SUPERABSORBENT POLYMERS (SAPS) - AN ADMIXTURE TO INCREASE THE DURABILITY OF CONCRETE

摘要

The influence of SAPs on the durability of different concretes was compared to the one of concretes produced with conventional air entraining agents. The results showed a significantimprovement of the freeze-thaw durability. The water absorption tests performed with mortarswith SAP addition showed a likewise improvement. Both effects can be attributed to thedensification of the concrete matrix by the absorption of pore water by the SAPs. Chloridemigration was reduced due to the dense microstructure of the hardened cement paste.