Local Ca-structure variation and microstructural characteristics on one-part activated slag system with various activators

2019 ◽  
Vol 102 ◽  
pp. 1-13 ◽  
Author(s):  
Yeonung Jeong ◽  
Sung-Hoon Kang ◽  
Yonghua Du ◽  
Juhyuk Moon
Keyword(s):  
Slag System ◽  
Microstructural Characteristics ◽  
Structure Variation ◽  
Activated Slag

Influence of aluminum sulfate on strength of CaO-activated slag system

2021 ◽  
Vol 306 ◽  
pp. 124895
Author(s):  
Yansheng Tian ◽  
Jun Xing ◽  
Yingliang Zhao ◽  
Xiaogang Sun ◽  
Pinqi Wu ◽  
...  
Keyword(s):  
Aluminum Sulfate ◽  
Slag System ◽  
Activated Slag

Alkali-activated slag (AAS) paste: Correlation between durability and microstructural characteristics

2021 ◽  
Vol 267 ◽  
pp. 120886 ◽  
Author(s):  
Mahdi Shariati ◽  
Ali Shariati ◽  
Nguyen Thoi Trung ◽  
Parham Shoaei ◽  
Farshad Ameri ◽  
...  
Keyword(s):  
Microstructural Characteristics ◽  
Alkali Activated Slag ◽  
Activated Slag ◽  
Alkali Activated

scholarly journals Influence of B2O3and Basicity on Viscosity and Structure of Medium Titanium Bearing Blast Furnace Slag

2016 ◽  
Vol 2016 ◽  
pp. 1-8 ◽  
Author(s):  
Lingtao Bian ◽  
Yanhong Gao
Keyword(s):  
Blast Furnace ◽  
Network Structure ◽  
Blast Furnace Slag ◽  
Slag System ◽  
Break Point ◽  
Slag Viscosity ◽  
X Ray Diffraction ◽  
Structure Variation ◽  
Point Temperature ◽  
Furnace Slag

The effects of B2O3and basicity (CaO/SiO2) on the viscous behavior and structure of medium titanium bearing blast furnace slag (MTBBFS) were investigated. High temperature viscosimeter was applied to measure the viscosities of CaO-SiO2-MgO-TiO2-Al2O3-B2O3slag system and X-ray diffraction (XRD), NBO/T ratio, and structure parameterQwere employed to analyze its network structure. The results showed that the viscosity decreased and break point temperature increased with increasing basicity to 1.20. However B2O3addition gave rise to a decrease in slag viscosity and break point temperature inspite of basicity. The more B2O3content leads to the more pronounced variation, especially for the slag with larger basicity. The conventional NBO/T formula was revised to predict the structure variation of relatively complicated medium Ti bearing slag based on the work of Yanhong Gao and other researchers. The increase of B2O3content in slag made parameterQturn fromQ2toQ1, suggesting that network structure became simpler. It was also noticed that the addition of B2O3could suppress the formation of perovskite.

Influence of slag characteristics on strength development and reaction products in a CaO-activated slag system

2016 ◽  
Vol 72 ◽  
pp. 155-167 ◽  
Author(s):  
Yeonung Jeong ◽  
Hyeoneun Park ◽  
Yubin Jun ◽  
Jae Hong Jeong ◽  
Jae Eun Oh
Keyword(s):  
Slag System ◽  
Strength Development ◽  
Reaction Products ◽  
Activated Slag

Incorporation of CFBC ash in sodium silicate-activated slag system: Modification of microstructures and its effect on shrinkage

2019 ◽  
Vol 123 ◽  
pp. 105771 ◽  
Author(s):  
Hee-Jeong Kim ◽  
Million Tafesse ◽  
Hyo Kyoung Lee ◽  
Hyeong-Ki Kim
Keyword(s):  
Sodium Silicate ◽  
Slag System ◽  
Activated Slag

scholarly journals Effects of Light-Burnt Dolomite Incorporation on the Setting, Strength, and Drying Shrinkage of One-Part Alkali-Activated Slag Cement

Materials ◽  
2019 ◽  
Vol 12 (18) ◽  
pp. 2874 ◽  
Author(s):  
In Kyu Jeon ◽  
Jae Suk Ryou ◽  
Sadam Hussain Jakhrani ◽  
Hong Gi Kim
Keyword(s):  
Portland Cement ◽  
Ordinary Portland Cement ◽  
Setting Time ◽  
Drying Shrinkage ◽  
Slag System ◽  
Strength Development ◽  
Alkali Activated Slag ◽  
Granulated Blast Furnace Slag ◽  
Activated Slag ◽  
Alkali Activated

This study investigates the potential of light-burnt dolomite (LBD) as a supplementary cementitious material with ground granulated blast furnace slag (GGBFS) and Ordinary Portland cement (OPC). In this work, LBD was substituted for up to 20% of GGBFS in sodium sulfate-activated slag systems. The effects of LBD incorporation on the flow, setting time, compressive and flexural strength development, and drying shrinkage were explored with, X-ray diffraction and thermogravimetric analyses. LBD incorporation resulted in greater strength development of an alkali-activated slag system. The optimum LBD content for strength development was 10%, regardless of ordinary Portland cement content. In addition, LBD decreased the drying shrinkage, accelerated the hydration process, and induced hydrotalcite formation, which can be attributed to the reactive MgO inside LBD.

DOMAIN STRUCTURE VARIATION WITH THICKNESS OF Nd2Fe14B SINGLE CRYSTAL

1988 ◽  
Vol 49 (C8) ◽  
pp. C8-589-C8-590
Author(s):  
Y. Luo ◽  
Q. G. Ji ◽  
N. Zhang ◽  
B. S. Han
Keyword(s):  
Single Crystal ◽  
Domain Structure ◽  
Structure Variation
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