Atomic-level and surface structure of calcium silicate hydrate nanofoils

Z Casar, AK Mohamed, P Bowen… - The Journal of Physical …, 2023 - ACS Publications
Deciphering the calcium silicate hydrate (CSH) surface is crucial for unraveling the
mechanisms of cement hydration and property development. Experimental observations of …

Enhancing the interfacial compatibility and self-healing performance of microbial mortars by nano-SiO2-modified basalt fibers

GZ Zhang, C Liu, PF Cheng, Z Li, Y Han… - Cement and Concrete …, 2024 - Elsevier
Fibers that enhance the self-healing ability of microbial mortar cracks have been widely
studied. This study explored the impact of modified fibers on the self-healing performance …

Immobilization capacity of element arsenic in alkali-activated slag-arsenic tailing system during self-healing process

J Xiang, J Qiu, L Zou, Y Zhao, X Fei - Cement and Concrete Composites, 2024 - Elsevier
The utilization of alkali-activated slag systems for encapsulating hazardous tailings to
produce polymers can effectively reduce the leaching of hazardous elements. Nevertheless …

Multi-step nucleation of CSH: DFT simulation on silicate oligomerization and Si (Qn) evolution dynamics

X Shen, P Feng, Y Zhang, FB de Souza… - Construction and Building …, 2024 - Elsevier
Understanding the nucleation processes of calcium-silicate-hydrate (CSH) is fundamental to
advancing the performance of cement. This study employs Density Functional Theory (DFT) …

[HTML][HTML] Charge reversal at CSH surface/electrolyte interfaces: A mean-field molecular theory approach

IK Koo, CS Yaw, Q Liu, MN Chong, KB Goh - Cement and Concrete …, 2024 - Elsevier
Understanding the sorption of corrosive ions in cement requires a complete comprehension
of charge reversal at the CSH/electrolyte interfaces. However, this charge phenomenon …

[HTML][HTML] The Key Role of Water on the Transformation of the Precursors to nano-crystalline CSH

X Shen, P Feng, Q Zhang, Y Cai, C Chen, X Han… - Composites Part B …, 2024 - Elsevier
The mechanism of multi-step nucleation, which means that a precursor phase exists before
the formation of the final crystal, has undergone significant development as an advanced …

High ferrite cement clinker doped with PbO: Solidification and hydration behaviors

Z Zhang, Y Zhang, C Liu, Z Liu, B Li, W Chen… - Cement and Concrete …, 2024 - Elsevier
Solid wastes have become used to manufacture high ferrite cement clinker (HFCC).
However, the behavior and effect of common heavy metal in solid wastes, ie, lead during …

Carbonation of waste concrete: An effective and green strategy for enhancing its heavy metals removal from wastewater

X Ouyang, W Li, X Li, Y Ma, G Zhang, J Fu - Journal of Water Process …, 2024 - Elsevier
Abstract Water pollution, especially Pb 2+, Cd 2+, Co 2+, and Ni 2+ released from industrial
and mine wastewater, harms human health and is a global environmental concern. At the …

Improved macro-microscopic characteristic of gypsum-slag based cementitious materials by incorporating red mud/carbide slag binary alkaline waste-derived …

N Chang, H Li, W Liu, W Zheng, H Zhu, Z Wan… - … and Building Materials, 2024 - Elsevier
The expensive cost and high carbon footprint of commercial alkaline activators hindered the
promotion and industrialization of geopolymers. The rising demand for geopolymer as low …

[HTML][HTML] Mechanism of recalcification and its effects on the microstructure and transport properties of cement paste

T Nguyen, QT Phung, N Maes, L Frederickx… - Materials & Design, 2024 - Elsevier
Calcium leaching involves the removal of calcium ions from the pore solution and hydration
products, leading to a decrease in pH, coarsening of pore structure, and, in severe cases …