In other words we can define liquid limit as So the amount of water which is responsible for this state of consistency of soil is called liquid limit of soil. When the soil reaches liquid consistency state, it has remain no cohesive strength to retain its shape under its own weight. If we continue to add more water then again the soil will change its state of consistency from semi hard to plastic and finally reach a liquid consistency stage.
If we add water to a fine grained soil, then water will change its consistency from hard to semi hard. When water is added to dry soil, it changes its state of consistency from hard to soft.
