00527    a2200109   4500082001500000100002400015245018100039260006000220300004700280650005200327650003800379  a624.15 SHA  aShafqat Mahmud, Maj  aStudy Use of Recycled / Waste Polythene Chips, Cement and Sand to Reduce the Shrinkage Potential of Clay Liner in Arid / Semi Arid Regions [MS Thesis] /c Shafqat Mahmud, Major  aRisalpur :bNational Institute of Transportation,c2000  axii, 147p. :bill, col pics . ;c30 cmeCD  aUse Cement, Sand and Waste / Recycled Polythene  aCompacted High Plastic Clay Liner