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Reinforce Walls With Shotcrete

Unreinforced masonry walls can be strengthened in-place using shotcrete, also known as gunite, which is concrete sprayed in place. Shotcrete is applied directly to the existing walls and secured using epoxy anchors. Shotcrete is reinforced with steel and supported by either a new foundation or by underpinning and enlarging the wall foundation.

Effectiveness:

  • Very effective. Strength of shotcrete varies with thickness.

Limitations:

  • Unreinforced materials covered by shotcrete are still subject to future cracking or spalling. 

 

 

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Randolph Langenbach

M-Arch (Harvard), Dipl.Conservation (York, England)


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