Case Study:
Unexpected Conditions. Unmovable Deadline.
A Floor Repair Built Around Both.
How Durable Surfaces adapted to unexpected slab conditions while completing a critical forklift traffic joint repair within a planned weekend shutdown.
3 Days
Weekend Work Window
3PM Sunday
Required Completion
Forklift Traffic
Critical Travel Path
Monday AM
Business as Usual
The Project
A major clothing distributor in Lynchburg, Virginia needed an industrial concrete joint repair along a heavily traveled forklift path. The existing transfer joint had deteriorated, creating an uneven transition for material handling equipment.
Each time a forklift crossed the area, movement at the joint created a jarring transition for operators. Loads could shift, wheels and equipment were subjected to additional wear, and the raised and deteriorating repair created a potential trip hazard. As the existing repair on the joint continued to break down, it was also damaging the surrounding concrete and widening the area requiring attention.
Durable Surfaces was brought in to complete the concrete joint repair, including removal of the deteriorated material, reconstruction of the surrounding concrete and installation of a new transfer joint.
The work was scheduled for a weekend shutdown. Durable arrived Friday for second shift and needed to return the area to the customer by 3 p.m. Sunday so normal operations could resume Monday morning.
The repair appeared straightforward.
Until demolition began.
The Challenge: An Industrial Joint Repair with Hidden Conditions
As Durable removed the existing joint repair, the crew encountered reinforcing steel running directly beneath the joint and unusually close to the surface.
Further investigation revealed something more significant: part of the repair was located over an elevated, engineered concrete slab rather than the conventional slab conditions the team had anticipated. Beneath portions of the repair were significant open voids.
The surrounding concrete was also more deteriorated than could be seen from the surface. As loose and defective material was removed, portions of the repair continued to break away.
Under conventional slab conditions, Durable could have continued removing deteriorated concrete until reaching a sound base. Here, doing so risked disturbing the engineered slab and allowing repair material to escape into the void below.
The conditions had changed.
The deadline had not.
Field Conditions Dictated a New Concrete Joint Repair Plan
Durable stopped to evaluate the conditions and communicate what the crew had uncovered to the customer.
To address the situation, the team developed an approach that would rebuild and stabilize the repair area without unnecessarily disturbing the engineered slab.
Temporary forms were installed to contain the repair material where portions of the slab had deteriorated around the voids. Durable then placed a low-viscosity repair material capable of flowing into cracks and voids within the remaining concrete, helping consolidate the damaged area and create a more stable base.
Stabilizing foam was also used to support the rebuilt joint area and allow Durable to reconstruct the opening to the dimensions needed for the new transfer joint.
Once the base was established, the repair surface was mechanically prepared and leveled for installation.
Because the repair material temporarily spanned the original joint, Durable then re-established the joint through the repaired area. This allowed the adjacent slabs to continue moving independently with expansion and contraction rather than locking the two sides together and placing unnecessary stress on the repair.
The transfer joint was anchored into place, surrounding material was installed and the finished surface was ground flush to provide a smooth transition across the forklift path.
Working Against the Clock
The unexpected conditions added work to a schedule that already had a firm endpoint.
But Durable had anticipated the possibility of field conditions changing the plan.
Rather than beginning Saturday morning, the crew mobilized Friday for second shift, intentionally creating an additional time buffer within the customer’s shutdown window.
After discovering the slab conditions Friday night, Durable communicated with the customer Saturday morning, adjusted the repair approach and continued work. The crew stayed later Saturday to complete material placement and provide enough curing time to begin grinding and finishing Sunday.
The project remained on track for the customer’s planned Monday reopening.
Safety That Stands Up
Cleanliness was especially important to the customer.
As a clothing distribution facility, inventory surrounded the work area, making dust control and housekeeping critical throughout the concrete joint repair.
Durable isolated the work area with protective plastic before demolition began. During concrete cutting, grinding and surface preparation, crews used HEPA-filtered dust collectors and appropriate engineering controls to manage dust.
The work area was repeatedly cleaned between repair phases to remove loose concrete and debris before work continued.
The goal was straightforward: solve the floor problem without creating a new problem for the customer’s operation.
The Results
An Unexpected Repair. An Unchanged Deadline.
Despite discovering significantly different conditions beneath the existing repair, Durable completed the work within the customer’s planned weekend shutdown.
The deteriorated area was rebuilt and stabilized, the transfer joint was installed, and the finished surface was ground smooth and level for forklift traffic.
Just as importantly, the facility was returned clean and ready for operations.
The customer’s building maintenance supervisor praised the crew’s cleanliness and professionalism following the project and began discussing additional concrete repair and grinding work elsewhere in the facility.
“I wanted to take a moment to thank Durable Surfaces for the outstanding work. This was a very long and precise project with many complexities, and the team did an excellent job throughout.
“[The Team] worked tremendously well with me throughout this 36-hour job. I truly appreciate their professionalism, teamwork, and commitment to getting the project completed successfully. I’m looking forward to working with this team again on the next project.”
The Lesson: Plan for What You Can’t See
Industrial concrete joint repairs don’t always reveal their full complexity from the surface.
Existing repairs can conceal deteriorated concrete, reinforcing steel, voids or structural conditions that change what is required once demolition begins.
That’s why successful warehouse and industrial joint repair work requires more than arriving with the right material.
It requires understanding how the slab behaves, recognizing when field conditions require a different approach, communicating those conditions clearly and building enough flexibility into the project plan to respond without unnecessarily disrupting the customer’s operation.
At this Lynchburg facility, the floor changed the plan.
Durable adapted the repair—and kept the customer’s schedule moving.
Have a Problem Floor?
From deteriorating concrete joints and cracks to complex slab conditions, Durable Surfaces provides industrial concrete repair and joint repair services for warehouses, distribution centers and manufacturing facilities nationwide.
Frequently Asked Questions
What causes industrial concrete floor joints to deteriorate?
Industrial floor joints are subjected to repeated traffic, slab movement and impact from forklifts and other material handling equipment. As a joint or previous repair begins to deteriorate, the damage can spread into the surrounding concrete, creating an uneven transition and increasing the area requiring repair. In this project, the deteriorating joint was creating a jarring transition for forklift operators and contributing to wear on wheels and equipment.
How are deteriorated industrial concrete joints repaired?
The appropriate repair depends on the condition of the joint, surrounding concrete and underlying slab. Repairs may require removing deteriorated material, preparing the remaining concrete, rebuilding damaged areas and installing a joint system that allows for necessary slab movement. Because underlying conditions aren’t always visible from the surface, the repair approach may need to change once demolition begins.
Why is slab movement important when repairing a concrete floor joint?
Concrete slabs naturally expand, contract and move. A joint repair needs to account for that movement rather than unintentionally locking adjacent slabs together. On this project, Durable re-established the original joint through the repaired area so the adjacent slabs could continue moving independently without placing unnecessary stress on the repair.
Can industrial concrete joint repair be completed during a weekend shutdown?
Depending on the scope and site conditions, industrial joint repairs can be planned around short operational shutdowns. Careful scheduling is important, particularly because unexpected conditions may only become apparent after the existing repair is removed. For this project, Durable mobilized Friday for second shift to create additional schedule flexibility and completed the work within the customer’s planned weekend shutdown.
How can dust be controlled during concrete joint repair inside an active facility?
Concrete cutting, grinding and surface preparation require appropriate dust-control measures, particularly in facilities where inventory or operations are located near the repair. On this project, Durable isolated the work area with protective plastic and used HEPA-filtered dust collection and appropriate engineering controls during cutting, grinding and preparation. The work area was also cleaned between repair phases to control concrete debris.
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