Evaluation of Mechanical Properties and Durability of Self-Compacting Lightweight Concrete Containing Perlite and Waste Ceramic as Aggregate

Document Type : Research Paper

Authors

1 Assistant Professor, Department of Civil Engineering, Isf.C., Islamic Azad University, Isfahan, Iran.

2 Assistant Professor, Department of Civil Engineering, University of Science and Technology of Mazandaran, Behshahr, Mazandaran, Iran.

3 Master Graduate, Department of Civil Engineering, Isf.C., Islamic Azad University, Isfahan, Iran.

Abstract

Designing self-compacting lightweight concrete allows for simultaneous utilization of the benefits of lightweight aggregates and the properties of self-compacting concrete. Rapid growth of construction industry has led to an increased demand for building materials such as cement and natural aggregates, highlighting the necessity of utilizing industrial waste materials, such as ceramic and tile waste, as sustainable alternatives. Therefore, in this research, by altering the aggregates and incorporating lightweight perlite and waste ceramics, an effort was made to evaluate the physical, mechanical, and durability properties of lightweight self-compacting concrete. The mix design for these tests was based on both Fuller and gap grading. Results showed that all mix designs fell within the acceptable range of slump flow (55 to 85 cm). In terms of mechanical properties, the NNM mix, containing both coarse and fine natural aggregates based on gap grading, exhibited the highest compressive (34.6 and 37.2 MPa), tensile (4.8 and 5.5 MPa), and flexural (5.6 and 6.6 MPa) strengths at 28 and 90 days, respectively. Regarding durability, the NNF mix, based on the Fuller grading, displayed the lowest water absorption at 1.9% and 1.1%, the highest electrical resistivity at 30.1 and 57.9 kiloohm-centimeter, and the lowest penetration depth at 11 and 10 millimeters at 28 and 90 days, respectively. In conclusion, when comparing mix designs based on Fuller and gap grading at 28 and 90 days, it was evident that, in terms of mechanical properties, the coarser gap grading performed better. However, in terms of durability, the finer Fuller grading exhibited better performance compared to the gap grading.

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References

 
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History

  • Receive Date: 12 November 2024
  • Revise Date: 07 April 2025
  • Accept Date: 08 April 2025

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