Aceralia blast furnace A suffered a 28-days emergency repair in
September 2004, due to accelerated wear of the hearth walls and
severe damage of the cast iron staves at the bosh area. Considering
the shortage of supplies, Aceralia resorted to non conventional
repair methods in order to prolong the campaign by one year, until
full relining: small format carbon bricks and carbon ramming mass
for the hearth and tapholes and steel staves at the bosh.