The present disclosure describes modular blocks configured to give the appearance of natural or
cut stone. An aesthetic
coating composition may be applied to one or more surfaces of a block having a low-density, such as an
insulating concrete form (ICF), to form an modular block having the appearance of
cut stone. The aesthetic
coating composition includes a binder component, such as a cementitious binder made from
white Portland cement, or a
polymer binder such as an acrylic binder, an aggregate component, such as a limestone aggregate component, and optionally an
adhesive component. The aggregate component includes a fine sand portion and a coarse sand portion that effectively enable the appearance of
cut stone after finishing of the aesthetic
coating surface via sanding,
polishing, sandblasting,
acid etching, acid finishing, or exposed aggregate finishing.