Results 51 to 60 of about 35,822 (226)

Sustainable Revival of Spent Lithium Iron Phosphate Cathodes in Li‐Ion Batteries: Recycling and Surface Engineering Approaches

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
Schematic illustration of the lifecycle of LiFePO4 cathodes. Lithiation and delithiation reactions happen through its discharging and charging processes. Recycling pathways including hydrometallurgy, pyrometallurgy, and direct regeneration enable sustainable reuse of spent LFP materials. Surface modification approaches (carbon, polymer, and metal/metal
Yan He, Ruigang Wang
wiley   +1 more source

Cold‐curing effects on the strength development and sulfuric acid resistance of basalt fiber‐reinforced hybrid alkali‐activated slag mortars

Structural Concrete, EarlyView.
Abstract Cold weather conditions impose substantial constraints upon the performance and long‐term resilience of concrete materials. Alkali‐activated slag (AAS) presents itself as a promising substitute, exhibiting sustained hydraulic activity even when exposed to ambient conditions characterized by low temperatures.
Zeynep Bahçeci, Murat Dener, Ahmet Benli, Bilal Balun   +3 more
wiley   +1 more source

Alternative alkali-activator from steel-making waste for one-part alkali-activated slag

, 2020
In this study, the use of desulphurization dust (DeS-dust) generated as a waste material during steel-making process, as an alternative activator to commercial sodium hydroxide in ground granulated blast furnace slag (GGBFS) alkali activation is proposed.
E. Adesanya, K. Ohenoja, Andrea Di Maria, P. Kinnunen, M. Illikainen   +4 more
semanticscholar   +1 more source

Bacterial healing of cracks in metakaolin‐based geopolymer concrete exposed to high temperatures

Structural Concrete, EarlyView.
Abstract This study examined the bacterial healing of metakaolin‐based geopolymer concrete modified with colemanite (K) and red mud (RM) exposed to high temperatures. The metakaolin‐based geopolymer concrete samples modified with 4% K and 6% RM were prepared.
Harun Tanyildizi, Mahmoud Ziada, Mucteba Uysal, Savaş Erdem   +3 more
wiley   +1 more source

Effects of Aging on the Tensile Properties of Polyethylene Fiber-Reinforced Alkali-Activated Slag-Based Composite

Advances in Materials Science and Engineering, 2019
Information on the effect of age on the tensile behavior of fiber-reinforced alkali-activated slag-based composite is fairly limited. Therefore, the purpose of this study is to experimentally investigate the effect of age on the compressive strength and ...
Jeong-Il Choi, Se-Eon Park, Su-Tae Kang, Bang Yeon Lee   +3 more
doaj   +1 more source

Effect of Stress–Strength Ratio and Fiber Length on Creep Property of Polypropylene Fiber-Reinforced Alkali-Activated Slag Concrete

Buildings, 2022
Alkali-activated slag (AAS) is an environmentally friendly green cementitious material that can replace ordinary Portland cement (OPC) and has attracted extensive research by scholars all over the world.
Xianyu Zhou, Wenzhong Zheng, Yu Yan
doaj   +1 more source

Geopolymers as a Sustainable Chemical Platform: From Building Materials to Advanced Functional Applications

The Chemical Record, EarlyView.
Geopolymers are presented as a chemically programmable platform whose properties emerge from activation chemistry, nanoscale disorder, and interfacial design. The review highlights sustainability challenges, the shift toward nanoengineered and hybrid systems, and the rise of halloysite‐based architectures enabling tunable structures across scales for ...
Martina Maria Calvino, Lorenzo Lisuzzo, Giuseppe Cavallaro, Stefana Milioto, Giuseppe Lazzara   +4 more
wiley   +1 more source

The Role of Al in Cross‐Linking of Alkali‐Activated Slag Cements [PDF]

Journal of the American Ceramic Society, 2014
The structural development of a calcium (sodium) aluminosilicate hydrate (C–(N‐)A–S–H) gel system, obtained through the reaction of sodium metasilicate and ground granulated blast furnace slag, is assessed by high‐resolution 29 Si and 27 Al MAS NMR ...
Rupert J. Myers, Susan A. Bernal, John D. Gehman, Jannie S.J. van Deventer, John L. Provis   +4 more
openaire   +2 more sources

Impact of metakaolin to partially replace granulated blast furnace slag on the performance of alkali-activated slag grouting materials and evaluation of grouting effectiveness

Materials Research Express
In recent years, alkali-activated slag materials have garnered widespread attention in the construction field due to their environmental friendliness and excellent mechanical strength.
Bo Han, Lingjian Cai, Fengxia Chi, Wei Zhan   +3 more
doaj   +1 more source

Compressive Strength and Resistance to Sulphate Attack of Ground Granulated Blast Furnace Slag, Lithium Slag, and Steel Slag Alkali-Activated Materials

Buildings
Alkali-activated materials (AAMs) are favoured for their low carbon emissions, excellent mechanical properties, and excellent chemical resistance. In this paper, ternary alkali-activated cementitious materials were prepared from slag, steel slag, and ...
Shunshan Zhang, Yannian Zhang, Jisong Zhang, Yunkai Li   +3 more
doaj   +1 more source