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1971 Uppsatser om Construction Ecology - Sida 12 av 132
Avfallshantering på byggarbetsplatser : Potential för en miljöeffektiv avfallshantering
This thesis concerns waste management on construction sites and was conducted on behalf of ICA Fastigheter.Areas of concern:How can an environmentally-efficient waste management system on construction sites be defined? What potential exists for exploiting the waste resources that are generated?How can the waste management be optimised by reducing the quantity of waste and by optimal sorting?How can the client of a project influence the waste management?The purpose of the work was to investigate sustainable waste management in the building and construction sector and to highlight waste as a resource from an environmental and economic perspective.The aim of the work was to define an environmentally-efficient waste management system, to analyse the potential that exists in waste management and to draw up guidelines for optimal waste management.The method consisted of a literature study, two visits to construction sites and four interviews.An environmentally-efficient waste management system means that the waste is managed in the following order of priority:Prevention Reuse Recycling Energy recoveryLandfill The prevention of waste is an important area that has not been adequately explored by the building and construction industry. The quantities of waste could decrease with the implementation of measures such as ordering materials in the dimensions required, prefabricated components, logistics centres with Just-In-Time deliveries, less and improved packaging and less wrapping. The reuse of waste materials and temporary apparatus as well as the use of a return pallet system are examples of reuse that reduces the quantities of waste.In most cases the source sorting work is a matter of course and the proportion going to landfill is down at a low level. The source sorting can be optimised by sorting all materials that can be reused and recycled to use them as a resource.
Low-performing pupils at the construction programme
Low- performing pupils at the construction programme.
Produktivitetsstudie Brobyggnad
The development of productivity in the construction industry has long been at a steady state compared to the manufacturing industry. Studies have shown that, amongst other things, waste on construction sites can reach up to one third of the total production cost. This has been observed from different aspects, and change is forthcoming.This thesis aims to provide a foundation for an increased productivity at production sites of building bridges. It is primarily based on a field study at Skanska, at a bridge construction site near Grängesberg. Via continuous interviews with the whole production crew, construction workers and management, information on interference and possibilities of improvement at the work site has been documented.
PlusTak
Today´s roofing of dwelling houses is a very time consuming procedure, which includes a lot of different steps on the construction site. Not only does it cost a lot of money, but often do problems with rot and mold occur in the attics of houses today. The use of prefabricated modules has seen a great breakthrough in the field of construction of dwelling houses; at least when it comes to foundations and walls, where this type of approach makes the construction process way more efficient. What no one previous has succeeded to develop is a corresponding system for roofs that meets the demands of a dwelling house. Accordingly the goal of PlusTak has been to come up with a proper module system for roofing of dwelling houses, where the roofing is completed to meet the demands of the Scandinavian market. During the project a lot of effort has been put into customer contacts and the usability of the product, as well in the manufacturing process as on the construction site. This development has gone hand in hand with several practical tests and tryouts.
Fuktsäkert byggande : Sjönära bostäder i Östra Hamnen i Västerås
Housing construction very close to the lake Mälaren has become very popular today. One potential problem with these houses is the influence of the sea climate. Unprotected buildings are affected by strong winds and precipitation. So for that reason, it is very important to make an accurate climate investigation and use it for decision-making during the planning of the new settlement.It is very important with a good moisture protection regarding pelting rain, that is the combination of wind and rain. This is more important for buildings close to a lake, as this location normally means a higher exposure to wind.
Light Explosion : rekonstruktion av en akrylarmatur
This report presents thesis of Liisa Kokkonen in collaboration with Muovikilpi Oy.The project?s goal is to find a new construction for an existing lamp made of acrylic. Form and design retains and the manufacturing occurs at Muovikilpi Oy. The project contains the new construction and manufacturing of the lamp and also a proposition for a set with floor and wall lamp. The paper gives an outline of acrylic as material and how it reacts with light.
Att konstruera en gemenskap -teori och konstruktion av virtuella samhällen
Virtual communities are a phenomenon that is becoming more common as the information technology comes with in reach for the general public. This report will bring the theories and construction of a virtual community together. The purpose of this report is to describe the different theories that have emerged from the research within this field and to examine the work procedures that have been used during the development of a site for a MDA-community. The MDA-website is a homepage on the Internet that was developed to bring the students closer together. The report describes the work of the project group, why the website was not completed and at the end the theories are looked at on the basis of the construction of the website..
Hur påverkar byggnadsmaterial av stål en induktiv hörslingas fältstyrka samt frekvensgång?
This research analyzed differences in measurements of magnetic field strength and frequency response in five audio induction loops installed in rooms of wooden construction materials and five audio inductive loops installed in rooms of steel reinforced concrete constructions. The inductive loops were installed at floor level and the measurements were made at the listening height of 1.2m. Measurements of background noise, field strength and frequency response were made at fifteen different measurement points across the room. The research measurements showed that there are differences in field strength and frequency response between these two conditions, whether the audio induction loop is installed in a wooden construction or the audio induction loop is installed in a reinforced concrete construction. The results had a significance level of p=0,05..
Kroppsfett, genus och queer sexualitet : en undersökning av meningsskapande kring kroppar och fett i queera sammanhang
This essay examine the meaning produced around bodies and body fat in the queer community, but also in the surrounding straight community. The author has interviewed fat activists, and are using queertehory, to examine and analyze the relationship between body fat and the understanding and construction of sexuality and gender. The author concludes that even if norms around body shape and body fat are overlapping between the two contexts to some degree, they also differ. In the straight community, people with larger body shapes and sizes are punished, and encouraged to stay, or become, slim. However, in the queer community, ?fat? or bigger body sizes are not frowned upon in the same degree.
Logistik i byggbranschen : Fo?r fo?rba?ttrad arbetsmiljo? och effektivitet
Logistics and supply chain management in the construction sector is an area with great potential for improvements. Today, a lot of the workers time is spent on non-value adding activities. Research has shown that waste is a large proportion of the total production cost in building projects today.The purpose of this report is to analyze problems concerning logistics in the construction sector. Two of Skanska?s construction projects in Uppsala have been analyzed to identify problems.
Manligt och kvinnligt ledarskap inom byggbranschen : Skillnader och likheter mellan manliga och kvinnliga egenskaper i en mansdominerad bransch
In the construction industry the number of female managers is very low, only four percent (SCB, 2010). In fact, women with management positions has risen by six percentage overall, the last seven years (SCB, 2010). If women in managerial positions continue to grow at this rate, the proportion of women managers will be equal to that of male managers in 2033. More women are needed in the maledominated construction industry in particular because it is deemed that they have a different way of thinking and acting (Granér, 1994). Nelton (1991) believes that companies can take advantage of female managers to be more competitive on the market, the reason why is because women can see other possibilities when solving problems. Rapacioli (2010) argues that the recruitment of women into management positions not only benefits the individual itself but also the company. We have used a qualitative study with a deductive approach. Six respondents from the same company were interviewed, two of them have management positions and the other four were underemployed.The research question of this paper is: What differences and similarities are seen between male and female leadership in terms of their characteristics in the construction industry?The purpose of this paper is to examine similarities and differences in leadership in the construction industry where the focus is on the female and male characteristics. To fulfill our purpose we chose a qualitative study. We have interviewed six respondents at one company in the construction industry. Two of the six respondents have management positions and the remaining four are employed. In this paper we have concluded that there are some differences and similarities between men and women´s leadership in terms of their characteristics.
Mediakonstruktionen av den brottsliga invandrarkillen
This qualitative research is about how Swedish media constructs immigrants in articles. The focus of the study will lie on ten Swedish articles and how they stereotype immigrants, but the demarcation will be for young immigrant boys related to crimes. The purpose of this paper is to highlight how media achieves its goal to construct a group as inferior. This will be implemented with the help of articles from different newspapers that reported on immigrants who have committed crimes. We have chosen to look at different newspapers to see if there is a curtain pattern in the construction of immigrant boy.
ENERGIANVÄNDING PÅ BYGGARBETSPLATSER : Analys av införandet av energieffektiva byggetableringar
This report is the final step in the Bachelor of Science program in Building Construction Engineering, Department of Engineering Sciences, Uppsala University.The purpose of this study is to highlight the difficulties and possibilities that could involve the introduction of new energy efficient technologies and changing work around this technology. This study focuses on energy use at a construction site or other temporary workplace where so-called portacabins are in place to address the need for temporary facilities.The method for obtaining knowledge on the subject was mainly interviews with site managers working in Svevia AB's various activities. In conjunction with the interviews I visited construction sites and portacabins if it was possible.My most important suggestion to Svevia AB concerns a better organization in order to make poratacabins more efficient on energy and costs. The company should also evaluate and monitor the energy efficient portacabins that are in operation.Expected energy savings of new technology may not materialize if there are gaps in information, education, technical services and technical maintenance. It is very important to utilize the experiences of new technology.
Grundläggning med cellglas : En studie av byggtid och lönsamhet
This report describes a new foundation method and compares it with a traditional founding of concrete. This new method is called the Koljern technique and uses cellular glass which is called Foamglas. The Foamglas is compounded to founding elements by lightweight steel beams. Foamglas is an insulation material with high compressive strength, and is rot, insect, vermin and acid proof. The cellular glass is also fire proof and watertight, which makes it a very good construction material.The report contains a study of a number of cases for which the Koljern technique is compared with a foundation of concrete.
Ljusföroreningar i stadsmiljö : Hur kan ljusföroreningar förebyggas vid nybyggnation?
Light pollution in urban areas - How to prevent light pollution at construction Jakob Sjöling Light pollution is a relatively new but rapidly growing form of pollution. Society's increasing demand for light coupled with the pace at which lighting technology evolves is accelerating that growth. The purpose of this study was to analyse how the construction industry plan and design outdoor lighting when erecting new buildings, specifically with regards to the issue of light pollution. It also investigated how local authorities work with these issues during urban planning. In both cases special interest was placed in ways to improve the planning and use of outdoor lighting in order to minimize light pollution.