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11690 Uppsatser om Filler; comminuted material used in concrete - Sida 11 av 780
Vinterträdgårdar ur ett byggperspektiv : En undersökning om byggandet av vinterträdgårdar
The purpose of this of this essay is to explore the construction of a conservatory that is livable allyear around. When you build a conservatory there are several factors that need to be regardedthat usually are of no importance when you build a regular conservatory. The glassed facadeneeds to have a very good U-value and all the parts of the facade need to be isolated and theconstruction needs to prevent thermal bridges.In this essay we will start by looking at the shape of the conservatory. Due to the façade consistsof glass the conservatory will need to have a good ratio between the area and the façade so thatthe heat losses will be at a minimum. However, due to the fact that one of the sides of the façadeis connected to the warm house, you quickly realize that the shape of the conservatory is of noimportance.There are two common ways to build a foundation for a conservatory, a molded concretefoundation and isolated wooden beams.
Produktutveckling av flytbarhetsutrustning
Detta examensarbete omfattar produktutvecklingen av en komponent till en mätutrustning som ska mäta flytbarheten hos smält metall. Arbetet har utförts hos Bryne AB och har lett fram till koncept-, material- och tillverkningsförslag för komponenten. Arbetet har även utvärderat ett för gjuteribranschen nytt formmaterial som alternativ till dagens gjutsand. Tester har gjorts för att se om återvunnet (material x) går att använda som formmaterial till högtemperaturapplikationer..
Att gå från det konkreta till det abstrakta, att det blir konkret för barnen. : En undersökning om hur lärare använder och värderar laborativa material i matematikundervisningen i skolår 1-3
Syftet med detta examensarbete var att undersöka hur lärare använder olika laborativa material i sin matematikundervisning i år 1-3 och hur detta överensstämmer med det sätt som upphovsmännen till materialen avser. Mina frågeställningar har bland annat varit: Vad är laborativa material?, Hur använder lärare laborativa material i matematikundervisningen i år 1-3?. För att söka svar på dessa frågor har jag genomfört en litteraturstudie, och en kvalitativ intervjustudie med åtta lärare som använder laborativa material i sin matematikundervisning. Resultatet visar att det finns skillnader mellan hur lärare använder vissa laborativa material och hur materialens upphovsmän beskriver att materialen ska användas.
Konstruktionsleken ur pedagogers perspektiv. : En studie om hur pedagoger tänker och arbetar när det gäller konstruktionsleken i verksamheten.
The purpose of this study was to examine how teachers act when it comes to play with constructions in preschool. The purpose was also to find out what kind of material the children have to work with and what they do with the things that the children made. The study was based on qualitative semi-structured interviews. Semi-structured interviews was choosen to get out as much information as possible, with open questions in a semi-structured interview you can get the information that is relevant for the study. The results show that there are different kind of material available in preschool, but knowledge of the subject is missing and demanded by teachers. The material are pretty similar, some of the teachers use material from the forest while others don?t.
Laborativ matematikundervisning i årskurs 5 : En jämförelse mellan lärare och elevers uppfattning angående användningen av laborativt material
Under de senaste åren har intresset för användningen av laborativt material ökat markant. Syftet med denna studie är att ta fram och göra en jämförelse mellan lärare och elevers uppfattningar och åsikter angående användningen av laborativt material i matematikundervisningen. Studien har genomförts på fyra lärare i Örebro samt deras klasser i årskurs 5. Resultatet visar att laborativt material underlättar lärandet, gör matematiken roligare och mer intressant, för många enligt både lärare och elever. Lärarnas och elevernas uppfattning om hur ofta laborativt material plockas fram och då finns tillgängligt skiljer sig åt.
Husproduktion, kritiska skeden i produktion
As a newly graduated student in construction you rarely have as much knowledge as you wish you had. It is a complicated line of business that requires knowledge and understanding of both technical solutions and interaction between actors. It is impossible to be fully learned and with that much unknown it can be hard to know where to start. This report is one step in the right direction. It contains a planning that contains construction and installations for a one level house in Kiruna with its different choices motivated.
Temperatursprickor i ung betong : Utvärdering av projektering och utförande av åtgärder, samt utveckling av dimensioneringsmetod för kylsystem
The report contains three parts. The first part is a summary and overall presentation of thermalcracks and preventing measures against such cracks. This is a theoretical part where theinterested designer can get acquainted with various alternatives, be guided to more detailedliterature, and receive some practical information regarding the design of the respectivemeasures.The second part deals with calculation of the risk for thermal cracks and design of water coolingas a limiting measure. Two complementary methods are reviewed for efficient calculation:?the handbook method CraX1(by Lulea University of Technology) is used for quickverification?finite differential analysis in the calculationtool ConTeSt Pro for more precise projectingHere is also presented a development of existing standards through design of the cooling systemby means of the Bernoulli equation.
Köldbryggor och energiförluster. En studie om energiförluster genom balkonginfästningar och deras betydelse för byggnadens totala energibehov
In this report the balconies? abutments for a property in Bo01-area in Malmö has been studied. The property which is called Vitruvius contains four build-ings where two of them have corbelling balconies with intermittent abutments. With intermittent abutment means that the 50 mm thermal bridge insulation that the balconies is equipped with, is broken regularly by a 300 mm concrete heel. The reinforcement bar that holds the balcony runs through this heel.
En givande undervisning i problemlösning för andraspråkselever : En studie i årskurs 3 vid en mångkulturell skola i södra Stockholm
Thanks to I have got to explore different teaching ways around the problem solving in a year 3, in a multicultural school which is located south of Stockholm, I have been able to answer my question at issue in my degree work. My question at issue on this investigation and the purpose with my degree work was to explore different teaching ways that promotes pupils with another mother tongue than Swedish, to develop reading comprehension and to get a better understanding of mathematical concepts in problem solving tasks. On this investigation have I chosen to teach these pupils to explore, reach and gain a deeper understanding of what teaching about problem solving promotes these pupils. I have when it concerns choice of method and material collections assumed from a qualitative investigation and gathered the material with help from participation notices and interviews. I have in my investigation reached the conclusion that those pupils with another mother tongue than Swedish developed reading comprehension and got a better understanding of mathematical concepts in problem solving tasks by being taught in a creative and varied teaching. A creative and varied teaching as I taught those pupils in contained:the pupils had to work with living-related problem tasksthe pupils had to work in pairs to resolve problem solvingthe pupils had to work in larger groups to resolve problem solvingthe pupils had to work in a creative way, by writing and drawing pictures and do their own mathematical fairy tale in problem solvingthe pupils had to work with manipulatives to resolve problem solving in half classes..
Fuktskador i ytterväggar på grund av vattenintrång
Moisture damage in buildings is a serious issue that leads to problematic consequences and high economic costs. Despite the knowledge and awareness existing about moisture problems, extensive damager still occurs today. Studies of moisture in the exterior wall constructions shows that the issue if often caused by rain and water intrusion. These kinds of problem result in major costs usually because the companies have to replace the material and structural components and also in some cases tear down large parts of the buildings.The work includes moisture theory and descriptions of four different exterior wall constructions, wood stud wall with plastered facade, exterior wall with wood facade, exterior wall with concrete, and exterior wall with brick facade. Our thesis work describes how the constructions are affected and moisture damage due to water intrusion.
Elevers uppfattningar om laborativt material i matematikundervisningen
Syftet med denna studie var att ta reda på elevers uppfattningar om laborativt material i matematikundervisningen. Även hur liknande form av undersökning kunde gynna läraren till att få reda på vilken typ av undervisning som eleverna föredrar. Motivationen som låg till grund för studien var erfarenheter utifrån VFU (verksamhetsförlagd utbildning) samt erfarenheter av forskningslitteratur. En stor del av forskningen har påvisat att elever som arbetar med laborativt material i matematik presterar bättre än elever som inte arbetar med laborativt material. Därför förespråkar forskningslitteraturen inom detta område att lärare borde arbeta med laborativt material under alla åren i skolan.
Att be om hjälp utan att fråga
This report is our Master thesis. Our work has taken place at a one-stop-shop
in Sölvesborg during the spring of 2002. We have conducted ethnographical
studies concerning the one-stop-shops frontdesk and telephone exchange. During
these studies we became aware of some differences under which the daily work
was to be carried out. When operating the switchboard the staff usually work
alone and perform the tasks individually.
Temperaturstyrning av aluminiumextruderingsprocess
In this final thesis a rough description of aluminium extrusion is made, the importance of temperature of both the raw material and the extruded profile for a good profile quality. The difficulty in controlling these temperatures are discussed and attempts to increase the control are described. The attempts are basically made by controlling the furnace that is heating the raw material. This is done in a manner that the raw material reaches its final temperature shortly before it is extruded. An IR-camera at the press can be used for profile temperature measurements.
Uppfödning av gyltor till hållbara suggor
Half of Sweden?s 140 000-150 000 sows are culled and replaced by 75 000 gilts annually. Culling of old sows is necessary and allows new breeding material to enter the herd. However, many of the culled sows are young, and have not yet become profitable at the time for culling. Therefore, it is an important question for the pig industry, how to raise gilts to sows with a high and sustainable production level.
Intressemakt - Relationen mellan stat och intresseorganisationer i demokratiteoretisk belysning
Which general outlines are preferable in the relation between organizations and government? From normative theory and method I throw light upon this question by defining and comparing two different democratic standpoints. The substantial democratic standpoint focuses on political effectiveness and the procedural democratic standpoint focuses on equal representation. The normative discussion aims at comparing how well the different standpoints function in political praxis. Since the ambition is to discuss concrete praxis I have also chosen to analyse an extensive case of interest influence in Swedish politics empirically.