RU2007142314A

RU2007142314A - METHOD FOR PRODUCING SILICATE WALL PRODUCTS, COMPOSITION OF RAW MATERIALS FOR PRODUCTION OF SILICATE WALL PRODUCTS, GRANULAR FILLER FOR SILICATE WALL PRODUCTS ON THE BASIS OF GLASS AND CLEARWALL

Info

Publication number: RU2007142314A
Application number: RU2007142314/03A
Authority: RU
Inventors: Валерия Валерьевна Строкова (RU); Валерия Валерьевна Строкова; Руслан Валерьевич Лесовик (RU); Руслан Валерьевич Лесовик; Виктор Михайлович Воронцов (RU); Виктор Михайлович Воронцов; Виктор Иванович Мосьпан (RU); Виктор Иванович Мосьпан
Priority date: 2007-11-15
Filing date: 2007-11-15
Publication date: 2009-05-20
Also published as: RU2361837C1

Abstract

1. Способ получения силикатных стеновых изделий, включающий смешивание известкового компонента и заполнителя, включающего кремнезем-содержащий и известьсодержащий компоненты, формование строительных изделий и последующую их автоклавную обработку, отличающийся тем, что в качестве заполнителя используют гранулированный композит с размером гранул 0,5-10,0 мм, состоящий из ядра и оболочки, причем при изготовлении ядра используют молотую до удельной поверхности 150-250 м2/кг смесь, состоящую из вышеуказанного кремнеземсодержащего компонента в виде стеклобоя и гидроксида щелочного металла в массовом соотношении 0,70-0,95:0,05-0,30, в качестве связки используют водный раствор силиката натрия плотностью 1,2-1,3 г/см3 в количестве 0,1-7,0% по отношению к массе ядра гранулы, формирование защитной оболочки на поверхности ядра гранулы производят в среде сухой пылевидной смеси из вышеуказанного известьсодержащего компонента и натрия кремнефтористого в массовом соотношении 0,85-0,95: 0,05-0,15; полученный гранулированный заполнитель вводят в силикатную смесь после приобретения им прочности в результате твердения при температуре окружающей среды не менее 2,1 МПа, при этом в сырьевую смесь при перемешивании дополнительно вводят кремнеземсодержащий компонент при следующем соотношении компонентов, мас.%: ! известьсодержащий компонент10,0-12,5кремнеземсодержащий компонент50,0-82,5гранулированный заполнитель5-40 ! 2. Силикатная смесь для изготовления стеновых изделий способом по п.1, включающая известьсодержащий компонент и заполнитель, содержащий кремнеземсодержащий и известьсодержащий компоненты, отличающаяся тем, что заполнитель выполнен в виде г1. A method of producing silicate wall products, comprising mixing a lime component and a filler, including silica-containing and lime-containing components, molding building products and their subsequent autoclaving, characterized in that a granular composite with a grain size of 0.5-10 is used as a filler , 0 mm, consisting of a core and a shell, and in the manufacture of the core, a mixture consisting of the aforementioned silica-containing component in the ground to a specific surface of 150-250 m2 / kg is used. ide cullet and alkali metal hydroxide in a mass ratio of 0.70-0.95: 0.05-0.30, as a binder use an aqueous solution of sodium silicate with a density of 1.2-1.3 g / cm3 in an amount of 0.1- 7.0% with respect to the mass of the core of the granule, the formation of a protective shell on the surface of the core of the granule is carried out in a dry dusty mixture of the above lime-containing component and sodium silicofluoride in a mass ratio of 0.85-0.95: 0.05-0.15; The obtained granular aggregate is introduced into the silicate mixture after it has gained strength as a result of hardening at an ambient temperature of at least 2.1 MPa, while a silica-containing component is additionally introduced into the raw material mixture with stirring in the following ratio of components, wt.%:! lime-containing component 10.0-12.5 silica-containing component 50.0-82.5 granular aggregate 5-40! 2. A silicate mixture for the manufacture of wall products by the method according to claim 1, comprising a lime-containing component and a filler containing silica-containing and lime-containing components, characterized in that the filler is made in the form of

Claims

1. A method of producing silicate wall products, comprising mixing a lime component and a filler, including silica-containing and lime-containing components, molding building products and their subsequent autoclaving, characterized in that a granular composite with a granule size of 0.5-10 is used as a filler , 0 mm, consisting of a core and a shell, and in the manufacture of the core using ground to a specific surface of 150-250 m ² / kg mixture consisting of the above silica-containing component in in the form of cullet and alkali metal hydroxide in a mass ratio of 0.70-0.95: 0.05-0.30, an aqueous solution of sodium silicate with a density of 1.2-1.3 g / cm ³ in an amount of 0.1 is used as a binder -7.0% with respect to the weight of the core of the granule, the formation of a protective shell on the surface of the core of the granule is carried out in a dry, dusty mixture of the above lime-containing component and sodium silicofluoride in a mass ratio of 0.85-0.95: 0.05-0.15 ; the obtained granular aggregate is introduced into the silicate mixture after it acquires strength as a result of hardening at an ambient temperature of at least 2.1 MPa, while a silica-containing component is additionally introduced into the raw material mixture with stirring in the following ratio of components, wt.%:

lime component 10.0-12.5 silica component 50.0-82.5 granular aggregate 5-40

2. Silicate mixture for the manufacture of wall products by the method according to claim 1, comprising a lime-containing component and a filler containing silica-containing and lime-containing components, characterized in that the filler is made in the form of granules consisting of a core and a shell, the granule has a size of 0.5-10 , 0 mm and contains as a core an interconnected aqueous solution of sodium silicate with a density of 1.2-1.3 g / cm ³ in an amount of 0.1-7.0% relative to the mass of the core of the granules, ground to a specific surface of 150- 250 m ² / kg of a mixture consisting of the above kre non-containing component in the form of cullet and alkali metal hydroxide in a mass ratio of 0.70-0.95: 0.05-0.30, the shell consists of a dry pulverized mixture consisting of the above lime-containing component and sodium silicofluoride in a mass ratio of 0.85 -0.95: 0.05-0.15, while the silicate mixture additionally contains a silica-containing component in the following ratio of components, wt.%:

lime component 10.0-12.5 silica component 50.0-82.5 granular aggregate 5-40

3. A granular composite aggregate for silicate wall products, made according to claim 1, comprising silica-containing and lime-containing components, characterized in that the aggregate is made in the form of granules with a size of 0.5-10.0 mm, consisting of a core and a shell, the core is bonded together, ground to a specific surface area of 150-250 m ² / kg, a mixture of the above silica-containing component in the form of cullet with alkali metal hydroxide at a mass ratio of 0.70-0.95: 0.05-0.30, using an aqueous binder rast a thief of sodium silicate with a density of 1.2-1.3 g / cm ³ in an amount of 0.1-7.0% relative to the mass of the core of the granule, and the protective shell on the surface of the core consists of a dry dusty mixture of the above lime-containing component and sodium silicofluoride in mass ratio of 0.85-0.95: 0.05-0.15.

4. A silicate wall product, such as a brick, tile, block, etc., manufactured according to the method described in claim 1, containing a lime-containing component and a filler comprising silica-containing and lime-containing components, characterized in that the filler is made in the form of hardened at ambient temperature of granules with a strength of not less than 2.1 MPa, consisting of a core and a shell, while the granule is made in the size of 0.5-10.0 mm and contains as a core an interconnected aqueous solution of sodium silicate with a density of 1.2-1, 3 g / cm ³ per col in the amount of 0.1-7.0% relative to the mass of the granule core, the mixture is ground to a specific surface area of 150-250 m ² / kg of a mixture of the above silica-containing component in the form of cullet and alkali metal hydroxide in a mass ratio of 0.70-0.95: 0 , 05-0.30, the shell consists of a dry pulverized mixture of the above lime-containing component and sodium silicofluoride at a mass ratio of 0.85-0.95: 0.05-0.15, while the silicate mixture additionally contains a silica-containing component in the following ratio components, wt.%:

lime component 10.0-12.5 silica component 50.0-82.5 granular aggregate 5-40