00453    a2200097   4500082001500000100002400015245019500039260006000234300003400294650002700328  a624.17 ASL  aMuhammad Aslam, Maj  aStudy of in Service Expansion Joints with Special Emphasis on Performance Condition Waterproofing Causes of Failure and Repairing / Retrofitting Techniques [MS Thesis] /cMuhammad Aslam, MAJ  aRisalpur :bNational Institute of Transportation,c2001  av, 194p. :bill. ;c30 cmeCD  aStructural Engineering