FIELD PERFORMANCE OF PORTLAND CEMENT AND FLY ASH CONCRETE SUBJECTED TO FLOWING SEAWATER

The concrete lining the outfall canal of Munmorah Power Station, built by the Electricity Commission of New South Wales (now operating as Pacific power) in he mid-1960s, has been subjected to flowing sea water for 30 years. Two types of concretes, a portland-cement concrete and a fly-ash concrete, were used for the construction of the canal. This presented an ideal opportunity for a comparison to be made of the performance of the two binders in concretes which were subjected to the same aggressive environment. In the dry area above the high tide mark, the carbonation depth of the fly-ash concrete was greater than the portland-cement concrete. No corrosion was found in any reinforcing steel as there were sufficient cover in both concretes to prevent the chloride ions or carbonation front reaching the steel.

Language

  • English

Media Info

  • Pagination: p. 463-479

Subject/Index Terms

Filing Info

  • Accession Number: 00728890
  • Record Type: Publication
  • Report/Paper Numbers: SP-163
  • Files: TRIS
  • Created Date: Nov 6 1996 12:00AM