influence of gypsum additive on the gyrolite
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influence of gypsum additive on the gyrolite

Influence of gypsum additive on the gyrolite formation ...

2010-3-1 · The influence of gypsum additive on the gyrolite formation process and a sequence of intermediary compounds formation in the CaO–SiO 2 ·nH 2 O–H 2 O system was examined and explained. The synthesis has been carried out in unstirred suspensions. The molar ratios of primary mixtures were CaO/SiO 2 = 0.66. The amount of sulphate ions to be ...

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Influence of gypsum additive on the gyrolite formation ...

Gypsum additive has no influence on the re-crystallization temperature of C–S–H(I), Z-phase and gyrolite into wollastonite. The composition of initial mixtures is recommended to calculate according to molar ratios. In other cases, upon increasing the amount of sulphate ions, the basicity of the mixture decreases and gyrolite forms more ...

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Influence of gypsum additive on the gyrolite formation ...

The influence of gypsum additive on the gyrolite formation process and a sequence of intermediary compounds formation in the CaO–SiO2·nH2O–H2O system was examined and explained.

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Influence of Gypsum Additive on the Gyrolite Formation

Gypsum additive has no influence on the re-crystallization temperature of C-S-H(I), Z-phase and gyrolite into wollastonite. The composition of initial mixtures is recommended to calculate according to molar ratios. In other cases, upon increasing the amount of sulphate ions, the basicity of the mixture decreases and gyrolite forms more difficult.

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10.1016/j.cemconres.2009.11.004 | 10.1016/j ... - DeepDyve

2020-6-11 · Kuatbaev has shown that gypsum additive has no influence on the solubility of quartz, but he stated that gypsum is more soluble than quartz and the solution contains a significant excess of anions. For this reason, SiO 4 4− is isomorphically replaced by SO 4 2− , and SO 3 -substituted calcium silicate hydrates, more soluble than pure ...

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Influence of Gypsum Additive on the Formation of ...

The quality of the aerated concrete strongly depends on the chemical composition of the raw materials, as well as the process of the hydrothermal reaction during autoclaving. Due to the variable chemical composition of fly ashes, it is necessary to identify the effect of each ion on the formation of the microstructure of aerated concrete. This paper examines the process of formation of ...

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Influence of gypsum additive on the formation of

2017-6-9 · Influence of gypsum additive on the formation of calcium silicate hydrates 1093 The main objective of the present work was to examine the influence of gypsum additives on the formation of calcium silicate hydrates in the CaO–SiO 2·nH 2O–H 2O mixture with C/S = 0.83 or 1.0 as well as to analyze and explain the formation of

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The Influences of Gypsum Water-Proofing Additive on

Influence of gypsum water-proofing additive on dihydrate gypsum crystal appearances Fig. 1 clearly shows the changes of the appearance of dihydrate gypsum crystals. Fig. 1(a) provides a typical kind of gypsum crystal appearance, whose needle crystal of big length – radius ratio interweaves together vertically and horizontally.

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Influence of additives on the precipitation of gypsum in ...

Influence of additives on the precipitation of gypsum in sodium chloride solutions: by O.A. Al Hadad and S.K. Hamdona. Desalination 228 (2008) 277-286. Abstract The kinetic of precipitation of calcium sulfate dihydrate (gypsum) in sodium chloride solutions was investigated at various supersaturation from 1.05–2.49, pH = 8.50, 25°C and ionic ...

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Influence of gypsum and limestone, used as mineral ...

2018-9-1 · Gypsum is a very popular mineral additive used in autoclaved aerated concrete (AAC) technology. In many studies, tobermorite can be synthesized from calcium-silicate-hydrate (C-S-H) phase under hydrothermal conditions in the presence of gypsum, and its impact on the tobermorite content in the AAC blocks has been discussed.

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Influence of Gypsum Additive on the Formation of ...

The quality of the aerated concrete strongly depends on the chemical composition of the raw materials, as well as the process of the hydrothermal reaction during autoclaving. Due to the variable chemical composition of fly ashes, it is necessary to identify the effect of each ion on the formation of the microstructure of aerated concrete. This paper examines the process of formation of ...

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The influence of additives on the crystallization of ...

2009-12-15 · The influence of additives on the crystallization of gypsum by Margaretha Petra Catharina Weijnen, 1986, The Technical University edition, in English

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The Influences of Gypsum Water-Proofing Additive on

Influence of gypsum water-proofing additive on dihydrate gypsum crystal appearances Fig. 1 clearly shows the changes of the appearance of dihydrate gypsum crystals. Fig. 1(a) provides a typical kind of gypsum crystal appearance, whose needle crystal of big length – radius ratio interweaves together vertically and horizontally.

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The influence of flue gas desulphurization gypsum additive ...

For the purpose of evaluating the effect of flue gas desulphurization gypsum (FGDG) additive on characteristics and evolution of humic substance (HS) during composting, HS from composts with FGDG (CPG) and without FGDG (CP) were extracted and assessed with respect to their particle size, elemental a

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The effect of gyrolite substituted with cadmium ions on ...

2020-1-22 · Akmenes Cementas, Lithuania) with a 4.5% additive of gypsum (Sigma-Aldrich, Germany) up to S a ¼ 450 m2/kg. The chemical analysis and phase composition of the clinker are shown in Table 1. Manufacture of gyrolite Pure gyrolite was synthesised in hydrothermal conditions after 48 h at 2008C from a stoichiometric composition (C/S ¼ 0.66) of

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Influence of additives on the precipitation of gypsum in ...

Influence of additives on the precipitation of gypsum in sodium chloride solutions: by O.A. Al Hadad and S.K. Hamdona. Desalination 228 (2008) 277-286. Abstract The kinetic of precipitation of calcium sulfate dihydrate (gypsum) in sodium chloride solutions was investigated at various supersaturation from 1.05–2.49, pH = 8.50, 25°C and ionic ...

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The influence of Cd-impure gyrolite on the hydration of ...

2014-7-20 · The influence of the impure gyrolite additive on the hydration of CBM. It should be emphasized that the nature of the CBM calorimetry curve is similar to the one of OPC as it involves all the five stages (the initial reaction, the induction period, the acceleratory period, the deceleration period, and the period of slow continued reaction).

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Influence of gypsum and limestone, used as mineral ...

Gypsum is a very popular mineral additive used in autoclaved aerated concrete (AAC) technology. In many studies, tobermorite can be synthesized from calcium-silicate-hydrate (C-S-H) phase under hydrothermal conditions in the presence of gypsum, and its impact on the tobermorite content in the AAC blocks has been discussed.

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The influence of flue gas desulphurization gypsum additive ...

The influence of flue gas desulphurization gypsum additive on characteristics and evolution of humic substance during co-composting of dairy manure and sugarcane pressmud. Guo X(1), Huang J(1), Lu Y(1), Shan G(1), Li Q(2).

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Study of the Influence of Complex Additives on

2017-1-23 · Study of the Influence of Complex Additives on Properties of the Gypsum-Cement-Puzzolan Binder and Concretes on Its Basis M.D. Butakovaa, S.P. Gorbunova,* a South Ural State University, 76, Lenin Avenue, Chelyabinsk, 454080, The Russian Federation Abstract Gypsum materials and products are related to progressive building materials because of ...

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The Influences of Gypsum Water-Proofing Additive on

Influence of gypsum water-proofing additive on dihydrate gypsum crystal appearances Fig. 1 clearly shows the changes of the appearance of dihydrate gypsum crystals. Fig. 1(a) provides a typical kind of gypsum crystal appearance, whose needle crystal of big length – radius ratio interweaves together vertically and horizontally.

Read More
The influence of additives on the crystallization of ...

2009-12-15 · The influence of additives on the crystallization of gypsum by Margaretha Petra Catharina Weijnen, 1986, The Technical University edition, in English

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The influence of additives on the crystallization of ...

2009-12-11 · The influence of additives on the crystallization of gypsum by Margaretha Petra Catharina Weijnen, unknown edition,

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Influence of additives on the precipitation of gypsum in ...

Influence of additives on the precipitation of gypsum in sodium chloride solutions: by O.A. Al Hadad and S.K. Hamdona. Desalination 228 (2008) 277-286. Abstract The kinetic of precipitation of calcium sulfate dihydrate (gypsum) in sodium chloride solutions was investigated at various supersaturation from 1.05–2.49, pH = 8.50, 25°C and ionic ...

Read More
The effect of gyrolite substituted with cadmium ions on ...

2020-1-22 · Akmenes Cementas, Lithuania) with a 4.5% additive of gypsum (Sigma-Aldrich, Germany) up to S a ¼ 450 m2/kg. The chemical analysis and phase composition of the clinker are shown in Table 1. Manufacture of gyrolite Pure gyrolite was synthesised in hydrothermal conditions after 48 h at 2008C from a stoichiometric composition (C/S ¼ 0.66) of

Read More
The influence of flue gas desulphurization gypsum additive ...

For the purpose of evaluating the effect of flue gas desulphurization gypsum (FGDG) additive on characteristics and evolution of humic substance (HS) during composting, HS from composts with FGDG (CPG) and without FGDG (CP) were extracted and assessed with respect to their particle size, elemental a

Read More
Multi-method approach to study the influence of

Multi-method approach to study the influence of additives in ternary systems: gypsum, water and impurities Doctoral Thesis to be awarded the degree Doctor of Engineering (Dr. –Ing.) Submitted by Jazmín Consuelo Aboytes Contreras Ingeniería Química Administrativva from Mexico City Approved by the Faculty of Natural and Materials Sciences

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The influence of flue gas desulphurization gypsum additive ...

The influence of flue gas desulphurization gypsum additive on characteristics and evolution of humic substance during co-composting of dairy manure and sugarcane pressmud. Guo X(1), Huang J(1), Lu Y(1), Shan G(1), Li Q(2).

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The effect of gyrolite substituted with cadmium ions on ...

2020-1-22 · It was found that during the main reaction of calcium silicate, the additive of gyrolite contaminated with cadmium ions had no influence on the apparent reaction rate (W app) of the hydration process (7–12 h): in all samples, the increase in the degree of

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Study of the Influence of Complex Additives on

2017-1-23 · Study of the Influence of Complex Additives on Properties of the Gypsum-Cement-Puzzolan Binder and Concretes on Its Basis M.D. Butakovaa, S.P. Gorbunova,* a South Ural State University, 76, Lenin Avenue, Chelyabinsk, 454080, The Russian Federation Abstract Gypsum materials and products are related to progressive building materials because of ...

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