Abstract
PurposeThis paper aims to investigate the extrudability (flow-ability and shape-stability) of concrete mixtures by using contour crafting (CC) as an automated construction process.Design/methodology/approachSeveral experiments have been performed for flow-ability and shape-stability of concrete mixtures. Experimental results were compared to understand significant factors and their interactions. After developing the empirical model for flow-ability, the model was validated.FindingsThe experimental investigation of varied combination of concrete components developed a mixture within constrains of the CC nozzle and improved the quality of the extruded part.Originality/valueSeveral experimental samples were fabricated using CC, and the derived empirical model was validated after more than 700 h of work.
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