@midwestmodernai: Why are they washing brand-new concrete? 👀 This is how exposed aggregate concrete gets its finished look. A surface retarder keeps the top layer of cement paste soft while the slab hardens underneath. Then the surface is washed and brushed away to reveal the decorative stone already embedded in the concrete. Exposed aggregate concrete explained | How to finish concrete | Concrete surface retarder | Concrete patio finishing | Decorative concrete | Concrete construction #Concrete #house #ConcreteFinishing #Construction #homerenovation @SRM Concrete