Modeling the Behavior of Prestressed Concrete System Using Hybrid Epoxy–Cement, Hybrid Cement–Polyester Binder, and CQD Reinforcement
Properties of Pre- and Post-Tensioned Hybrid Epoxy–Cement Concrete Members for Construction Applications, wiley, ss.183-200, 2026
- Yayın Türü: Kitapta Bölüm / Araştırma Kitabı
- Basım Tarihi: 2026
- Doi Numarası: 10.1002/9781394219384.ch12
- Yayınevi: wiley
- Sayfa Sayıları: ss.183-200
- Anahtar Kelimeler: carbon quantum dots reinforcement, chloride ion diffusion, corrosion, durability, FTIR analysis, hybrid epoxy–cement beams, mechanical analysis, physical analysis, SEM analysis
- İstanbul Üniversitesi-Cerrahpaşa Adresli: Evet
Özet
The chapter focuses on hybrid epoxy–cement beams that incorporate carbon quantum dots (CQD), which are crucial for understanding the properties of the composite and its suitable applications. This integrated model has been successfully developed for polymer–cement composites containing CQD. However, the methodology remains insufficiently detailed for epoxy–cement composites. This paper examines the pertinent mechanisms and elucidates the observed phenomena. The proposed mechanisms concerning the physical, mechanical, and durability performance of the hybrid epoxy–cement beam with CQD are grounded in experimental results, along with SEM and FTIR analyses. The conclusions reached are as follows: the SEM analysis revealed that the incorporation of CQD markedly increased the density of the hybrid epoxy–cement beam in comparison to the conventional beam; the integration of CQD in varying proportions within the hybrid epoxy–cement binder markedly improved its physical characteristics; the enhancement of the CQD content significantly increased the strength performance of the epoxy–CQD-modified beams during mechanical testing, with an optimal CQD concentration identified at 1%; the analysis conducted using Fourier transform infrared spectroscopy demonstrated that the hybrid epoxy–cement binder infused with CQD exhibits a capacity to engage with hydroxyl ions, thereby markedly improving the characteristics of the beam in comparison to a conventional beam; and the CQD possesses the capability to impede the diffusion of chloride ions, restrict the movement of moisture, and protect the interior of the beam from corrosion.