Grand Housing Development Program Volume III - Gtz

PAVING WORKCrush and chisel natural stones to exact dimensions. Do notchisel conic stones!Main lines as rainwater ditches, borders and openings forgreenery are laid first. Ensuring overall level and slope.Edging has to be placed at the borders of the pavement tokeep the stones together.Prepare ground on exact level. Use cords, levelling boardand spirit level to ensure exact level and slope of the surface.Laying of stones in sand. The stones are pressed into thesand by careful hammering.Use cords to keep straight lines.- Preparation of ground- Laying of main lines- Laying of paving stones- Flushing with fine gravel and water- Use proper material for ground preparation andflushing. Ensure minimum slope to prevent rainwaterfrom staying- Ensure proper flushing to achieve durability of thepavement by well compacted fine gravel in rabbets.66Addis AbabaCity Government