“White” Pavement For “Green” Buses
SONOMA COUNTY TRANSIT IS REPLACING DETERIORATING ASPHALT
At its Santa Rosa, CA bus yard with reinforced concrete “white” pavement. The upgrade was made to accommodate new environmentally friendly “green” buses powered by compressed natural gas (CNG). The original facility was built in 1983 to refuel, wash and maintain its fleet of diesel vehicles now being replaced with the CNG buses.
The job to remove the old asphalt and replace it with concrete was awarded to Team Ghilotti, a grading, paving and underground utilities contractor located in Petaluma, CA. Steve Mack, Field Coordinator for Team Ghilotti, was given the assignment to find a concrete finishing screed suitable for placing over 1,200 cubic yards of 10” thick “white” pavement. Although Mack had previous field experience with screeds, he was not familiar with current machines available in the marketplace.
A common purchasing procedure today, Mack began his hunt for a new machine by searching the Internet. His research revealed many competing manufacturers/brands, but Mack says his “mechanical mind” steered him to the Speed Screed® from Metal Forms Corporation (MFC). Mack trusts his mechanical knowledge and instincts based on 25 years experience as a heavy equipment repair mechanic and service manager coupled with 15 years of construction management.
“From a functional point of view, the design of the Speed Screed® impressed me,” comments Mack. “The square finishing tube design (vs. angle blades) not only increases the life of the machine, but it also makes it easier to clean. I was also impressed with the functional winch design since it was direct drive requiring no belts.”
The extensive Internet search led to the purchase of a Speed Screed® Cruiser™ with extensions allowing variable paving widths and crown variations. Modular 2 ½’, 5’ and 10’ screed sections were used to place slabs from 20’ wide to 46’ wide while also allowing adjustment for parabolic crowns as well as inverted crowns (for drain inlets). The performance of the Speed Screed® impressed Team Ghilotti and also the Sonoma County inspectors which reported that all test cylinder breaks exceeded psi requirements. Mack commented that “our carpenters, masons and laborers all approved and appreciated the Speed Screed® for its ability to place concrete with less effort while producing a very professional finished product.”
Not only did the Speed Screed® live up to his expectations on the job, but Mack was also impressed with the customer service provided by MFC. “We had some initial clutch problems, but Kathy Karth at the home office helped us resolve the issue in a very satisfactory manner. As it turns out, it was a mistake made in the field set-up, but, nevertheless, MFC shipped out a clutch overnight at no cost to Team Ghilotti.”
“Green” buses traveling on “white” pavements is now a reality in California due to the Internet, a mechanical mind, exceptional screed performance, responsive customer service and good communications between Team Ghilotti and MFC.
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