Aigó is a hydrochromic concrete pavement. It means a ground with concrete base and texture and hydrochromic surface that is thought to cover considerable extensions of inner pavements. It changes its color when in contact with water, so it helps to see when liquids on the floor. This avoids the user to slip with water and get injured; it also avoids the entire house to be dirty because some liquid in the floor has been stepped unnecessarily; or it even avoids forgetting to clean any space when cleaning the pavement.