<p>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.</p><p>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.</p><p>Concrete batching companies must therefor experiment with different amount of superplasticizer in order to meet the specified slump and strength.</p><p>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.</p><p>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.</p>
| Identifer | oai:union.ndltd.org:UPSALLA/oai:DiVA.org:hh-938 |
| Date | January 2007 |
| Creators | Norén, Sara, Axelsson, Sandra |
| Publisher | Halmstad University, School of Business and Engineering (SET), Halmstad University, School of Business and Engineering (SET), Högskolan i Halmstad/Sektionen för Ekonomi och Teknik (SET) |
| Source Sets | DiVA Archive at Upsalla University |
| Language | Swedish |
| Detected Language | English |
| Type | Student thesis, text |
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