Journal of Transportation Research

Journal of Transportation Research

Feasibility of Using Light Aggregate and Waste Ceramic in Self-Compacting Lightweight Concrete

Document Type : Original Article

Authors
Rezvan Babagoli 1
Danial Nasr 2
1 Assistant Professor, Department of Civil Engineering, University of Science and Technology of Mazandaran, Behshahr, Iran.
2 Assistant Professor, Department of Civil Engineering, Isfahan (Khorasgan) Branch, Islamic Azad University, Isfahan, Iran.
10.22034/tri.2025.482224.3286
Abstract
Given the limited availability of natural aggregate resources, the conservation of these materials for concrete production, including Self-Compacting Concrete (SCC), has gained significant importance in recent years. Additionally, the management and disposal of by-products have become a major global concern. The use of alternative materials, such as Lightweight Aggregates (LWA), in SCC production has increased over the past decades. Utilizing by-products as LWA (both coarse and fine) contributes to the sustainable development of SCC while also benefiting the environment. In this study, physical, mechanical, and durability characteristics of self-compacting concrete were investigated by replacing part of the natural aggregates with lightweight Leca and ceramic waste. The results indicated that the slump flow of all mixes was within the acceptable range (55 to 85 cm). The samples with intermediate grading showed the highest compressive strength (38.1 and 42.1 MPa), tensile strength (5.3 and 6.3 MPa), and flexural strength (6.2 and 7.5 MPa) at 28 and 90 days, respectively. In contrast, the samples made with Fuller grading demonstrated the lowest water absorption (1.7% and 2.1%), highest electrical resistance (16.5 and 51.3 kΩ·cm), and lowest depth of chloride penetration (16.5 and 8.5 mm) at the same ages. Overall, samples produced with intermediate grading performed better in mechanical strength, while those with Fuller grading yielded superior results regarding electrical resistance and water absorption.
Keywords
Leca
Waste Ceramics
Performance Characteristics
Durability
Lightweight Self-Compacting Concrete
Subjects
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