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A platform for research: civil engineering, architecture and urbanism
Состав и способ изготовления хромомагнезитового жаростойкого бетона
FIELD: construction; technological processes.SUBSTANCE: present invention relates to heat-resistant concretes. Chromium-magnesite heat-resistant concrete manufacturing composition, including binder, chromium-magnesite aggregate, fine fillers and water, as the binder contains colloidal sodium polysilicate with silicate module of 6.5, obtained by introducing the 16 % hydrosol of silica into the 20 % aqueous sodium silicate solution at a ratio of 1:1.6, stirring at 100 °C for 3.0 h with holding for not more than 0.5 h, and finely ground chromium-magnesite and periclase-chromite products finely ground scrap as finely ground filler with the following ratio of components, wt%: chromium-magnesite filler of 0.18–7 mm fraction: 60–80, finely ground chromium-magnesite S=2,500–3,000 cm/g: 8–16, colloidal nano-dispersed sodium polysilicate: 5–12.5, finely ground periclase-chromite products scrap S=2,500–3,000 cm/g: 7–11.5, water from the calculation of W/S of 0.12–0.14. Chromium-magnesia heat-resistant concrete producing method from the above composition, consisting in fact, that in the prefabricated colloidal sodium polysilicate with simultaneous mixing in the high-speed mixer, said finely ground fillers and water are introduced to obtain the uniform suspension, which is mixed with the chromium-magnesia aggregate in the forced action paddle mixer until a homogeneous mass is obtained, next, this mass is formed by the layer-by-layer compaction and the mass hardening is carried out during the drying process by the mode of: raising the temperature to 200 °C for 1 hour, holding at this temperature for 2 hours until the water complete removed.EFFECT: increase in thermal and water resistance.2 cl, 2 tbl
Состав и способ изготовления хромомагнезитового жаростойкого бетона
FIELD: construction; technological processes.SUBSTANCE: present invention relates to heat-resistant concretes. Chromium-magnesite heat-resistant concrete manufacturing composition, including binder, chromium-magnesite aggregate, fine fillers and water, as the binder contains colloidal sodium polysilicate with silicate module of 6.5, obtained by introducing the 16 % hydrosol of silica into the 20 % aqueous sodium silicate solution at a ratio of 1:1.6, stirring at 100 °C for 3.0 h with holding for not more than 0.5 h, and finely ground chromium-magnesite and periclase-chromite products finely ground scrap as finely ground filler with the following ratio of components, wt%: chromium-magnesite filler of 0.18–7 mm fraction: 60–80, finely ground chromium-magnesite S=2,500–3,000 cm/g: 8–16, colloidal nano-dispersed sodium polysilicate: 5–12.5, finely ground periclase-chromite products scrap S=2,500–3,000 cm/g: 7–11.5, water from the calculation of W/S of 0.12–0.14. Chromium-magnesia heat-resistant concrete producing method from the above composition, consisting in fact, that in the prefabricated colloidal sodium polysilicate with simultaneous mixing in the high-speed mixer, said finely ground fillers and water are introduced to obtain the uniform suspension, which is mixed with the chromium-magnesia aggregate in the forced action paddle mixer until a homogeneous mass is obtained, next, this mass is formed by the layer-by-layer compaction and the mass hardening is carried out during the drying process by the mode of: raising the temperature to 200 °C for 1 hour, holding at this temperature for 2 hours until the water complete removed.EFFECT: increase in thermal and water resistance.2 cl, 2 tbl
Состав и способ изготовления хромомагнезитового жаростойкого бетона
2018-06-15
Patent
Electronic Resource
Russian
IPC:
C04B
Kalk
,
LIME
/
B82B
Nanostrukturen, gestaltet durch die Manipulation von einzelnen Atomen, Molekülen, oder einer begrenzten Ansammlung von Atomen oder Molekülen als einzelne Einheiten
,
NANOSTRUCTURES FORMED BY MANIPULATION OF INDIVIDUAL ATOMS, MOLECULES, OR LIMITED COLLECTIONS OF ATOMS OR MOLECULES AS DISCRETE UNITS
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