ABSTRACT
The data in Table 6 showed that in general terms all of the Portland and blastfurnace slag cement concretes had good resistance to seawater attack after 5 years of exposure in tidal and full immersion zones at BRE’s marine exposure site at Shoeburyness[4]. However the SRPC and high C3A OPC concretes in the full immersion zone had somewhat higher strength losses and some of the slag cement concretes had suffered superficial surface frost damage in the form of “pop-outs” and spalling, characteristic of freeze-thaw attack. The use of air entrainment should prevent this happening[5].
