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Inicio  /  Buildings  /  Vol: 14 Par: 4 (2024)  /  Artículo
ARTÍCULO
TITULO

Analysis of the Influence of Shell Sand Content on the Performance of Ceramisite Lightweight Aggregate Concrete

Di Liu    
Songhui Li    
Hengxuan Lun and Quanlei Wang    

Resumen

This study investigates the impact of varying shell sand replacement rates (0%, 5%, 10%, 15%, 20%, 25%) on the properties of clay ceramsite lightweight aggregate concrete (CLC) through six experimental groups. Results indicate that a 5% replacement rate of shell sand yields optimal mechanical properties and working performance in CLC. Examination of specimen failure diagrams, electron microscopy and theoretical analysis reveals that shell sand predominantly influences CLC?s overall performance by influencing internal pore development and the formation of a ?bonding defect zone? between shell sand and cementitious material. This also elucidates why specimen failure predominantly arises from internal ceramic particle fracture.

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