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Vi har i detta examensarbete utfört samtidig mätning av värmeutveckling (hydratationshastigheten) och relativ fuktighet (självuttorkningen) hos hydratiserande cement. Denna studie har gjorts på fyra grundrecept med olika cement där vatteninnehållet har varierats för att få olika självuttorkning. Mätningarna av relativ fuktighet är utförda med RF-sensorer som ger utslag i millivolt som därefter omv
Östra Tommarp is the name of a small village situated outside Simrishamn in eastern Skåne. Bioagro-life is an ongoing project sponsored by the EU. The main ambition is to eliminate carbon dioxide emissions from the process of heatproduction. The project will produce a more environmental friendly alternative to present use of burners with oil as fuel. The heating of the facilities within the villag
We have in our thesis examined energy system for small houses for Skanska Teknik AB. The environment is a current issue in our society and buildings from the past are rarely energy effective, since many houses built during the seventies had heating based on oil or direct electricity. In new buildings it is more and more important to be energy efficient, to meet the demands from our future environm
The independent engineer In the current financial crises, a vacant job is an article in short supply. Good competence and academic titles are no longer a guarantee to receive an employment after examination. These circumstances require a capacity to see opportunities outside the box. When the labor market no longer can offer any jobs, there is two alternatives. Await an opportunity or create an op
Railway detail planning is divided in seven major technical branches; ground works, track, power supply, catenary, signalling, telecommunication and cable-trenching. Technical consultants perform detail planning at the request of a client, usually the Swedish Rail Administration (Banverket). The work results in design and other technical documents. According to common public opinion the quality in
“Comparing Apples & Oranges – A Life Cycle Perspective on the Energy Requirements in Swedish and British Columbian Building Codes” The requirements to decrease the energy use in a building vary in the building codes. “British Columbia Building Code” (BCBC) prescribes a nominal thermal resistance of insulation, while “Boverket’s Building Regulations” (BBR) requires an annual specific energy use
Bodar förbrukar mycket energi, varav en ansenlig del skulle vara möjligt att spara. Det finns regler och lagkrav som måste vara uppfyllda. Specificeringen av hur mycket energi det skulle vara möjligt att spara samt undersökningen av hur väl efterlevda lagarna är, utgör denna rapports syfte. Metoden som har använts är främst litteraturstudier och e-postutväxling med platschefer. Rapporten behandlar
Presence of lactic acid bacteria on a beer brewery The purpose of this thesis is to help a brewery solve a mayor problem regarding the quality of their product. The brewery has for a considerable amount of time had a problem with the presence of lactic acid bacteria in their product, which has caused it to acid long before the expiration date has passed. The root of the problem could be establishe
NCC’s main objective is to reduce their production costs by 5 % each year until 2012. Taking this into consideration, studies have been made to investigate the efficiency on today’s construction sites. There are certainly a considerable number of factors that contribute to today’s inefficiency on the construction sites. Our main objective with this report is to locate these factors, investigate th
Denna rapport har som uppgift att gå igenom hur den nya krypterings och komprimeringsalgoritmen SCAM har utvecklats. Kryptering och komprimering är två vanliga begrepp inom datateknik och det finns många olika typer av algoritmer inom båda områdena. Rapporten går igenom en möjlig kombination av dessa två begrepp till en enda algoritm. Under projektets gång så har två nya algoritmer utvecklats, en
Eftersom det går åt mycket energi för att tillverka asfalt, så är det viktigt att undersöka om det finns möjligheter att minska energiåtgången. Därför har detta examensarbete tillsammans med Peab Asfalt gjorts, för att undersöka möjligheterna till sänkt tillverkningstemperatur. Detta examensarbete syftar till att undersöka om det är möjligt att sänka tillverkningstemperaturen med 30 °C för varmtil
Track switches are vital parts in the railway construction. They meet an important feature when planing and stearing the traffic flow through them to increase capacity. To ensure functionality during winter they have since the 50- century systematically installed switch heating with different technical solutions but with the same objective, to keep the moving parts on the switch free from snow and
Fiberbar manufactures glass-fiber reinforcement that is intended to be used in different types of structures, such as buildings and bridges. In order for the reinforcement to fulfill it’s purpose. It’s requires that the reinforcing and concrete interact under load. Earlier trials have shown that the anchorage between the concrete and glass fiber reinforcement is substandard for Fiberbar AB's p
In the 1960:s the Swedish government approved a decision that led to the construction of about one million households during the years 1965-1975. Today these buildings are both deprived and suffer from high energy consumption. To address these problems individually is very expensive. If it instead is done simultaneously substantial savings can be made. The company AB Helsingborgshem owns and manag
For a successful project of urban wind power requires wind as well as attachments, sound level and the requirements and regulations should be taken under consideration. But a lot of experience is still lacking and many projects fail therefore. This report covers the aspects described above and a summary of experiences and knowledge gaps have been made with the aim of facilitating the planning phas
Kustnära putsade fasader ställda mot havet har av rapportförfattarna observerats vara i sämre skick än fasader med riktning inåt landet i samma miljö. Detta leder till hypotesen att saltvatten påskyndar nedbrytningen av kalk/cementbruk genom saltsprängning eller annan form av vittringsprocess. Ingen form av kemisk nedbrytning är rimlig då salt inte reagerar med putsens vanliga beståndsdelar. SvensOf rendered façades in coastal environment Rendered coastal-facing façades have been observed to be in worse condition than those facing away from the coastline in the same environment. This leads to the hypothesis that salt water accelerates the deterioration of render, either by salt blasting or through other forms of weathering processes. Since salt does not react with common render components,
In order to plan and control a military simulation, there is a need for a language which can be understood by all parts and levels of the organization - both man and machine. This need has encouraged the development of a highly structured and unambiguous language. The term for this type of language is Battle Management Language. The United States military has further developed the concept into an
The purpose of the present thesis is to investigate the foundations for statehood and self-determination—two seminal points of international law—through the concept of discourse and its notion of power. The starting point is that language and representations of reality are not merely ‘objective’ depictions, but in fact shaped by the practices that convey the representations. This constitutes the t
