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Submitted on: 20 May 1999.
Revised on: 25 June 1999.
Accepted on: 07 August 1999.
___________________Case Studies in Construction Materials
Submitted on: 28 May 2002.
Revised on: 13 August 2002.
Accepted on: 18 September 2002.
___________________Case Studies in Construction Materials
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Submitted on: 26 May 2001.
Revised on: 19 July 2001.
Accepted on: 08 September 2001.
___________________Case Studies in Construction Materials
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Submitted on: 27 November 2001.
Revised on: 17 February 2002.
Accepted on: 28 February 2002.
___________________Case Studies in Construction Materials
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Submitted on: 17 November 2003.
Revised on: 18 December 2003.
Accepted on: 11 January 2004.
___________________Case Studies in Construction Materials