China will manufacture wire products. Thepurpose of this final thesis is to analyse which legal and practical measures the company hasto undertake during the process of localization to get approval from the Chineseenvironmental legislation.An analysis of the influencing factors on the environment from the production in theconstruction in Sweden was carried through. A material-balance was analysed according tothe flowchart of the production.

Gårdsbaserade system för spannmålshantering i den framtida Lantmännenorganisationen :

The Swedish cooperative Lantmännen Ekonomiska Förening has initiated a project labelled "Operation Blåljus" that includes an extensive program for closing down elevators. The number of elevators will be reduced from 92 to approximately 15 after harvest of 2007. The objective of Blåljus is to increase the price of grain with 10 öre/kg. A project has been initiated at the Lantmännen Grain division where the purpose is to provide the farmers with support in their decisions and practical advice how they can load a 35 ton grain truck on 30 minutes. The result from the project will serve as a support system to the farmer in his ambition to achieve cost efficient systems to load a truck with grain on the farm.

Vad håller vi på med? En kartläggning av kommunikationsprocessen kring kampanjen "Vad håller du på med?"

The aim of this thesis is to use Gabriel Tardes theories concerning imitation, repetition and the public opinion as a way of understanding how transmedial communication develops over time. This involves a study of social media, traditional press and public organizations in relation to each other. The campaign, What are you doing? (Vad håller du på med?, 2013), launched by the Swedish military as a way of drafting more soldiers, is used as an example of how the theories can be applied to help us understand connections, patterns and social behavior in the rapid mutation and viral spreading of information. By discussing the campaign and its effects, the ambition is to give an understanding of how a campaign of this scale could be planned for and structured.

Pantametoden : En metod som alternativ för att skapa ljuddesign

I detta arbete har vi försökt skapa en metod som skulle kunna hjälpa ljuddesigners inomindieföretag att med begränsade resurser komma fram till en kvalitativ ljuddesign genom attanvända en form av återvinning. Syftet med vår metod, som vi kallar för pantametoden, går utpå att återvinna ljudmaterial med hjälp av effekter för att skapa nya och kreativa ljud som går attanvända i en produktion. Vi kommer att gå igenom de nödvändigaste delarna för att visa hur vitillämpat vår metod, exempelvis vilka verktyg som finns och hur de kan användas för att uppnådet resultat som eftersträvas. Metoden har testats på två stycken spel som vi har varit med ochutvecklat, och där vi har bidragit med ljuddesignen med hjälp av vår metod. Vi kommer attpresentera vilket resultat vi har uppnått, och vilka problem som har uppstått..

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