Texture of the soil can be changed by

Soil texture is an important soil characteristic that influences the overall productivity rate of crops. Soil texture is usually a complex size distribution represented by the relative proportions of the three particle-size fractions i.e. sand, silt and clay.
Soil texture can be changed by adding other soil materials whether it's sand, silt, or clay. It cannot be changed and is affected by the use of fertilizer, pesticides and tillage practices.