Results 51 to 60 of about 8,572 (229)

Drying shrinkage of alkali-activated fly ash/slag blended system

, 2018
The drying shrinkage of alkali-activated fly ash/slag (AAFS) is an important engineering property for the control of cracking when AAFS is utilized as a building material.
Yuwei Ma, Ma, Yuwei, Guisheng Wang, Wang, Guisheng   +3 more
core   +1 more source

Relationship between rheological property and early age-microstructure building up of alkali-activated slag

, 2022
This paper investigated the effects of temperature and activator concentration on the rheological property of slag activated by ternary activator of Na2O·2SiO2–NaOH–Na2CO3.
Lu, Cuifang, Zhang, Zuhua, Yu, Qijun, Hu, Jie, Shi, Caijun   +4 more
core   +1 more source

Mixed‐Impurity Co‐Poisoning of NH3‐SCR Catalysts: Poisoning Mechanisms, Antagonistic Effects, and Anti‐Inactivation Strategies

EcoEnergy, EarlyView.
This review summarizes the synergistic effects of mixed impurities on ammonia‐selective catalytic reduction (NH3‐SCR) catalysts, including the poisoning mechanism of the catalyst caused by mixed impurities, the antagonistic effects between the impurities, and the research on the anti‐poisoning strategies for the catalyst in recent years.
Hongyan Xue, Manas Pal, Zhaoteng Xue, Dongsen Mao   +3 more
wiley   +1 more source

Properties of alkali-activated ground granulated blast furnace slag blended with ferronickel slag

, 2018
This study aims to investigate the feasibility of using ferronickel slag (FNS) blended with ground granulated blast furnace slag (GGBS) to produce alkali-activated cements (AACs). Sodium silicate (Na2SiO3) and sodium hydroxide (NaOH) are used to activate
Li, Baoliang, Zhang, Zuhua, Cao, Ruilin, You, Nanqiao, Zhang, Yamei   +4 more
core   +1 more source

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

How does the pore solution chemistry influence the passivation of reinforced alkali‐ and salt‐activated slag materials?

, 2023
Service life predictions of reinforced concrete structures are underpinned by the passivation film chemistry, structure, and thickness. In this work, we present how the formation of passive films at the steel–concrete interface of reinforced alkali- and ...
Moseler, Michael, Juan Pablo Gevaudan, Timounay, Yousra, Gevaudan, Juan Pablo, Yousra Timounay, Leonhard Mayrhofer, Michael Moseler, Mohammad Zarshenas, Mayrhofer, Leonhard, Zarshenas, Mohammad   +9 more
core   +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

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

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