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2308 Uppsatser om Concrete construction - Sida 38 av 154

Varför uppförs så få bostadsrätter med passivhusstandard i Sverige? : En fallstudie mellan ett passivhus- och en konventionell fastighet

Abstract Background: In 1997 the Kyoto Protocol was signed, it?s an international agreement which is aimed to reduce greenhouse gas emissions. Sweden's goal is to reduce energy using in buildings with 20 percent by 2020 and 50 percent by 2050. This is a comparison with levels from 1995 (Glad, 2006). For Sweden to be able to reach its goals, they need to construct more low-energy buildings (Åhman, Wahlström & Lundblad, 2010).

Trafikklasser för markplattor av natursten : förslag till klassificeringstabell

This report deals with hard surfaces and the factors which are behind the criteria for dimensioning, also dependent on the level, or volume, of traffic. A test was made on slabs of two kinds of natural stone. This was made to see if the values that were reached for breakload was transferable to the same tables that the concrete industry is using for surface dimensions of slabs and paving stones. The test showed very high values and the result, together with the written study, led to the author?s suggestion for a classification table where slabs of natural stone were divided in to different classes depending on traffic, thickness and durability..

Hur väl integreras ekobygglösningar hos bostadsbyggande byggherrar

Vi lever idag under ett klimathot som påverkar oss alla. I ljuset av detta har byggbranschen valt att börja ställa om mot en mer hållbar bransch. Under tiden har även ekohus och ekobyar byggts upp som ett alternativ sätt att bo suntSyftet med detta arbete har varit att undersöka vilka val som byggherrar/beställare gör vid projektering av nya bostäder. Jag har valt att inte titta på energianvändningen utan fokuserat på vilka miljömässiga aspekter som återfinns i arbetssätten kring projekteringen av bostadshusFör att ta reda på vilka val som kunde anses som ekologiska/miljömässiga gjordes först en litteraturstudie. Sedan gjordes en enkätundersökning där utvalda företag fick svara på bl.a.

Eldens arkitektur : En studie av de medeltida varmluftsugnarna och deras betydelse

AbstractThis thesis examines and discusses a sample of the medieval hypocausts (stone-heating ovens) in the Baltic area. The medieval construction is thoroughly explained as well as the antique hypocaust in order to establish a base for the following discussion. The medieval hypocaust has been almost forgotten for a long period of time. The last time someone dealt with this category of finds were in the 1960?s by Swedish archaeologist Iwar Andersson and in the 1970?s by Danish archaeologist Johannes Hertz.

Bilder av föräldraskap : En studie om hur föräldraskap konstrueras i barnhälsovårdens föräldragrupper

The parental education groups are an activity that attracts the majority of all couples that awaits their first child. Therefore this is a forum with strong influence on the formulation of the parenting. The aim of the study was to examine how parental education within Swedish child health care, affects the construction and shaping of parenthood. We have also studied this from a gender perspective. The starting point for our understanding of parenting is that it is socially constructed.

Implementering av BIM i ett projektledningsföretag inom byggindustrin : Implementation of BIM in a project management company within construction industry

Syftet med rapporten är att skapa en förståelse om vad BIM är och undersöka vad BIM för med sig i projekteringen. Det som kommer behandlas är BIM-samordnarens uppgifter, de olika negativa aspekter som påträffats vid användandet av BIM samt en presentation av olika program så kallade verktyg som används vid BIM-projektering. .

Optimering av betong med Byggcement (CEM II) till håldäcksproduktion

This thesis has been developed inassociation with Strängbetong AB, Sweden.A few years backCementa AB introduced a new type of cement on the Swedish market: Byggcement,which is a Portland Limestone Cement. This type of cement is better for theenvironment and cheaper than Rapid Hardening Cement which is used today at SträngbetongAB.Strängbetong AB isvery interested in a change of cement in the factory and wants to know what ittakes to make a transition from Rapid Hardening Cement to Byggcement.This final projectaims at investigating how the workability and strength development are affectedby a transition from the existing cement to Byggcement and how we can change theproperties of the concrete by adding different types of superplasticizers. Laboratory and factoryexperiments were made, to investigate the transition..

"Sök Er ej till Stockholm" : -Om sambandet mellan bostadsbrist och tillväxt

Recent years there has been discussed how the critical situation in the housing market threatens the Stockholm region's growth. The thesis objective is to examine whether there is a scientific link between the lack of housing supply and growth. The thesis also intends to identify solutions for increased housing construction, for instance by examining the conditions for a greater regional perspective and influence on the region's housing supply. The thesis empirical study is based on semi-structured interviews with representatives from the Government, municipalities and the housing industry.In Sweden, research on the relationship between housing shortages and growth has not been conducted to that extent it can be said to exist scientific evidence regarding the growth threat. However, in Britain and the U.S, empirical studies show that a lack of housing supply has hindered growth through negative impact on countries' gross domestic product.

Samverkan mellan totalentreprenör och projektör i stora byggprojekt

As a result of the so called ?Million Program? between the years 1965 ? 1975 the design-build contract had its breakthrough in Sweden. Since then, the contract form has become increasingly common and now holds a strong position on the Swedish market. In design-build contracts it?s usual that the design and production time is overlapping.

Vi och våra andra Om konstruktionen av de andra i svenska läromedel. En diskursanalys av fem samhällskunskapsböcker för högstadiet.

The purpose of this study is to examine to what extent the senior level Swedish school can be viewed as supporting, or counteracting, a colonial discourse that legitimizes global and national injustices. The study is executed through a discourse analysis of five textbooks in social science for senior level Swedish schools.Using elements from Foucault and Edward Said a theoretical framework is constructed, in which a colonial discourse is perceived as structured around four clusters of ideas, namely (i) the use of dichotomies, (ii) the concept of progress and civilization, (iii) the construction of -we- as synonymous with (ii), and (iv) the construction of -the others- as the opposite of (ii) and, therefore, the opposite of -us-.The results show that a colonial discourse is still highly present in the textbooks, in that the texts are structured around dichotomies such as tradition/modernity and democracy/dictatorship. Sweden and the Western world are perceived as closely associated with democracy, freedom, and modernity, whereas -the others- of the world are being associated with e.g. poverty, conflict, tradition, and ignorance. -The others- within Sweden, i.e.

Dammsäkerhetsanalys via stabilitetsberäkningar för Långströmmens kraftverk : En jämförelse mellan olika dimensioneringsmetoder

A detailed dam safety evaluation (in Sweden called FDU) was performed in 2009 by WSP where stability control was performed for Långströmmen power plant with associated spillways. This evaluation concluded that stability could not be ensured, and risk of sliding occurred. The evaluation is based entirely on the recommendations outlined in RIDAS, the power companies guidelines for dam safety, and it is clear that extensive renovations are necessary to stabilize the dam.In this work, the stability will also be checked with guidance through new proposals on guidelines for concrete dams sliding stability, ELFORSK?s report 08:59. This report considered the guidelines in RIDAS as oversimplified, both from an international perspective, but also with regard to the current state of knowledge regarding dam safety.

OLIKHETER I SKOKURATORERS BEDÖMNINGAR - EN VINJETTSTUDIE OM TOLKNING, BEDÖMNING OCH AGERANDE

From my own experience as a school counselor I have learned that the decision making processes in terms of supporting and helping the students is extremely hard and very individual. In different situations, a different approach between individuals is present. I thought about which factors effects the school counselor?s way of handling problematic situations. I soon realized that the individual has a great effect on the work itself.

Konstruktionen av en diversifierad normalitet : En studie av hur det interkulturella perspektivet kan yttra sig i några förskolepedagogers didaktiska överväganden och praktik.

The aim of the present study is to describe and analyse how an inter-cultural perspective presents itself in the didactic considerations and in the practice of preschool teachers on a multiethnic preschool.The theoretical perspective upon which the study is founded is social constructivism, but in addition to this Ingegerd Municio?s idea of two existing discourses present within the institutions in the Swedish educational system, as well as René León?s concept of a diversified normality, has been used as theoretical tools and points of departure.The empirical investigation consists of a qualitative field study at a multi-ethnic preschool, where participating observation and group interviews have been used to collect data. In these teachers from the preschool have participated.The results and the analysis of the data show that an inter-cultural perspective surfaces in the didactic considerations and in the practice of the preschool teachers in their construction of a diversified normality. The diversified normality thus constructed is constituted through different social processes. I have here identified the following ones: the preschool teachers emphasize differences among the children in general, they allow that the children behave differently and they allow them to be different; they recognize ?cultural? differences, differences in origin, and frames of reference, and they recognize that the children at the preschool are bilingual..

Genus och informationsteknologi

This thesis discusses how the education in the Master of Engineering program can change to become more into line for the students needs, especially for the women, both directly in the education situation and later in their occupational roles. This is done using a gender perspective. Both the education and the occupation today is characterised by masculine norms and values. The education lacks gender perspective and is created by men, for men. The thesis gives concrete proposals on how to change two existing courses to better fit the students.

Att förebygga och undvika fuktskador i byggnader

Efforts to achieve a moisture proof construction process have proved to be considerably complicated, despite the knowledge and awareness that now exists within the moisture field. Materials, documents, templates and checklists are designed to be accessed but are not used anyway. This may be because such effort has not been prioritized and properly requirements have not existed from the commissioner of a building.This report illustrates how the commissioner of a building project can achieve a moisture proof building process by increasing knowledge, moisture proof planning, and implementation of security moisture routines. Proposals are given on how the commissioner of a building project can work to consistently bring a moisture proof building process in all stages. The difficulty with regular moisture proof efforts, the authors believe is mainly due to the following points:      Many different design solutions.      Lack of experience feedback.      Lack of communication.      Financial incentives.      Attitudes.The interviews in the report have conducted with the help of a qualitative analysis, while the survey has been done using a quantitative analytical method.

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