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

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.

OPTIMIZATION OF PROCESS FOR TOTAL RECOVERY OF ALUMINUM FROM SMELTING SLAG 2. REMOVAL OF ALUMINUM SULFATE

2013 ◽  
Vol 13 (1) ◽  
pp. 7-14 ◽  
Author(s):  
Romanita Teodorescu ◽  
Viorel Badilita ◽  
Maria Roman ◽  
Victoria Purcaru ◽  
Petre Capota ◽  
...  
Keyword(s):  
Aluminum Sulfate ◽  
Total Recovery ◽  
Smelting Slag

Preparation of Strong Acid Catalysts by Sulfate Treatment of Calcined Boehmite

1992 ◽  
Vol 57 (11) ◽  
pp. 2241-2247 ◽  
Author(s):  
Tomáš Hochmann ◽  
Karel Setínek
Keyword(s):  
Catalytic Activity ◽  
Surface Area ◽  
Aluminum Sulfate ◽  
Solid Acid ◽  
Strong Acid ◽  
Acid Strength ◽  
Solid Acid Catalysts ◽  
Acid Catalysts ◽  
Preparation Methods ◽  
Indicator Method

Solid acid catalysts with acid strength of -14.52 < H0 < -8.2 were prepared by sulfate treatment of the samples of boehmite calcined at 105-800 °C. Two preparation methods were used: impregnation of the calcined boehmite with 3.5 M H2SO4 or mixing of the boehmite samples with anhydrous aluminum sulfate, in both cases followed by calcination in nitrogen at 650 °C. The catalysts were characterized by measurements of surface area, adsorption of pyridine and benzene, acid strength measurements by the indicator method and by catalytic activity tests in the isomerization of cyclohexene, p-xylene and n-hexane. Properties of the catalysts prepared by both methods were comparable.

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