Title:
Sixty-Year Service Life of Port Kembla Saltwater Concrete Swimming Pool
Author(s):
Vute Sirivivatnanon
Publication:
Materials Journal
Volume:
116
Issue:
5
Appears on pages(s):
31-36
Keywords:
carbonation; chloride penetration; compressive strength; concrete cover; corrosion
DOI:
10.14359/51716824
Date:
9/1/2019
Abstract:
The durability performance of Port Kembla Olympic Pool, built in 1937, has been investigated. Nearly all structural components were reinforced concrete and were exposed to marine environments with some components ‘permanently submerged’ while others were in an ‘atmospheric zone’ and ‘tidal or splash zone.’ After more than 60 years in service, most structural components were found to be in excellent condition. This paper discusses the site investigation that examined strength, carbonation, chloride penetration, and cover depths. The results revealed the quality of the concrete to be uniform in the pool but variable in other structural members. There was little carbonation but extensive chloride penetration, depending on the exposure condition. The average compressive strength of the 60-year-old concrete in the pool and its surrounding structures was 5700 and 4280 psi (40 and 30 MPa), respectively. The covers were between 2.0 and 2.5 in. (50 and 65 mm). Despite the extent of chloride penetration into the cover concrete, limited corrosion was observed. The concrete has proven to give a service life of over 60 years, which confirms the importance of achieving adequate strength and, perhaps more importantly, cover.
Related References:
1. Standards Association of Australia, “Australian Standard Specification for Portland Cement,” A.2-1937, 1937.
2. Standards Association of Australia, “Australian Standard for Portland and Blended Cements,” AS 3972-2010, 2010.
3. Standards Association of Australia, “SAA Code for Concrete in Buildings,” 1937.
4. British Standards Institution, “British Standard Code of Practice CP 114,” BSI Group, 1948.
5. Standards Association of Australia, “Method for Securing and Testing Cores from Hardened Concrete for Compressive Strength,” AS 1012 Part 14, 1991.
6. Nanukuttan, S. V.; “Basheer, L.; McCarter, W. J.; Robinson, D. J.; and Muhammed Basheer, P. A., “Full-Scale Marine Exposure Tests on Treated and Untreated Concretes—Initial 7-Year Results,” ACI Materials Journal, V. 105, No. 1, Jan.-Feb. 2008, pp. 81-87.
7. Everett, L. M., and Treadaway, K. W. J., “Deterioration Due to Corrosion in Reinforced Concrete,” Building Research Establishment Information Paper IP 12/80, Transport Research Laboratory, Wokingham, UK, 1980, 4 pp.
8. Comité Européen du Béton, “Durability of Concrete Structures—State of the Art Report,” Bulletin D’Information No. 148, CEB, Paris, France, 1982.
9. Locke, C. E., “Corrosion of Steel in Portland Cement Concrete: Fundamental Studies. Corrosion Effects Of Stray Currents and Techniques for Evaluating Corrosion of Rebars in Concrete,” ASTM STP 906, ASTM International, West Conshohocken, PA, 1985, pp. 7-8.
10. Driscoll, S.; Sirivivatnanon, V.; and Khatri, R. P., “Performance of a 25-Year-Old Coastal Concrete Wharf Structure,” Proceedings of the AUSTROADS 1997 Bridge Conference, Sydney, Australia, Dec. 1997.