Measure the dry ingredients and place them in wet mixing container, such as a large bucket, wheelbarrow, mortar box or cement mixer. Add two parts cement, one part hydrated lime and nine parts building sand. Add concrete pigment to the mortar mix for colored mortar.
Stir the dry ingredients until well mixed.
Add a small amount of water to the dry ingredients, continuing to mix. Stir in additional small amounts of water gradually until a thick but consistently moistened mixture is achieved. The thickness should have a consistency just slightly less thick than peanut butter. If any dry, crumbly bits remain, add another small amount of water.