welding corroded steel.
welding corroded steel.
(OP)
We have some precast concrete cloumns in which the existing column base plates have experienced various degrees of corrosion/rust. The existing base plate is plate steel anchored and cast into the column base. Would like to weld a new base plate to the existing base plate, core out the existing anchor bolts and install new epoxy adhesive anchor bolts. Any thoughts on surface preparation of existing base plate and welding new base plate to it?






RE: welding corroded steel.
Simply cleaning the area of weld may not be sufficient. Debris, rust or other foreign material at the faying surfaces may creep up on the welder during welding resulting in porosity, incomplete fusion or other weld discontinuities.
Check out AWS D1.1:2002, 5.15.
RE: welding corroded steel.
Rod
RE: welding corroded steel.
After you do all this, don't forget to check the plate for loss of cross-section effect on its capacity.