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cracks repair @ brick walls

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Hello,

How to repair the diagonal cracks @ 9" thick, color red (no paint),
multiwythe (filled withe solid grout) brick walls?

1. Epoxy injection w/ SIKADUR 35 HI-MOD LV? Can the sealant be removed
after the injection completely (the Arch. want to keep the original
surface color, and do not want to paint the walls over to cover the
stains from sealant) 

2. Remove the cracked portion within the whole wall (leave the
existing rebars in place) and replace with new concrete infills &
veneer at both faces (to match the existing brick)?

3. Remove the brick at both sides and epoxy injection at grout cracks,
then fix both surfaces with new veneer to match?

Thanks in advance!

James Lin, SE
I. D. S. 

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