Preparation of calcium sulfoaluminate-belite cement from marble sludge waste

2016 ◽  
Vol 113 ◽  
pp. 764-772 ◽  
Author(s):  
E.A. El-Alfi ◽  
R.A. Gado
Keyword(s):  
Calcium Sulfoaluminate ◽  
Sludge Waste ◽  
Belite Cement ◽  
Marble Sludge

scholarly journals Solidification/stabilization of gold mine tailings using calcium sulfoaluminate-belite cement

2019 ◽  
Vol 239 ◽  
pp. 118008 ◽  
Author(s):  
Jenni Kiventerä ◽  
Katri Piekkari ◽  
Visa Isteri ◽  
Katja Ohenoja ◽  
Pekka Tanskanen ◽  
...  
Keyword(s):  
Mine Tailings ◽  
Gold Mine ◽  
Calcium Sulfoaluminate ◽  
Gold Mine Tailings ◽  
Belite Cement

scholarly journals Effect of Calcium Carbonate Fineness on Calcium Sulfoaluminate-Belite Cement

Materials ◽  
2017 ◽  
Vol 10 (8) ◽  
pp. 900 ◽  
Author(s):  
Yeonung Jeong ◽  
Craig Hargis ◽  
Sungchul Chun ◽  
Juhyuk Moon
Keyword(s):  
Calcium Carbonate ◽  
Calcium Sulfoaluminate ◽  
Belite Cement

Self-Cleaning of Photocatalytic Mortar with Glass Aggregate and Calcium Sulfoaluminate-Belite Cement

2019 ◽  
Vol 2673 (11) ◽  
pp. 704-715
Author(s):  
Aniruddha Baral ◽  
Jeffery R. Roesler
Keyword(s):  
Fly Ash ◽  
Surface Characteristics ◽  
Cementitious Materials ◽  
The Self ◽  
Fine Aggregate ◽  
Cleaning Efficiency ◽  
Solution Ph ◽  
Calcium Sulfoaluminate ◽  
Self Cleaning ◽  
Belite Cement

The self-cleaning performance and mechanism of photocatalytic mortars with different cementitious materials and aggregates was evaluated through a rhodamine B (RhB) degradation test. The self-cleaning property of photocatalytic concrete helps to preserve its aesthetics, NOx removal potential, and surface reflectance. In this study, the addition of TiO2 to calcium sulfoaluminate-belite cement (CSAB) demonstrated a self-cleaning potential like ordinary Portland cement (OPC). Photocatalytic mortar mixes with OPC demonstrated increased self-cleaning efficiency with glass fine aggregate and with higher TiO2 content. However, glass addition was not effective in improving the self-cleaning efficiency of CSAB mortar with TiO2. Replacement of OPC with class F fly ash significantly decreased self-cleaning efficiency. The decrease in pore solution pH with fly ash replacement of OPC or CSAB cement instead of OPC was hypothesized as the cause for the decline in self-cleaning efficiency. An experiment to study the photocatalytic degradation rate of RhB revealed that it increased with higher pH. RhB photocatalytically degrades through N-de-ethylation and cleavage of the chromophore structure depending on the reaction surface characteristics with the first path investigated in this paper. It was shown that some of the RhB on the photocatalytic mortar surface was degraded by the N-de-ethylation path regardless of the cement and aggregate constituents and increasing TiO2 (anatase) content increased RhB degradation through N-de-ethylation.

scholarly journals Immobilization of heavy metals, selenate, and sulfate from a hazardous industrial side stream by using calcium sulfoaluminate-belite cement

2020 ◽  
Vol 258 ◽  
pp. 120560 ◽  
Author(s):  
Katri Piekkari ◽  
Katja Ohenoja ◽  
Visa Isteri ◽  
Pekka Tanskanen ◽  
Mirja Illikainen
Keyword(s):  
Heavy Metals ◽  
Calcium Sulfoaluminate ◽  
Side Stream ◽  
Belite Cement
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