Evaluation the performance of Rigid Pavement Modified with admixture of Nano Silica and Glass Fiber: A review

Swilam, Esraa; Saad, Mostafa Abdelsalam; M. Morsi, Ahmed; Eisa, Mohamed Samir

doi:10.21608/bjas.2024.280651.1403

Evaluation the performance of Rigid Pavement Modified with admixture of Nano Silica and Glass Fiber: A review

Document Type : Review Articles

Authors

civil department, benha faculty of engineering, benha university, benha, egypt

10.21608/bjas.2024.280651.1403

Abstract

Durability is an essential component that plays a crucial role in the rigid pavement performance and service life. However, with the rapid growth of traffic loads and climate change, rigid pavement suffers from various distresses, including thermal cracks, freeze-thaw cycles that lead to moisture damage, and chemical attacks. Thus, the researchers applied a novel technique to improve the overall performance of rigid pavement by using different types of additives. Among many kinds of additives, the current study seeks to review the use of Nanosilica and glass fiber in concrete admixtures. Nanosilica is a nanoparticle that acts as a pozzolanic fabric that improves the bonding between debris, while glass fibers are synthetic fibers that offer additional tensile strength and reduce cracking. Flexural strength, compressive strength, and skid resistance tests were conducted in the previous studies to evaluate the performance of modified rigid pavement. Results demonstrated that the rigid pavement modified with Nanosilica improved the compressive strength and moisture resistance compared with the control rigid pavement. Nonetheless, the Nanosilica had a slight improvement in tensile strength. Moreover, the best dosage of Nanosilica in the concrete mixture was from 1% to 3% by weight of cement. Glass fiber has a significant influence on the tensile strength of rigid pavement. The recommended percentage for adding glass fiber is 0.4–1% by weight of aggregate. Finally, adding single additives to rigid pavement is not enough to improve the overall performance. Therefore, it is recommended to use the admixture of Nanosilica and glass fiber in rigid pavement.

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