Technical Resource Guide_WEB_BEL25-D-516650 - Page 19 of 84

19 | belgard ® product installation guide | belgard.com | 877-235-4273 PAVEMENT COMPACTION AND JOINT SANDING Compaction of the pavers and begins the process of vertical interlock by forcing some of the bedding into the joints from the bottom. On small jobs, compaction should take place after all pavers, including cut edges, are in place. On jobs lasting more than one day, all pavers placed should be compacted and the joints filled at the end of the workday. Do not compact or fill joints within 3 ft. of any unrestrained or incomplete edge. Do not spread joint sand before initial compaction of pavement. If using a gasoline powered vibratory plate compactor with a minimum compaction force of 5000 ft. lbs.. Compacting Procedure • Start on one edge of the pavement and compact the perimeter. • Compact in overlapping rows on the rest of the pavement. • Compact the pavement again but in the opposite direction. All pavers will need to be exposed to at least two passes of the compactor. • The operator looks for broken pavers just behind the plate compactor and marks them while compacting. The broken pavers are removed with a paver extractor and replaced with whole units. JOINT SANDING After compaction of pavement and replacement and recompaction of replacement pavers, spread the joint sand. Dry sand works best, so if the sand is damp, allow it to dry. Sweep the dry sand into the joints. Do not use play sand or sandbox sand. After the initial sweeping, the filling of the joints can be expedited by alternating sweeping and passes of the vibratory plate compactor. Continue until all joints are filled. It is a good idea to reinspect a job two to three weeks after completion at which time it may be necessary to re- sweep sand into the joints. Figure 3 Right Compaction sequence working from the perimeter to the center of the pavement. All pavers should have two passes of the plate vibrator over them prior to filling the joints. After the joints are filled with sand, follow the same compaction sequence from the perimeter to the center. It is a good idea to reinspect a job two to three weeks after completion at which time it may be necessary to re-sweep sand into the joints. COMPLETION OF PROJECT When the installation has been completed, clean up the site. Some pavers of each shape and color used may be left with owner for possible future replacement. Store these pavers neatly where the owner directs. Walk the job with the owner and address any problems immediately. Review maintenance procedures with the owner and leave information regarding care and maintenance with him/her.