RU2007142320A

RU2007142320A - METHOD FOR PRODUCING SILICATE WALL PRODUCTS, COMPOSITION OF RAW MATERIALS FOR PRODUCING SILICATE WALL PRODUCTS, GRANULATED FILLER FOR SILICATE WALL PRODUCTS BASED ON SILICON AND SILEMON-SILEMIS

Info

Publication number: RU2007142320A
Application number: RU2007142320/03A
Authority: RU
Inventors: Валерий Станиславович Лесовик (RU); Валерий Станиславович Лесовик; Александр Викторович Мосьпан (RU); Александр Викторович Мосьпан; Валерия Валерьевна Строкова (RU); Валерия Валерьевна Строкова; Виктор Михайлович Воронцов (RU); Виктор Михайлович Воронцов
Priority date: 2007-11-15
Filing date: 2007-11-15
Publication date: 2009-05-20
Also published as: RU2361838C1

Abstract

1. Способ получения силикатных стеновых изделий, включающий смешивание известкового компонента и заполнителя, включающего кремнеземсодержащий 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 кремнезема 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 0.5-10.0 is used as a filler mm, consisting of a core and a shell, and in the manufacture of the core using ground to a specific surface area of 150-250 m2 / kg mixture consisting of the above silica-containing component in silica 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 / cm3 in an amount of 0.1- 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 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 grain size of 0.5-10.0 is used as a filler mm, consisting of a core and a shell, wherein the core used in the manufacture of milled to a specific surface of 150-250 m ² / kg of a mixture consisting of the above silica-containing component ide silica and alkali metal hydroxide in a weight ratio 0,70-0,95: 0.05-0.30, as binder, an aqueous sodium silicate solution density of 1.2-1.3 g / cm ³ in an amount of 0.1 -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 weight 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 silica 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 further comprises 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 silica with alkali metal hydroxide at a mass ratio of 0.70-0.95: 0.05-0.30, using an aqueous binder races a 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 weight 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, including silica-containing and lime-containing components, characterized in that the filler is made in the form of hardened at the ambient temperature of the granules with a strength of at least 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% with respect to the weight of the core of the granule, the mixture is ground to a specific surface of 150-250 m ² / kg of a mixture of the above silica-containing component in the form of silica 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