2014 Industrial Winner

In the spring of 2013, LeChase Construction, the general contractor on the Ampehnol Aerospace Manufacturing project, asked The MJA Co., to submit a polished concrete proposal. The spec called for a polished concrete contractor to take a freshly placed slab in a new building to a 400-grit sheen level. There were 12 qualified polishing proposals submitted.

Even though The MJA Co. was not the lowest bidder, the contractor was awarded the job based upon their 16 years of polishing experience, their reputation of excellent craftsmanship, and the results of their mock-ups. Vic Scotese, northeast regional sales manager for L&M Laticrete, got L&M’s FGS PermaShine polished concrete system in the specification.

“I knew we needed to get The MJA Co. involved,” says Marty Harrington, a L&M Laticrete sales manager in the New England region who helped secure the job.

The project schedule was tight—the timeline called for 200,000 square feet of concrete to be polished and approximately 30,000 linear feet of control joints to be filled, with more than 1000 linear feet of perimeter joints and diamonds around columns. Project staff included 10 field personnel and working supervisors. Project managers scheduled polishers to work in two shifts of 10 hours each.

Once the slab’s imperfections were corrected, it was ready for polishing. After some experimentation, the crew decided on the following diamond grit chain: 100 resins wet; followed by 200 resins wet; and then 400 resins dry. Some floor areas required 50 resins wet, continuing on to the rest of the diamond chain. All resins were SASE’s Zenith pads. After the 400 resins, the surface was hardened, densified, and dustproofed with L&M’s FGS Hardener Plus. Finally, the crew applied L&M’s Permaguard to protect the new floor from staining.

Communication key to success
The MJA Co.’s Mark Finch coordinated and facilitated communication between all stakeholders including the manufacturer, the distributor, the general contractor, the owner, the project managers, and site supervisors. This ensured timely project completion under a difficult deadline. (The project was completed March 2014.)

“It was the largest polished concrete flooring project I have ever been involved with, and it went off without a hitch.” Says Harrington. “It was a pleasure to work with the MJA crew and witness the expertise with which they performed. It has already resulted in additional projects being awarded where we can continue to work together.”