552 uppsatser · sida 3 av 37
… for grain handling have been used in the study, a truck container system, concrete platform, a loading bin - one for indoor use and one for outdoor use, and a plant for drying and storage of grain. The grain handling costs consists of a capital cost and a variable cost when …
… 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 …
This report will try to evaluate the use of rented concrete casting moulds, which are used to build walls and system of joists. The evaluation is only examining the economical aspects. The cost of using concrete casting moulds is a big part of the total production expenses …
… three periods, winter, spring and summer. It also investigates which effect a concrete wall has on the thermal climate in a greenhouse. The purpose of putting a concrete wall in the greenhouse model is to investigate the possibility to store heat during the day and then use this …
Sprickbredders beroende av betongkvalité, tvångseffekter och armeringshalt
Abstract Concrete foundation slabs are usually exposed to unilateral drying during the curing process. The unilateral drying causes an axial shrinkage and a concave curvature of the construction. The curvature results from the fact that the upper part of the slab is drying and …
<em>Ett modernt dimensioneringsproblem för huskonstruktörer</em>
… about vibrations due to human activities. Floor-systems, consisting of concrete slabs supported by steel or concrete beams, have been investigated with simulations in the finite element program Abaqus. In the simulations, the influence of various factors on the natural frequency …
En studie av BREEAM Communities praktiska tillämpning i svensk stadsbyggnad
… exposed to pure tension. Cracking caused during the time of dehydration in concrete slabs is the most common defect according to statistics made by CBI[1], which provides numbers as high as 35 % of all the defects caused on slabs are generated by cracks. Comparisons between …
Analys av skillnader mellan BBK 04 och Eurokod 2 med tillämpning av svenskt och danskt nationellt annex
… exposed to pure tension. Cracking caused during the time of dehydration in concrete slabs is the most common defect according to statistics made by CBI[1], which provides numbers as high as 35 % of all the defects caused on slabs are generated by cracks. Comparisons between …
… the relevant product names; meaningful and meaningless brand names as well as concrete and abstract words. This study aims to combine product names that are both practically and theoretically relevant. Four different product names have been examined within the chosen category …
<em>Materialförsök och modellering</em>
Idag är intresset för högpresterande betong (HPB) växande runt om världen då fördelarna är många, eftersom slankare, tätare, starkare och lättare konstruktioner kan tillverkas. Detta examensarbete handlar om materialförsök och modellering för en typ av HPB som ska användas i …
En jämförelsestudie mellan två modelleringsprogram
… of the study was to examine only the usability of the foundations of in situ concrete. The work examined three main areas within the design process. The first was to model the concrete elements then to model the reinforcing and ultimately production of the drawings. Because …
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 …
En studie av byggtid och lönsamhet
… 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 …
… method common in prefabrication is a sandwich-construction with two layer of concrete surrounding a core of cellular plastic. Skanska is making this type of walls in a factory on Gotland. We wanted to combine the energy efficiency of passive housing with the efficiency of …
sittmöbel för det offentliga rummet
… sketches, marketing and the making of a prototype. VOX is made in terrazzo concrete. I have obtained information about the material through books, interviews, Internet and by visiting concrete factories. One chapter in this booklet is a summary of my research and is unique in …
