difficult to source the cause of that crk but i'd guess its from a cold jnt stemming from when the orig conc was placed - delay in 2nd trk or lack of satisfactory vibration to consolidate both loads - who knows ? whatever the cause, there it is :yes:
decent article @ http://www.delawarequarries.com/cleaners & wikipedia/many others,,, in your case, it may be easier to excavate to approx ext location & waterproof the area,,, typical bldg code only requires 3mil dampproofing coating,,, typically asphalt emulsions get applied w/no or little flexibility/strethability so cannot bridge crks.
bsmt efflorescence is typically lime salts from soil acids in solution w/rainwater,,, wtr runs downhill & winds up against your fnd walls :furious:
decent article @ http://www.delawarequarries.com/cleaners & wikipedia/many others,,, in your case, it may be easier to excavate to approx ext location & waterproof the area,,, typical bldg code only requires 3mil dampproofing coating,,, typically asphalt emulsions get applied w/no or little flexibility/strethability so cannot bridge crks.
bsmt efflorescence is typically lime salts from soil acids in solution w/rainwater,,, wtr runs downhill & winds up against your fnd walls :furious:
