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620 Uppsatser om Bond between old and new concrete - Sida 2 av 42

Betong - Förvånansvärt lättflytande!

Concrete is a very common construction material. It´s characteristics are strength, durability and formablility. Superplasticizer is a common admixture, which changes the properties of concrete. Today (spring 2007) there are no certian mathematical methods to calculate the required percentage of this admixture needed to give the necessary set slump flow in the overall concrete recipe. Concrete batching companies must therefor experiment with different amount of superplasticizer in order to meet the specified slump and strength. The purpose og this report is to investigate if any mathematical relation can be established between the amount of superplasticizer used and the slump flow achieved. After carrying out some practical experiments using four different superplasticizers a direct relationship can be establish between the percentage of admixture used and the slump/flowability achieved. Unfortunatly at present due to the numerous variables, the calculation of mathematical formula can not be achieved..

Utmattning av vägbroar i armerad betong enligt eurokoder

Since 1 January 2010 it is a requirement to use the European standards, Eurocodes, in Sweden when constructing bridges. One chapter that has caused an extra amount of problems for the engineers is the one about fatigue analysis, which resulted in us doing this thesis.To do this we had to read all of the Eurocodes that direct, or indirect deals with fatigue and calculating of such. We have read the background documents for the Eurocodes and master?s thesis in the subject. We also studied the calculations of bridges constructed by different construction firms.We have chosen to limit the thesis to discuss only road bridges made of concrete due to the lack of method for verification of concrete in the national appendix.

Hisskärna av skalväggar i höga byggnader : Ett alternativ till den platsgjutna kärnan

A common way to stabilize high rise buildings is to use an elevator core built of concrete. Today, we use to build these elevator cores of in-situ concrete. Precast concrete twin wall (double wall) is a semi-finished product that has become more common in recent years. This diploma work studies how the twin wall works out as structural elements in an elevator core. The work also shows some possible ways of designing twin walls and highlights some important parts of the design that will be vital to the stability of the building.    The result shows that it is important to think through where the element joints should be placed.

Varför ger inte fler svenska företag ut konvertibler?

The purpose of this thesis is to increase the understanding of why convertible bonds are a relatively uncommon financing method in Sweden. The aim is to find the explanatory factors for this situation. The analysis is based on interviews conducted from three perspectives; the investor?s, the adviser?s and the issuer?s. The main finding is that the Swedish financial market has characteristics that inhibit the development of a convertible bond market in Sweden, leading to the fact that most convertible bonds are issued under special circumstances.

Prefabricerade stödmurar i betong :

This is a booklet with information and inspiration about precast retaining walls. The three chapters contain information about concrete as a material, how the surface of the wall can be altered, and a chapter with ideas for a new precast wall. I have obtained information through books, interviews, lectures and fairs. The retaining walls on the market do not correspond to the requirements of the Landscape Architects I have interviewed. I have therefore considered their opinions in the chapter containing my new ideas for new retaining walls.

James Bond : Relationen mellan film och produktplaceringar

Behovet av produktplaceringssamarbeten ökar eftersom traditionell reklam minskar i effektivitet samtidigt som filmproduktioner kräver större budgetar. Bondfilmer har lockat publik i 50 år vilket gör det möjligt att studera relationen mellan filmernas karaktär och produktplaceringar ur ett historiskt perspektiv. Materialet består av den första filmen Dr. No (1962) samt den senaste filmen Skyfall (2012). Semiotiska analyser görs av scener med framträdande produktplaceringar.

Lek och lärande : En studie av vad lärare och elever associerar ett laborativt arbetssätt i matematik med

During recent years, the trend of Swedish students? negative performance and results in mathematics has been discussed. It is agreed that a change in teaching methods is necessary in order to solve this issue. Thus we found it interesting to take a closer look at an alternative way of teaching. The purpose of this study was to find out what teachers and students associate concrete mathematics with and make a comparison between them.

Försöksmetod för automatisering av kvalitetssäkring av SKB

Within all industries, there is a change in working time required; this also includes the construction sector. However, the way construction sectors are differentiated is by not having been given the opportunity to be practiced or tested.  The aim of this thesis that we have done in collaboration with the Concrete Industry was to investigate the possibility of developing an automated method for quality assurance of SKB at the site. The idea is to make the O-funnel to be more utilized and therefore ensuring that the appropriate concrete quality is provided which eventually would lead to a better development in the production process.The project has involved theoretical work and laboratory experiments. The theoretical work gave us a good foundation at the beginning of the project. After gathering the information and material, the laboratory experiments began by SCC in their laboratory in Hammarby. The collected data from the various laboratory tests formed the foundation for trying to relate measurements for consistency of SCC with each other and therefore find out how measurements from O-funnel varies with different concrete mixtures.

Applicering av obligationsfinansiering i börsnoterade fastighetsbolag - En kvalitativ studie av säkerställda obligationer

New rules for bank capital adequacy were introduced in 2013. This caused a changein funding of real estate companies. The bank could not cover as much of thecompanies funding?s as before and they had to explore other funding opportunities,such as bonds. Bond funding in Swedish real estate companies regularly consists ofunsecured corporate bonds and the secured ones are not that common.

Gåva av utdelningsrätt

?I uppsatsen utreds Adjudication Bond, vilket i Sverige är en ny typ av bankgaranti. För attbedöma denna görs en jämförelse med hur bankgarantier som rättsligt institut förhåller sigtill svensk rätt. Bankgarantier används både i Sverige och internationellt. De utgör säkerhetför ett underliggande avtals riktiga fullgörelse.

James Bond och Bondbruden - En relation i förändring? : En jämförande analys av Bondfilm anno 1965 och 2006

Hur har framställningen av Bondbruden och James Bond förändrats sedan 1965? På vilket sätt påverkar eventuell förändrad syn på maskulinitet det feminina, samspelet dem emellan, och hur kommer detta till uttryck i Bondfilmen? Syftet med denna uppsats är att med hjälp av det populärkulturella fenomenet James Bond undersöka framställningen av det feminina och maskulina, hur detta kan tänkas ha förändrats de senaste femtio åren. Med hjälp av kvalitativ metod med inslag av semiotik har jag studerat en Bondfilm från mitten av 60-talet och en från mitten av 00-talet. Jag har kontextualiserat med hjälp av postfeminismen samt filmdiskursens ansett ?klassiska? manliga och kvinnliga karaktärsdrag och egenskaper.

Bestämning av skjuvhållfasthet med vridprovning för pågjutna betongkonstruktioner

Skador och slitage på brokonstruktioner av betong beror på tösalter, armeringskorrosion och frostcykler i kombination med ökande trafiklaster. Den i särklass vanligaste reparationsåtgärden för dessa typer av skador är att göra en pågjutning. Metoden går ut på att först avlägsna det skadade eller dåliga betongskiktet innan en ny betong pågjuts. För att bedöma hur bra ett pågjutningsarbete är behöver vidhäftningen mellan den nya pågjutningen och gamla betongen fastställas. Den mest använda metoden för detta syfte är s.k.

Empirisk undersökning av aktieindexobligationer : Till vilken grad tar innehavaren del av underliggande index avkastning?

The purpose of this essay is to evaluate stock index bonds return to risk ratio in order to investigate to which degree an investor in a stock index bond take part of the underlying index return and what the investor must pay for the security of not losing his funds. In order to carry out this evaluation an average return per year and the Sharpe ratio will be calculated and a mean- standard deviation analysis will be made. All investigated stock index bonds are based on a Swedish underlying asset.The results show that the stock index bonds haven?t generated a higher risk adjusted return than its underlying asset. The stock index bonds took part of 57 % of the underlying assets return, and the loss of 10 percentage points per year for the stock index bonds compared to its underlying asset can be seen as the cost for the guarantee a stock index bond gives..

Företags motiv till finansiering med realränteobligationer

The long-term external financing of a corporation is satisfied through the bond market where issues of index-linked bonds, which are discussed in this thesis, is one alternative. (Finnerty&Emery 2001) An index- linked bond is a debt instrument where the investor is guaranteed the principal and premium amount in real terms. As the bonds cash flows are indexed to the inflation this implies that the issuer of an index-linked bond assumes an inflation risk. Purpose: The purpose of this thesis is to describe and examine corporate motives for choosing index-linked bonds as way of financing their business. Realization: Primary data was collected through interviews with corporate issuers of non-swapped index-linked bonds.

Stenmjöl eller naturgrus i betong : En jämförande studie

 The objective of this thesis is to examine the difference in workability in fresh concrete, when crushed fine aggregate replaces natural gravel. The shape of the fine aggregate,  packing and flow of six crushed material and three natural materials will be determined by easy studies, the results will be compared with a slump cone test..

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