As it is widely known, corrosion of steel reinforcement is one of the main causes of
deterioration of the reinforced concrete structures. Corrosion phenomena combined with
seismic loads aggravate the situation. For this reason, in the present paper, an effort is made to
upgrade the performance of steel reinforcement against corrosion, using the shot blasting
method. Precisely, two groups of specimens were prepared, one of which had previously been
shot blasted. Afterwards, the specimens were undergone artificial corrosion, in order to
compare the results of the developed corrosion damage. Some of them were inserted in a salt
spray chamber and the rest of them were corroded via "impressed current density corrosion"
technique. Finally, mechanical tests were executed, in order to make an assessment
concerning the performance of the reference and the shot blasted material, before and after
corrosion effect. Both selection of the double shot blasting process and experimental results
that came out, were really encouraging.
Keywords: corrosion resistance, shot blasting, mechanical performance
full paper (pdf, 832 Kb)