Samband mellan MCV och vattenkvot för morän med finjord innehållande silt

Sammanfattning

In the context of sustainable civil engineering, increased use of local soil resources suchas glacial till (morän) is crucial. However, its heterogenous composition and the impact ofwater content on the packability of glacial tills, make it challenging to use in construction. This thesis investigates the relationship between MCV (Moisture Condition Value) andwater content for various types of glacial tills. The aim is to evaluate whether the MCVmethod is a reliable tool for estimating the water content of silt bearing glacial till. Three soil types were analyzed in laboratory tests: sandy silt till, silty sand till andgravelly sand till. The results show a strong linear correlation of 𝑅2 > 0,90 betweenMCV and water content for all soil types. A higher silt content resulted in a steepercalibration line, indicating reduced sensitivity to variations in water content. The resultsfrom particle size analysis showed that coarser soils exhibited water leakage at lowerwater content levels due to higher permeability, which reduces the measurable range ofwater content during a MCV-test. The study concludes that the MCV method is a practical and rapid tool for assessingwater content in silt bearing tills, with potential for significant time and cost savings inconstruction projects.