Effects of shell element on shelled compressed earth masonry units

Abstract

Shelled compressed earth block is an earth block of an outer shell of optimum cement content, and an inner core of less or no cement content – compressed into a unit block. The shell element was introduced for durability and weathering resistance with less overall cement. This study is carried out to assess the extent to which, the shell element impacted on the above properties. Thus establishing the specific impacts of the shell element on the overall properties of shelled compressed earth masonry unit. Experimental research plan was designed using relevant material compositions, shelled and unshelled, for basic masonry tests like compressive strength, capillary water absorption, wet and dry abrasion. Results revealed a significant effect of shell element on the overall physical properties with less overall cement content.