Preparation of sulphoaluminate belite cement from fly ash

Sahu, Sadananda; Majling, J.

doi:10.1016/0008-8846(94)90030-2

Cited by 68 publications

(25 citation statements)

References 5 publications

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“…Calcium sulfoaluminate (C 4 A 3 $) is one of the main constituents of a low-CO 2 alternative clinker [1][2][3][4], which possesses a rapid hydration rate and is the most abundant constituent of sulfoaluminate cement clinkers in marine engineering and waterproof engineering [5][6][7][8][9]. The substitution of Ba 2+ for Ca 2+ to improve the performance of C 4 A 3 $ has been reported [10][11][12][13].…”

Section: Introductionmentioning

confidence: 99%

EFFECT OF K₂O AND MgO ON THE FORMATION AND HYDRATION ACTIVITY OF Ba-BEARING CALCIUM SULFOALUMINATE

Shen¹

2016

Ceramics - Silikaty

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Section: Introductionmentioning

confidence: 99%

EFFECT OF K₂O AND MgO ON THE FORMATION AND HYDRATION ACTIVITY OF Ba-BEARING CALCIUM SULFOALUMINATE

Shen¹

2016

Ceramics - Silikaty

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“…One such candidate is fly ash, which has reportedly been tried as a source of silica and alumina needed in the cement manufacturing process [Canpolat et al, 2004;Sahu and Majling, 1994]. Another option is to revisit a previously proven German concept of using gypsum, especially some of the industrial byproduct gypsums, as starting material to simultaneously manufacture sulphuric acid and cement [Anonymous, 1996].…”

Section: Alternative Raw Materials Sourcesmentioning

confidence: 99%

An Overview of Cement production: How “green” and sustainable is the industry?

Potgieter

2012

EMSD

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Problem statement: This paper tries to answer the question: Is cement production still a sustainable industry in the 21 st century? Approach: It starts off by considering the current status quo and potential alternatives for the production process, right from the raw meal composition stage through to the final application of cement in concrete. Results: In the process alternative raw meal components and energy sources are reviewed in detail. The changes that could and should be made to cement plants and equipment to produce cement more sustainably, as well as different types of other binders that can be used for construction, are discussed. The suitability of the cement production process to destroy wastes and utilize byproducts from other industrial processes, are highlighted and analysed. Alternative methods and equipment to manufacture cement, are summarized and ways to get rid off or convert the released carbon dioxide from the cement manufacturing, are discussed. Conclusions:In the final instance the conclusion is reached that the cement industry, despite proven new technology, equipment and concepts, can do more to respond fast enough and to a sufficient extent to improve the sustainability of their operations substantially and to an acceptable level for the 21 st century.

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“…The clinkers were very easy to grind due to their brittleness [4]. Sahu et alia [12] produced cements of Types 2 and 3 from limestone, fly ash and gypsum at 1200 ºC, for a bearing time of 30 minutes and cooled by fresh air. Kasselouri et alia [17] in 1995 obtained cement of Type 3 at 1280 ºC from limestone, gypsum, bauxite, silica sand, and iron-rich industrial by-products.…”

Section: Introductionmentioning

confidence: 99%

“…Expansive belite-rich calcium sulphoaluminate cements: Besides the main components of the SAB cements they contain free lime up to 10 (g/g)% which promotes expansion. This type of cement can be used in restricted areas requiring shrinkage-resistant and self-stressing cements [4,12,16,20,21]. 3.…”

Section: Introductionmentioning

confidence: 99%

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Characterisation of Cements From Dominantly Volcanic Raw Materials of the Carpathian Bend Zone

Halmagyi¹,

Mosonyi²,

Fazekas³

et al. 2016

Hungarian Journal of Industry and Chemistry

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This paper presents the results of laboratory investigations regarding the production of cements from local raw materials, such as limestone from Varghis, gypsum from Nucsoara, basaltic scoria from Racosul de Jos, volcanic tuff from Racosul de Sus, diatomite from Filia, and red mud from Oradea. The raw mixtures, based on modified Bogue calculations, contain limestone, gypsum, and one or two of the above-mentioned materials. The cements resulted from clinker grinding in a laboratory gas furnace at 1260-1300 ºC, with one hour at the peak temperatures, and were characterised for Blaine specific surface area, specific density, and mineral phases. Physico-mechanical properties, such as water content for normal consistency, setting time, soundness, and compressive strength were also determined. Results show that these cements contain belite, ferrite, calcium sulphoaluminate, anhydrite, and some minor compounds.

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Preparation of sulphoaluminate belite cement from fly ash

Cited by 68 publications

References 5 publications

EFFECT OF K₂O AND MgO ON THE FORMATION AND HYDRATION ACTIVITY OF Ba-BEARING CALCIUM SULFOALUMINATE

EFFECT OF K₂O AND MgO ON THE FORMATION AND HYDRATION ACTIVITY OF Ba-BEARING CALCIUM SULFOALUMINATE

An Overview of Cement production: How “green” and sustainable is the industry?

Characterisation of Cements From Dominantly Volcanic Raw Materials of the Carpathian Bend Zone

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