RU2012134722A

RU2012134722A - GRANULATED NANOSTRUCTURING FILLER BASED ON HIGH SILICON COMPONENTS FOR CONCRETE MIXTURE, CONCRETE MIXTURE FOR PRODUCING CONCRETE BUILDING PRODUCTS (OPTIONS) AND CONCRETE BUILDING

Info

Publication number: RU2012134722A
Application number: RU2012134722/03A
Authority: RU
Inventors: Валерия Валерьевна Строкова; Алексей Викторович Максаков; Игорь Владимирович Жерновский; Юлия Николаевна Огурцова
Priority date: 2012-08-15
Filing date: 2012-08-15
Publication date: 2014-02-20
Also published as: RU2518629C2

Abstract

1. Гранулированный наноструктурирующий заполнитель на основе высококремнеземистых компонентов для бетонной смеси, изготовленный из кремнеземсодержащего сырья в виде гранул размером 0,5-10 мм, состоящих из ядра и защитной оболочки, отличающийся тем, что ядро получено гранулированием высококремнеземистой породы, предварительно измельченной до прохождения на сите 0,315 или вспученного перлитового песка, взятых в соотношении 0,60-0,95:0,05-0,40 по массе, скрепленных щелочесодержащим связующим, состоящим из водного раствора смеси гидроксида щелочного металла и силиката Na плотностью 1,2-1,3 г/см(щелочь : силикат = 0,6-0,99:0,01-0,4 по массе) в количестве 5-30% от смеси, а защитная оболочка сформирована на поверхности ядра его скатыванием сухим портландцементом марки не ниже СЕМ II 32,5, с последующим твердением до прочности не менее 0,12 МПа.2. Бетонная смесь на основе заявляемого гранулированного наноструктурирующего заполнителя для изготовления бетонных строительных изделий, включающая заполнитель по п.1, портландцемент, песок и воду при следующем соотношении компонентов, мас.%:3. Бетонная смесь на основе заявляемого гранулированного наноструктурирующего заполнителя для изготовления бетонных строительных изделий, включающая заполнитель по п.1, портландцемент и воду при следующем соотношении компонентов, мас.%:4. Бетонное строительное изделие, характеризующееся тем, что оно изготовлено из смеси по пп.2 и 3.1. Granular nanostructured aggregate based on highly siliceous components for concrete mix, made of silica-containing raw materials in the form of granules with a size of 0.5-10 mm, consisting of a core and a protective shell, characterized in that the core is obtained by granulation of high siliceous rock, previously crushed before passing to sieve 0.315 or expanded perlite sand, taken in a ratio of 0.60-0.95: 0.05-0.40 by weight, bonded with an alkali-containing binder, consisting of an aqueous solution of a mixture of alkali hydroxide metal and Na silicate with a density of 1.2-1.3 g / cm (alkali: silicate = 0.6-0.99: 0.01-0.4 by weight) in an amount of 5-30% of the mixture, and the protective shell formed on the surface of the core by rolling it with dry Portland cement of grade not lower than CEM II 32.5, followed by hardening to a strength of at least 0.12 MPa. 2. A concrete mixture based on the inventive granular nanostructured aggregate for the manufacture of concrete building products, including aggregate according to claim 1, Portland cement, sand and water in the following ratio, wt.%: 3. A concrete mixture based on the inventive granular nanostructured aggregate for the manufacture of concrete building products, including aggregate according to claim 1, Portland cement and water in the following ratio, wt.%: 4. Concrete construction product, characterized in that it is made of a mixture according to claims 2 and 3.

Claims

1. Granular nanostructured aggregate based on highly siliceous components for concrete mix, made of silica-containing raw materials in the form of granules with a size of 0.5-10 mm, consisting of a core and a protective shell, characterized in that the core is obtained by granulation of high siliceous rock, previously crushed before passing to sieve 0.315 or expanded perlite sand, taken in a ratio of 0.60-0.95: 0.05-0.40 by weight, bonded with an alkali-containing binder, consisting of an aqueous solution of a mixture of alkali hydroxide Na metal silicate and a density of 1.2-1.3 g / cm ³ (lye: silicate = 0,6-0,99: 0.01-0.4 by weight) in an amount of 5-30% of the mixture, and the protective the shell is formed on the surface of the core by rolling it with dry Portland cement of a grade not lower than CEM II 32.5, followed by hardening to a strength of at least 0.12 MPa.

2. A concrete mixture based on the inventive granular nanostructured aggregate for the manufacture of concrete building products, including aggregate according to claim 1, Portland cement, sand and water in the following ratio, wt.%:

Portland cement 15-25 sand 50-65 water 10-15 aggregate 2-20.

3. A concrete mixture based on the inventive granular nanostructured aggregate for the manufacture of concrete building products, including aggregate according to claim 1, Portland cement and water in the following ratio, wt.%:

Portland cement 20-35 water 10-15 aggregate 50-70.

4. Concrete construction product, characterized in that it is made from a mixture according to claims 2 and 3.