Crystal structure of alinite

Ilyukhin, V. V.; Nevsky, N. N.; Bickbau, M. J.; Howie, R. Α.

doi:10.1038/269397a0

Cited by 30 publications

(8 citation statements)

References 2 publications

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“…2(C)). The structure of alinite reported by Ilyukhin et al 5 exhibited one unique silicon position in an isolated tetrahedron. In a similar material, belinite (Ca 8 Mg(SiO 4 ) 4 Cl 2 ), only one peak at -75.8 ppm was observed in the 29 Si NMR spectrum.…”

Section: (1) Synthesis Of Alinitementioning

confidence: 91%

“…[1][2][3][4] In this respect, a chlorine-bearing alinite cement is a new emerging class of cements. [5][6][7] The clinkering temperature for alinite has been reported to be as low as 1000°-1100°C, and its hydraulic properties are comparable or even superior to ordinary portland cement. 1,8 In addition, alinite cement is easier to grind than ordinary portland cement, resulting in a substantial energy saving for grinding.…”

Section: Introductionmentioning

confidence: 99%

“…7 However, the likelihood of reinforcement corrosion by free chloride on alinite hydration limits its applications, such as nonreinforced concrete products, marine structures, soil stabilization, and oil-well cements. 2-4,9 -11 The crystal structure of alinite has been determined by Ilyukhin et al 5 and Ca 11 ((SiO 4 ) 3 (AlO 4 ))OCl has been suggested as its ideal formula from crystallographic studies. However, the evaporation of Cl Ϫ ions in the clinckering process and the higher capacity for isomorphic substitution make it difficult to determine the exact chemical composition.…”

Section: Introductionmentioning

confidence: 99%

“…2,12 Various molecular formulas have been proposed, and the optimum amount of chloride addition to the raw mix has been reported to be in the range of 5%-23% of CaCl 2 . 5,9,13,14 It is generally agreed that MgO is essential for alinite formation. 8,15 Recently, Neubauer and Pollmann 9 have reported that alinite does not have a fixed chemical composition and is similar to a solid solution.…”

Section: Introductionmentioning

confidence: 99%

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Synthesis and Hydration Characteristics of Alinite Cement

Kim

Hong

Kim

2002

Journal of the American Ceramic Society

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A chlorine‐bearing alinite cement was synthesized using reagent‐grade chemicals, and the phase evolution and hydration behavior of the alinite clinker were examined. The effects of the MgO content on alinite formation and hydration also were investigated. Alinite began to appear at 1000°C from β‐C2S, C11A7CaCl2, and unreacted raw materials, and an almost single‐phase alinite was obtained at 1300°C. The alinite phase also was produced without MgO addition. However, CaO, β‐C2S, and C11A7CaCl2 phases were present. Alinite cements hydrated rapidly after a short incubation period, and the hydration products were C‐S‐H gels, Ca(OH)2, and a Fridel's saltlike phase. The local environmental changes of silicon and aluminum during the formation and hydration of alinite were determined using magic‐angle‐spinning nuclear magnetic resonance spectroscopy. The Cl−‐ion exsolution from the alinite paste during hydration was measured using ion chromatography.

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Section: (1) Synthesis Of Alinitementioning

confidence: 91%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Synthesis and Hydration Characteristics of Alinite Cement

Kim

Hong

Kim

2002

Journal of the American Ceramic Society

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“…Mixing SR with FA and other materials can effectively reduce the pollution of the local environment caused by chloride ion seepage from SR. The chemical composition of SR and alinite mineral is very similar, but differing in content of Cao, CaCI 2 [20,21]. Hou [22] fired a white cement using SR as raw material.…”

Section: Introductionmentioning

confidence: 99%

Mechanical Characteristics of Soda Residue Soil Incorporating Different Admixture: Reuse of Soda Residue

Yan

Zhang

et al. 2020

Sustainability

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Soda residue (SR), a waste by-product of sodium carbonate production, occupies land resources and pollutes the environment seriously. To promote the resource reusing of waste SR, this paper studies the feasibility of utilizing SR for the preparation of soda residue soil (SRS) through laboratory and field tests. The SR and fly ash (FA) were mixed with six different proportions (SR:FA is 1:0, 10:1, 8:1, 6:1, 3:1, 1:1) to prepare SRS, and the optimum water content, maximum dry density, shear strength, and unconfined compression strength of the SRS were measured. The representative SRS (SR:FA is 10:1) was selected to investigate the compression performance and collapsibility. The preparation and filling method of SRS in the field was proposed, and the effects of gravel, sand, and lime on the mechanical properties of SRS were studied through field tests. The results show that the addition of FA contributed to the strength development of SR, and the addition of lime, sand and rubble have a significant effect on the subgrade bearing capacity of SRS. The subgrade bearing capacity and deformation modulus of SRS in field tests is more than 210 kPa and 34.48 MPa, respectively. The results provide experimental basis and reference for the preparation of SRS, the scientific application of SRS in geotechnical engineering to promote sustainable development.

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d1586, X.2.1.1.2 Anhydrous oxo-compounds of silicon with Cl-, Br-, I- as additional anions

Pieper¹,

Pies²,

Weiß³

Key Element: Si. Part 2

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Crystal structure of alinite

Cited by 30 publications

References 2 publications

Synthesis and Hydration Characteristics of Alinite Cement

Synthesis and Hydration Characteristics of Alinite Cement

Mechanical Characteristics of Soda Residue Soil Incorporating Different Admixture: Reuse of Soda Residue

d1586, X.2.1.1.2 Anhydrous oxo-compounds of silicon with Cl-, Br-, I- as additional anions

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