Authors: Baban Jamal Hamasalh1 & Bahman Omar Taha2 & Ganjeena Jalal Madhat3
1Civil Engineering Department, Tishk International University, Erbil, Iraq
2Civil Engineering Department, Erbil Technical Engineering College, Erbil Polytechnic University, Erbil, Iraq
3Building Construction Department, Erbil technical Institute, Erbil Polytechnic University, Erbil, Iraq
3Civil Engineering Department, Tishk International University, Erbil, Iraq
Abstract: Lightweight aggregates have long been used widely in construction worldwide. One of the most widely used lightweight aggregate in concrete construction is Pumice. This paper investigates the lightweight concrete (LWC) and lightweight self-compacting concrete’s (LWSCC) fresh properties produced by using pumice aggregates. Two groups of concrete were made, first lightweight concrete, and the second group was lightweight self-compacting concrete by using lightweight coarse and fine aggregate (Pumice) (50% – 60% by volume) with fine natural aggregates (50% – 40% by volume). 10% of silica fume was used as cement replacement with a constant (0.40) water-to-binder ratio by mass. Both groups of concrete’s rheological properties were studied by conducting a comprehensive series test (slump, slump flow, J–Ring, L-Box, and V-Funnel). The fresh densities and workability tests showed that this lightweight concrete meets the lightweight structural concrete requirements. Developing LWC and LWSCC with acceptable rheological characteristics and density, which are more environmentally friendly, and low-cost, will support the sustainable construction and reconstruction of volcanic disaster regions worldwide.
Keywords: Lightweight Concrete (LWC), Lightweight Self-Compacting Concrete (LWSCC), Aggregate, Pumice, Fresh Property
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