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2241 Uppsatser om Construction waste - Sida 18 av 150
Kartläggning av energianvändning under byggfasen vid nyproduktion av flerbostadshus
The energy consumption in the sectors of residential and public buildings is 40 % of the total energy consumption in Sweden. The main part, 85 %, of the energy use in these sectors is for operation of the buildings. The rest is used in the building process. When energy-efficiency measures are taken the energy use during the operation time decreases and the fraction of energy consumption during the building time increases. This project is carried out in cooperation with JM AB and concerns the energy use during the building time of production of blocks of flats at the building site.The main part of the electricity that is used during the production of apartment buildings goes into the heating of portacabins and illumination of the building during the construction phase.
Ekonomiska styrmedel för förpackningsavfall : En studie om vad som påverkar återvinningen i EU
In 1994 the EU directive of packaging waste was adopted. The result was that all EU member states developed different systems to manage packaging waste and recycling. This paper examines the various systems and the factors that affect the level of recycling. This is done by a cross-sectional study between countries. The results of my study suggest that take-back system generates less recycling than other systems, the mandatory deposit system can affect the recycling in a positive way.
Erfarenhetsåterföring :
This thesis has been done in collaboration with Peab Stockholm Building 3, which is a region within the Peab Sverige AB. The report is based on a survey and studies of Peab business management systems and production literature. For general information gathering has literature from well-known sources collected in libraries and through the Internet. It shows through the work that Peab has routines for experience feedback in the construction process, but that these procedures work in a small scale and the practical work experience feedback does not work at all. This is also something the construction industry in general also perceived as problematic. The questions in the report are of a wide scale and concerns construction errors cost, how the employees perceive that the company takes advantage of the skills and the mental stress in production line. The goal is to find how Peab Stockholm Building 3 will work on the experience feedback to allow for better productivity. In conclusion, the report author tries to demonstrate what can lead to increased productivity and improved work experience..
Effekter av nya PBL : En studie av processen från handläggning av bygglovsansökan till slutbesked
It has now passed two years since the new site- and construction law, PBL, went into force. It replaced the previous PBL applicable since 1987, and it involves relatively large changes in many different areas of the construction sector. The ambitions of the new law are for instance to simplify and clarify the legal text, increase efficiency in the permitting processes and improve the quality of construction. To achieve this, a variety of changes was made. Some of the most important are: inserted deadline in the processing of building applications, extended assessment of building applications, revised rules about controlplan and quality manager, a certificate is required to start and end the project, an additional meeting is inserted and the construction management of the municipalities will have to do a mandatory visit at the work scene.
Energianalys av hygieniseringssystem : jämförelse av befintlig pastörisering med integrerad termofil hygienisering på Kungsängens gårds biogasanläggning i Uppsala
The biogas plant Kungsängens gård, owned by Uppsala Vatten och Avfall AB, produces biogas and biomanure from organic household waste, food processing waste and
slaughterhouse waste. In year 2012, 4.4 million Nm3 of biogas were produced from 25 200 tons of waste. Before digestion all substrate is sanitized by one hour?s pasteurization at 70°C in order to kill pathogens. Another method, integrated thermophilic sanitation (ITS), is of
interest in order to decrease the energy demand.
Bygg- och rivningsavfall Construction & Demolition Waste
Stora materialmängder omsätts i byggsektorn, men en stor del restprodukter från byggande ochrivning hamnar på avfallsdeponi idag. Bygg- och rivningsavfallet är besvärligt att hantera och sorterapå grund av att mängden är stor, sammansättningen komplex och den innehåller många miljöfarliga ämnen.Syfte med examensarbetet är att ta reda på hur hanteringen av bygg- och rivningsavfall går till, vad som händer med avfallet efter att det har slängts, vilka olika faktorer som förekommer och hur avfallet kan återvinnas, återbrukas och på vilket sätt kan man förbättra hanteringen av avfallet på ett miljömässigt sätt.Examensarbetet består av två huvuddelar. Den teoretiska delen går igenom relevanta teorier ochinformation från litteratur och olika rapporter. I undersökningen tillämpas informationen från litteraturen och appliceras på de byggarbetsplatser och miljöföretag som valts att besökas.När det kommer till bygg- och rivningsavfall från olika företag kan det skiljas markant beroende påvar bygget ligger och vilket typ av arbete utförs. Det medför också hur stora massor som man slänger i olika containrar och om man har plast till alla containrar på det området som man befinner sig på..
Konstruktionen av den japanska ledaren: En studie av kvinnans roll i det japanska företaget
Japan is the first industrialized country that is experiencing the threat of a rapidly declining and aging population. This has shifted the focus and the limelight is now on the matter that for a long time has been ignored. That is, the Japanese women?s situation in the society. This thesis seeks to point out the relevance of gender in the construction of leadership in order to get a deeper understanding of the Japanese women?s situation today.
Landvinning : scenarier för efterbehandling och gestaltning av Aitikgruvan, Gällivare
Open pit mining creates huge amounts of tailings and waste rock deposits. Due to it's content of sulphide minerals, predominantly pyrite (FeS2), there is a risk of oxidation and formation of acid water containing heavy metals, known as Acid Rock Drainage (ARD). To prevent the process of oxidation, the tailings and waste rock have to be reclaimed. The most commonly used methods of reclamation are a coverage of water or soil.
Mining also results in a large-scale interference in the landscape that will make an eternal change of its appearance.
Smörjning Av Lager
The work thesis was performed at Assalub a company which is situated in Åtvidaberg. The company works with developing, manufacturing and marketing equipment for handling of lubricants for light and heavier industry. The work thesis it is based on a inquiry Assalub got from MacGregor which is a company within cargo solution, from port to offshore system.For unloading grain and other material from the ship cargo it is used combined inlet feeder and screw conveyor, there the inlet feeder is drilling down through the cargo and feed the screw conveyer with material to further destination. At the bottom of the screw conveyer and the inlet feeder there is a bearing that keep the parts together. However the lubrication of the bearing must be made manually.
Påverkad strukturerad produktion produktiviteten? : Analys av mätningar från byggbranschen
The cost of construction projects have increased during the past few years. Different actors in the construction industry work together to advocate various measures to mitigate these cost increases. One of these measures is to try to improve the efficiency in the phase of production. By striving for a kind of standardization with a constant quest for improvement, the productivity can increase while the costs of production fall.For this thesis has a case study been conducted at the construction company JM AB which is seeking this. They call the approach structured production and have implemented various measures to achieve a more productive output.Based on information from reconciliations, the cost and the spent hours of craftsmen have been analyzed at the company where the case study took place.
Det är ingen slump, det handlar om klass : Om klasstillhörighetens relevans för klientens möjligheter och begränsningar i den svenska socialtjänsten
The aim of this study is to illuminate social worker?s perception of social class within the Swedish social service system. This study therefor examine if social class contributes to the production and reproduction of the client and what impact social class has on the interaction between client and social workers. The study was conducted with qualitative semi-structured interviews with social workers from three different departments of social service. The theoretical approach is Yeheskel Hasenfeld?s theory about moral practices in welfare organisations, Michael Lipsky and Roine Johansson?s theories about client construction and Pierre Bourdieu?s class theory.
Biologisk reducering av nitrat och nitrit i vatten
During the summer 2007 was a scrubber tested at Gruvön papper mill in Grums. The scrubber reduced NOx with 90 % in flue gas. NOx was transferred from the flue gas to a scrubber liquid as nitrate and nitrite. The scrubber liquid needs to be purified from nitrate and nitrite. One possible solution is to clean the scrubber liquid in Gruvön biologic cleaning construction.Microorganisms in the biologic cleaning construction need to assimilate nitrogen. There are environments free from oxygen in the cleaning construction.
EU:s tjänstedirektiv - ursprungsprincipen eller destinationsprincipen?
The Vaxholm conflict was initiated when the Swedish Trade Union for Construction Workers shut down a construction site in order to prevent a Latvian construction company to build a school after the two parties had failed to agree upon a collective agreement in compliance with Swedish regulations. An emotional public debate followed that resulted in a discussion of the proposal for the Services Directive of the EU, based upon the country-of-origin principle. In this thesis we will analyze whether the country-of-origin principle or the country-of-destination principle is best suited to capture the gains-of-trade that the common market hoards and improve welfare within the EU. We conclude that the country-of-origin principle is the more apt of the two, though it leads to some short-run costs such as structural unemployment. But these will be more than outweighed by the gains in aggregate welfare for the EU in the long run..
Äldre och rädslans paradox : Konstruktionen av hotets och rädslans samhälle
The aim of this thesis is to examine the fear of crime in old peoples lives. Notwithstanding that the age category is exposed to crime to a low degree, old people are experiencing a great fear of crime relative younger people. This is the paradox of fear, also recognized in gender studies. The question is how this paradox can be understood. To answer this, twelve elderly men and women have been interviewed and the reports about crime in the local newspaper, Norrköpings Tidningar, has been analyzed, through discourse analysis.The discursive construction of fear is here discussed in terms of discourses of a fearful society, and stereotypes of old age.
Tillval och anpassning : kundens valmöjligheter vid köp av nyproducerad bostadsrätt
Background: The real estate market has previously been subsidized by the government. The construction has been characterized by standardization and large scale complex. In the current situation there are other conditions on the real estate market, subsidies do not occur at the same degree and the market is more competitive. Customer influence has also changed. Today the customers want to customize their apartment by personal needs and lifestyle.