Effect of Steel Fiber Dosage and Water-to-Cementitious Materials Ratio on the Performance and Alkali-Silica Reaction of Concrete Containing 10% Natural Zeolite and 100% Recycled Glass Sand
1
Department of Civil Engineering, Qa. c., Islamic Azad University, Qazvin, Iran
2
Department of Civil Engineering ,, Qa. c., Islamic Azad University, Qazvin, Iran
10.22124/jcr.2026.34155.1750
Abstract
The use of recycled glass sand as a complete replacement for natural sand is an important approach to sustainable construction; however, its potential for alkali–silica reaction (ASR) poses a limitation. This study investigated the effects of 10% natural zeolite and steel fiber dosages ranging from 0.5% to 1.5% on controlling ASR and improving the mechanical properties and durability of concrete containing recycled glass sand at three water-to-cementitious materials ratios of 0.4, 0.5, and 0.6. Twelve concrete mixtures, including three control mixtures and nine modified mixtures, were produced. Compressive and flexural strength, elastic modulus, capillary absorption, porosity, electrical resistivity, and AMBT and CPT tests were conducted. The results showed that the 14-day AMBT expansion decreased from 0.231% in the control mixture to approximately 0.090%, while the 28-day compressive and flexural strengths increased by approximately 9% and 8%, respectively. Reducing the water-to-cementitious materials ratio also improved microstructural densification. The combined use of zeolite and steel fibers can be considered a suitable approach for the safer utilization of recycled glass sand in concrete.
Mirmoezi, S. A. V. , Delnavaz, A. and Hashemi, S. A. H. (2026). Effect of Steel Fiber Dosage and Water-to-Cementitious Materials Ratio on the Performance and Alkali-Silica Reaction of Concrete Containing 10% Natural Zeolite and 100% Recycled Glass Sand. Concrete Research, (), -. doi: 10.22124/jcr.2026.34155.1750
MLA
Mirmoezi, S. A. V. , , Delnavaz, A. , and Hashemi, S. A. H. . "Effect of Steel Fiber Dosage and Water-to-Cementitious Materials Ratio on the Performance and Alkali-Silica Reaction of Concrete Containing 10% Natural Zeolite and 100% Recycled Glass Sand", Concrete Research, , , 2026, -. doi: 10.22124/jcr.2026.34155.1750
HARVARD
Mirmoezi, S. A. V., Delnavaz, A., Hashemi, S. A. H. (2026). 'Effect of Steel Fiber Dosage and Water-to-Cementitious Materials Ratio on the Performance and Alkali-Silica Reaction of Concrete Containing 10% Natural Zeolite and 100% Recycled Glass Sand', Concrete Research, (), pp. -. doi: 10.22124/jcr.2026.34155.1750
CHICAGO
S. A. V. Mirmoezi , A. Delnavaz and S. A. H. Hashemi, "Effect of Steel Fiber Dosage and Water-to-Cementitious Materials Ratio on the Performance and Alkali-Silica Reaction of Concrete Containing 10% Natural Zeolite and 100% Recycled Glass Sand," Concrete Research, (2026): -, doi: 10.22124/jcr.2026.34155.1750
VANCOUVER
Mirmoezi, S. A. V., Delnavaz, A., Hashemi, S. A. H. Effect of Steel Fiber Dosage and Water-to-Cementitious Materials Ratio on the Performance and Alkali-Silica Reaction of Concrete Containing 10% Natural Zeolite and 100% Recycled Glass Sand. Concrete Research, 2026; (): -. doi: 10.22124/jcr.2026.34155.1750
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