Exposed Aggregate Concrete - CEMEX USA
Exposed aggregate concrete is a mixture made with specialty rock designed to reveal decorative aggregate when the surface paste is removed while still fresh.
Exposed aggregate concrete has a type of surface appearance where the coarse or fine aggregate portion of the concrete matrix has been exposed at the surface. The principle method for exposing the aggregate on the surface is to apply a retardant to the concrete’s surface, wait the prescribed amount of time and wash the paste from the surface with water. Other methods such as sand blasting, bead blasting, or acid etching can also be used to produce the desired effect.
Exposed aggregate concrete is most commonly used for outdoor applications such as pavements, sidewalks and large pedestrian hardscape areas.
Exposed aggregate concrete creates a durable, long-lasting surface that requires little maintenance over years of service.
Appearance is the most common benefit when selecting an exposed aggregate surface. Typical grey concrete slabs often lack aesthetic appeal that some customers seek. Exposed aggregate concrete surfaces are aesthetically pleasing and often times easier to produce than typical grey concrete. Exposed aggregate concrete can possess a number texture and finishes, ranging from basic sand finishes to high-end terrazzo floors.