Infill walls is a proven method of constructing a buildings envelope that is the layer separating the outer environment from the inner. Infill walls are generally made of steel, wood or reinforced concrete. Regardless of its material structure, the infill wall is a non-bearing wall with the sole purpose of closing a buildings perimeter and supporting, in addition to its own weight, also that of the cladding. The company cooperating in this report is currently managing projects in Uppsala where infill walls are the primary choice for outer wall constructions. However, these infill walls can either be built on site or ordered as prefabricated, without clear preference. When choosing a method of infill walling the main concerns are economy, logistics and working environment. This gave birth to the idea of comparing these methods of infill walling to try and determine which method is most suitable for a certain type of project, focusing on the aspects of economy, logistics and time consummation. The approach of the comparison, and the study as a whole, has primarily been conducted as field observations and interviews to various extent. In addition to field-related work, invoices and production schedules of each project has been studied in an attempt to obtain as much information on costs and time consuming activities related to the infill walls as possible. The total costs, including pure material costs and wages, divided by the area of each studied infill wall, results in a cost per square meter infill wall. Similarly, a capacity per hour is calculated by dividing the area of each studied infill wall by the sum of the calculated expenditure of time. The calculated parameters allow for an objective comparison between the two different methods of infill walling. Furthermore, the aspects that are not directly connected to time and economy can be evaluated subjectively to obtain an extensive view of the work related to infill walls. The results of the comparison indicates that prefabricated infill walls are a faster, but somewhat more expensive, way of constructing outer walls than on-site built. The purchase price related to on-site built infill walls is a great deal lower than that related to prefabricated. However, the capacity of on-site built infill walls is more than 4 times lower than prefabricated, which means that the definitive cost per square meter is merely 4,1 % lower for on-site built infill walls than that of the prefabricated.
| Identifer | oai:union.ndltd.org:UPSALLA1/oai:DiVA.org:uu-396004 |
| Date | January 2019 |
| Creators | Nilsson, Jonas, Forsberg, Anton |
| Publisher | Uppsala universitet, Byggteknik, Uppsala universitet, Byggteknik |
| Source Sets | DiVA Archive at Upsalla University |
| Language | Swedish |
| Detected Language | English |
| Type | Student thesis, info:eu-repo/semantics/bachelorThesis, text |
| Format | application/pdf |
| Rights | info:eu-repo/semantics/openAccess |
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