Mehran University Research Journal Of Engineering &
Technology (HEC Recognized In Category "X")
Publishing Since 1982.



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Linear Shrinkage Behaviour of Compacted Loam Masonry Blocks

Keywords: Compaction, Shrinkage, Wall panels, Loam, Clay, Drained State.

Mehran University Research Journal of Engineering & Technology

Volume 36 ,  Issue 2

NAWAB ALI  LAKHO,MUHAMMAD AUCHAR ZARDARI  ,ASHFAQUE AHMED PATHAN  

Abstract

Walls of wet loam, used in earthen houses, generally experience more shrinkage which results in cracks and less compressive strength. This paper presents a technique of producing loam masonry blocks that are compacted in drained state during casting process in order to minimize shrinkage. For this purpose, loam masonry blocks were cast and compacted at a pressure of 6 MPa and then dried in shade by covering them in plastic sheet. The results show that linear shrinkage of 2% occurred which is smaller when compared to un-compacted wet loam walls. This implies that the loam masonry blocks compacted in drained state is expected to perform better than un-compacted wet loam walls.