DOAJ Open Access 2025

Effects of Water-to-Binder Ratios on the Workability, Durability and Strength Development of In-Situ Carbonated Concrete

Melaku N. Seifu Jemal Kedir Adem Hammad R. Khalid G. M. Kim Solmoi Park

Abstrak

Abstract Enhancing the performance and sustainability of concrete is critical in modern construction, and in-situ carbonation offers a promising approach by introducing CO2 directly during mixing. This study investigates the influence of CO2 dosage on the workability, durability, and strength of concrete with varying water-to-binder ratios. Gaseous CO2 was injected during mixing, leading to the immediate formation of amorphous calcium carbonate and a noticeable reduction in slump within 10 min. Experimental results showed that CO2 addition improved pore structure and chloride resistance, with reductions of up to 18% in total charge and 13% in migration coefficient. However, a decrease in 28-day compressive strength was observed, varying with mix design. These findings highlight the importance of carefully balancing CO2 dosage and water-to-binder ratio to enhance durability without compromising long-term strength.

Topik & Kata Kunci

Systems of building construction. Including fireproof construction, concrete construction

Penulis (5)

Melaku N. Seifu

Jemal Kedir Adem

Hammad R. Khalid

G. M. Kim

Solmoi Park

Format Sitasi

APA MLA BibTeX

Seifu, M.N., Adem, J.K., Khalid, H.R., Kim, G.M., Park, S. (2025). Effects of Water-to-Binder Ratios on the Workability, Durability and Strength Development of In-Situ Carbonated Concrete. https://doi.org/10.1186/s40069-025-00827-8

Akses Cepat

PDF tidak tersedia langsung

Cek di sumber asli →

Lihat di Sumber doi.org/10.1186/s40069-025-00827-8

Informasi Jurnal

Tahun Terbit: 2025
Sumber Database: DOAJ
DOI: 10.1186/s40069-025-00827-8
Akses: Open Access ✓