Pouring and Finishing an Exposed Aggregate Walkway ...
Jan 06, 2010· If your repair material contains only fine sand and no larger aggregate, the depression will reappear during the washing process. Any fillins or repairs must include rocks in order to blend in with the rest of the pour after the aggregate is exposed. Side Note 4. Landscaping and Other Hazards. Green (uncured) concrete is susceptible to staining.