Beam Flexure
Strength Test
A previously broken concrete beam was successfully reinforced with carbon fiber, demonstrating significant restored strength and load capacity under flexure testing.
View PDFThe Problem
In bridge construction, tight schedules often require beam flexure tests to confirm that newly poured concrete has reached sufficient strength before full curing. In one case, a concrete beam that had already failed twice during flexure testing was no longer usable for standard evaluation.
This created an opportunity to assess whether a repair method could restore or even enhance its load carrying capacity despite prior structural failure.
⚠ A previously failed concrete beam needed to be evaluated to determine if structural strength could be restored using reinforcement.
The Solution
The beam was reassembled and reinforced using 400 GSM, 6 inch wide unidirectional Rhino Carbon Fiber CFRP applied with epoxy. After curing, flexure testing was repeated at the original failure points.
The reinforced beam exceeded required strength levels, reaching 650 psi and continuing up to 935 psi without CFRP failure. This demonstrated the significant strengthening capability of CFRP when bonded to concrete.
Products Used
Project Images
Beam Flexure
Strength Test
A previously broken concrete beam was successfully reinforced with carbon fiber, demonstrating significant restored strength and load capacity under flexure testing.
View PDFThe Problem
In bridge construction, tight schedules often require beam flexure tests to confirm that newly poured concrete has reached sufficient strength before full curing. In one case, a concrete beam that had already failed twice during flexure testing was no longer usable for standard evaluation.
This created an opportunity to assess whether a repair method could restore or even enhance its load carrying capacity despite prior structural failure.
⚠ A previously failed concrete beam needed to be evaluated to determine if structural strength could be restored using reinforcement.
The Solution
The beam was reassembled and reinforced using 400 GSM, 6 inch wide unidirectional Rhino Carbon Fiber CFRP applied with epoxy. After curing, flexure testing was repeated at the original failure points.
The reinforced beam exceeded required strength levels, reaching 650 psi and continuing up to 935 psi without CFRP failure. This demonstrated the significant strengthening capability of CFRP when bonded to concrete.
Products Used
Project Images