NEWS

2025.11.30

Four papers have been accepted since July

The following three papers have been published:

Sothyrak Rath, Yuya Sakai: Impact of wet–dry cycles on concrete: chemical-phase and pore-structure changes and moisture distribution mechanisms observed via hyperspectral imaging, Construction and Building Materials, Vol. 496, 143864, 2025

This study visualized moisture and microstructural changes in concrete under wet–dry cycles using hyperspectral imaging, revealing moisture gradients, depth-dependent hydration and leaching, and their effects on pore structure.

 

Ren Wei, Tsukamoto Atsuki, Guomin Ji, and Yuya Sakai: Botanical Sandcrete: An environment-friendly alternative way to the mass utilization of fine (desert) sand, Journal of Building Engineering, Vol. 113, 114078, 2025

This study developed cement-free Botanical SandCrete by hot-pressing fine sand powder with wood. It evaluated forming conditions and sand types, showing that desert sand’s fineness and alkalinity enhance bonding and strength. The results demonstrate its potential as a sustainable construction material.

 

Zongxuan Shao, Zheng Fang, and Yuya Sakai: Enhancement of compacted hardened cement paste powder through carbonation: evolution of CO2 diffusion, phase assemblage and pore structure, Case Studies in Construction Materials, Vol. 23, e05293, 2025

This study investigates the carbonation of compacts made from fine recycled-concrete powder. It shows that density varies with molding pressure and depth, leading to uneven CO₂ diffusion, and that carbonation enhances strength and densification while enabling CO₂ uptake.

 

The following paper has been accepted and is waiting for publication.

Sothyrak Rath, Shunsei Tanaka, and Yuya Sakai: Estimation of Concrete Compressive Strength Using the Drilling Powder Method, ASCE’s Journal of Materials in Civil Engineering, 2025 (Accepted)

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