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Honeycombed foundation repair

Phillip Russell from Crackmaster Concrete in Vancouver, British Columbia is an expert at identifying and repairing these foundation issues. In this case Phill applied the SRS-660 Bidirectional Carbon Fiber along the effected area of this homes foundation to reinstate the lost strength due to the honey combing.


Honeycombing in concrete is caused by the mortar not filling the spaces between the coarse aggregate particles. It’s caused either by the compaction not having been adequate to cause the mortar to fill the voids between the coarse aggregate, or by holes and gaps in the formwork allowing some of the mortar to drain out of the concrete.


The extent of the honeycombing may have extended deep into the structural member. Depending on the depth and extent, this may reduce both the durability, performance and structural strength of the foundation.


The carbon fiber composite strengthening system provides 35,000 pounds per foot of confinement strength over the effected area to meet the structural requirements of the homes foundation.




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