Structural Performance of Shear Loaded Precast EPS-Foam Concrete Half-Shaped Slabs

Sanusi Saheed, Farah N. A. Abd. Aziz, Mugahed Amran, Nikolai Vatin, Roman Fediuk, Togay Ozbakkaloglu, Gunasekaran Murali and Mohammad Ali Mosaberpanah
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Sanusi Saheed: Department of Civil Engineering, Faculty of Engineering, University Putra Malaysia, Serdang 43400, Selangor, Malaysia
Farah N. A. Abd. Aziz: Department of Civil Engineering, Faculty of Engineering, University Putra Malaysia, Serdang 43400, Selangor, Malaysia
Mugahed Amran: Department of Civil Engineering, College of Engineering, Prince Sattam Bin Abdulaziz University, Alkharj 11942, Saudi Arabia
Nikolai Vatin: Higher School of Industrial, Civil and Road Construction, Peter the Great St. Petersburg Polytechnic University, 195251 St. Petersburg, Russia
Roman Fediuk: School of Engineering, Far Eastern Federal University, 8, Sukhanova Str., 690950 Vladivostok, Russia
Togay Ozbakkaloglu: Ingram School of Engineering, Texas State University, San Marcos, TX 78667, USA
Gunasekaran Murali: School of Civil Engineering, SASTRA Deemed to be University, Thanjavur 613401, India
Mohammad Ali Mosaberpanah: Civil Engineering Department, Cyprus International University, 99258 Nicosia, North Cyprus, Turkey

Sustainability, 2020, vol. 12, issue 22, 1-17

Abstract: Precast concrete elements provide a feasible way to expedite on-site construction; however, typical precast components are massive, making their use particularly undesirable at construction sites that suffer from low load-bearing capacity or have swelling soils. This research aims to develop an optimal lightweight expanded polystyrene foam concrete (EPS-foam concrete) slab through a consideration of various parameters. The precast EPS-foam concrete half-shaped slabs were prepared with a density and compressive strength of 1980 kg/m 3 and 35 MPa, respectively. Quarry dust (QD) and EPS beads were utilized as substitutions for fine and coarse aggregates with replacement-levels that varied from 5% to 22.5% and 15% to 30%, respectively. The use of EPS beads revealed sufficient early age strength; at the same time, the utilization of quarry dust in EPS-foam concrete led to a more than 30% increase in compressive strength compared to the EPS-based mixtures. Two hundred and fifty-six trial mixes were produced to examine the physical and mechanical characteristics of EPS-foam concrete. Three batches of a total of four EPS-foam concrete half-shaped slabs with spans of 3.5 and 4.5 m and thicknesses of 200 and 250 mm were prepared. Findings showed that the ultimate shear forces for the full-scale EPS-foam concrete half-shaped slabs were approximately 6–12% lower than those of the identical concrete samples with a 2410 kg/m 3 average density, and 26–32% higher than the theoretical predictions. Also, it was observed that the self-weight of EPS-foam concrete was reduced by up to 20% compared to the control mixtures. Findings revealed that the prepared precast EPS-foam concrete half-shaped slabs could possibly be applied as flooring elements in today’s modern infrastructure.

Keywords: precast concrete; lightweight concrete; expanded polystyrene beads; full-scale EPS-foam concrete half-shaped slab; shear loads (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2020
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (2)

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