http://reply.papertrans.cn/1/63/6296/6296-31.png
Submitted on: 17 April 2000.
Revised on: 13 July 2000.
Accepted on: 15 August 2000.
___________________Computers and Concrete---TECHNO-PRESS
Submitted on: 11 April 2004.
Revised on: 19 May 2004.
Accepted on: 30 May 2004.
___________________Computers and Concrete---TECHNO-PRESS
http://reply.papertrans.cn/1/63/6296/6296-34.png
http://reply.papertrans.cn/1/63/6296/6296-35.png
Submitted on: 04 July 1998.
Revised on: 24 October 1998.
Accepted on: 12 November 1998.
___________________Computers and Concrete---TECHNO-PRESS