ICPI Issue 2 2019

 Continued from page 14

over the pavement, regardless of joint size and depth. “We install a lot of permeable pavers and offer maintenance agreements for them,” says Mr. Otero. “Unfortunately, by the time most customers ask for maintenance, the amount of sediment in the joints requires a restorative cleaning rather than simpler routine maintenance.” To handle larger, more complex jobs,

he experimented with a variety of vacuums and vacuum trucks, but settled on a less expensive, more portable machine that can remove aggregate and debris from PICP joints in one pass. “I modified a Ditch Witch FX-20 that can be towed behind a pickup truck and be taken into areas that don’t accommodate larger equipment,” says Mr. Otero. College

campuses that use PICP in common areas, walkways and patio areas, and small parking lots are two examples At a demonstration in St. Louis, the TYPHOON on the right blows out sediment and soiled aggregate from the joints. A vac machine on the left picks up the withdrawn materials and sends them to a sewer truck.

COVER STORY FEATURE STORY

Issue 2 • 2019 ® esign interloc 15

Before and after cleaning with the FX-20.

BEFORE

AFTER

A modified Ditch Witch FX-20 cleans PICP.