Kroeker Inc. has reduced dust at a sensitive urban job site using portable dust suppression equipment while removing a five-floor concrete, steel and block section of the
Kroeker employed a DustBoss DB-60 to cover more than 20,000 square feet with a high-velocity mist of droplets to trap airborne particulates, effectively preventing dust from creating a nuisance or hazard for the vehicle and pedestrian traffic in downtown
The museum demolition was a delicate job, as Kroeker’s mandate was to completely remove the additions built in 1936 and 1951, preserving the original 1920s structure that was once the home to the Fresno Bee newspaper, which will contain the newly renovated museum.
To better control the dust generated by the project, Kroeker’s Manager of Business Development and Marketing John Call and his crew positioned the DB-60 to spray the face of the building as it came down. The DB-60 has a 25-hp motor that generates 30,000 CMF and throws more than 200 feet.
Kroeker employed several excavators for the job, including two 70,000-pound Link Belt 330 models and a 150,000-pound Komatsu PC650, as well as hydraulic hammers, universal processors and shears at various points. The firm also used a 150,000-pound Hitachi PC450 with an 80-foot reach and a UP30 processor at the tip.
“By having water at the top of the project and mist from the DustBoss draping the front of the structure and ground debris, we were able to provide excellent suppression of airborne particles,” Calls says. Kroeker also emphasizes recycling C&D materials on its projects and is able to recycle 95 percent of the debris it receives.