Multiscale microstructure and micromechanical properties of alkali-activated concrete: A critical review

W Tu, M Zhang - Cement and Concrete Composites, 2024 - Elsevier
With the rapid development of alkali-activated concrete (AAC) as a promising sustainable
concrete, it is vital to thoroughly understand the microstructural characteristics and …

A review on high-temperature resistance of geopolymer concrete

Y Liu, X Hu, Y Du, B Nematollahi, C Shi - Journal of Building Engineering, 2024 - Elsevier
Geopolymer is a promising alternative to ordinary Portland cement (OPC) due to its low
carbon emission during production process, high strength, and good durability. Its inorganic …

Corrosion mechanism of alkali-activated slag/metakaolin materials under carbonic acid solution

F Yang, J Liu, H Jia, Z Chen, L Liu, J Zhu, S Li… - Cement and Concrete …, 2024 - Elsevier
For promoting the application of alkali-activated slag/metakaolin (AASM) materials in karst
areas, it is crucial to understand the corrosion properties of AASM materials in carbonic acid …

Behaviour of alkali-activated fly ash-slag paste at elevated temperatures: An experimental study

W Tu, G Fang, B Dong, Y Hu, M Zhang - Cement and Concrete Composites, 2024 - Elsevier
As an environmentally friendly material, alkali-activated fly ash-slag (AAFS) is considered as
a promising alternative cement because of its excellent mechanical properties and thermal …

The research on the mechanical properties, microstructure, environmental impacts of environmentally friendly Alkali-activated ultra high performance concrete …

J Shen, Y Li, H Lin, Y Li - Journal of Building Engineering, 2024 - Elsevier
Alkali-activated material prepared by the silicon aluminum solid wastes are commonly
considered as the low-carbon cementitious material, which has important significance for …

Effect of chloride and sulphate on ionic concentration of aqueous pore solution and microstructural properties of fly ash-GBFS geopolymer concrete

LSR Maradani, B Pradhan - Construction and Building Materials, 2024 - Elsevier
In present work, effect of admixed NaCl (NC), NaCl+ Na 2 SO 4 (NS), and NaCl+ MgSO 4
(MS) on ionic concentration (Na+, Ca 2+, K+, sulphate, and chloride) of aqueous pore …

Micromechanical analysis of alkali-activated fly ash-slag paste subjected to elevated temperatures

W Tu, G Fang, B Dong, M Zhang - Cement and Concrete Composites, 2024 - Elsevier
To advance the development of high-temperature/fire-resistant alkali-activated materials, it is
vital to understand their behaviour subjected to elevated temperatures. This paper presents …

Utilization of photocatalytic degradation and efficiency of engineered geopolymer composite tile doped with nano-particles under ultraviolet light

ED Shumuye, C Liu, G Fang, S Mehrpay - Cement and Concrete …, 2024 - Elsevier
This study investigates the impact of nano-zinc oxide (ZnO) on the self-cleaning and
microstructural performance of engineered geopolymer composites (EGC) for urban …

Thermal behavior and mechanism study of geopolymers prepared from ferronickel slag with high fire resistance

X Zhang, ZY Zhang, J Zhou, R Du, X Yin, S Kang… - … and Building Materials, 2024 - Elsevier
Previous studies have confirmed the feasibility of using FNS as a refractory material.
However, there is currently no research on the preparation and fire resistance of FNS …

Sustainable alkali-activated materials: Leveraging spontaneous combustion coal gangue for enhanced cementitious performance

L Zhang, Y Zhang, Q Wang, W Zhang, Z Li - Materials Today …, 2024 - Elsevier
The limitations of metakaolin (MK) in the production of alkali-activated materials (AAMs),
such as high cost, energy-intensive preparation, and dependency on high concentrations of …