Local Road Management Manual 222 Table 7.10 Crack and Joint Sealing of Concrete Pavements Purpose To prevent entry of water, debris and other incompressible materials into cracks and joints and allow the free movement (expansion or contraction) of the pavement. Procedure 1. Heat asphalt to proper temperature, if hot asphalt is used. 2. Remove incompressible materials from cracks or joints, including old filler and blow cracks or joint clean. 3. Pour asphalt in crack or joint to within one-half cm of pavement surface. For large cracks, fill with bituminous pre-mix / aggregate and asphalt. Do not overfill. 4. Remove any excess asphalt by squeegeeing. 5. Check to be sure asphalt do not seep underneath the pavement and that cracks remained filled. Apply cover sand. Notes • Heat asphalt to adequate temperature (180-200). • Clean or blow thoroughly dust and mud in cracks and joints. • Further, remove damaged loose part of surrounding areas. • Pour asphalt in cracks or joints kept in dry conditions. • Causes of cracks should be identified and corrected prior to sealing works.