SU1574578A1 - Method of manufacturing heat-insulation material - Google Patents

Abstract

The invention relates to methods for manufacturing foam-based building materials and can be used for the manufacture of thermal insulation products or monolithic thermal insulation. In order to increase the compressive strength, the method includes the preparation of foam mass when vibrating in a horizontal plane with a frequency of 16-20 Hz, amplitude 0.4-0.6 mm, mixing the surfactant with water up to a foam multiplicity of 3-5, vibrations with a frequency of 6–12 Hz and a vibration amplitude of 0.7–0.9 mm, additional foaming in the pressure chamber during mixing and vibration in the horizontal plane with a frequency of 21–25 Hz and an amplitude of 2–4 mm under a pressure of 0.3 –0, 7 MPa for 2 - 4 minutes and filling the pressure chamber with 0.3 - 0.5 of its volume. The density of the material obtained was 300-400 kg / m ³ , and the compressive strength 1.65-1.86 MPa. 1 tab.

Description

(21) 4373897 / 31-33

(22) 04.02.88

(46) 06/30/90. Bul No. 24

(71) Moscow Institute of Civil Engineering. V.V. Kuibyshev

(72) A.P. Merkin, T. E. Kobidze and E. A. Zud ev

(53) 666.97.3.2.15 (088.8)

(56) Rabinovich F-N. Concrete, dispersed fiber reinforced. - Building materials, 1975, No. 4, p. 36-38.

USSR Author's Certificate No. 1392061, cl. From 04 To 38/10, 1986.

(54) METHOD OF MANUFACTURING HEAT-INSULATING MATERIALS

(57) The invention relates to methods for manufacturing foam-based building materials and can be used to make

thermal insulation products or monolithic thermal insulation. In order to increase the compressive strength, the method involves preparing the foam mass when vibrating in the horizontal plane with a frequency of 16-20 Hz, amplitude 0.4-0.6 mm, mixing the surfactant with water up to 3-5 foam multiplicity, introducing it into the pie mass during vibration with a frequency of 6-12 Hz and a vibration amplitude of 0.7-0.9 mm, additional foaming in the pressure chamber with mixing and vibration in the horizontal plane with a frequency of 21-25 Hz and an amplitude of 2-4 mm under pressure of 0.3-0.7 MPa for 2-4 minutes and e-field with a pressure chamber of 0.3-0.5 of its volume, 1Ј Density of the obtained m Therians is 300-400 kg / ME, a compressive strength of 1,65-1,86 MPa. 1 tab.

The invention relates to methods for manufacturing foam-based building materials and can be used for the manufacture of thermal insulation products or monolithic thermal insulation%

The purpose of the invention is to increase the compressive strength.

The method is carried out as follows.

In a mixer, an aqueous solution of a surfactant (surfactant) is prepared with a multiplicity of 3-5 when vibrated in a horizontal plane with a frequency of 16-20 Hz and an amplitude of 0.4-0.6 mm during mixing of the surfactant and water. Then produce /

mineralization of foam in the dry matter mineralization method with vibration in the horizontal plane with a frequency of 6-12 Hz and an amplitude of 0.7-0.9 mm with a water-hard ratio of 0.25-0.35 and a surfactant consumption of 0.15-0.25 % by weight of water.

After that, the foam mass is loaded into the pressure chamber at 0.3-0.5 of its volume and subjected to additional foaming with stirring and vibration in the horizontal plane with a frequency of 21-25 Hz and an amplitude of 2-4 mm for 2-4 minutes under air pressure 0 , 3-0.7 MPa. Then it is poured into forms or structural elements.

Vj vj

00

for the device of monolithic thermal insulation j.

The molded foam mass is subjected to heat treatment, for example, dried at 50-55 ° C when used as a plaster cast.

Preparation of foam mass from low multiplicity foam 3-5 allows, using the capabilities of the dry mineralization method as much as possible, to obtain in the first stage a high mass average foam mass (more than 900 kg / m) with a minimum water hard ratio (0.25-0.35) and surfactant consumption 0.15-0.25% by weight of water. one

In accordance with the proposed method of manufacturing heat insulating materials, samples are prepared and tested according to existing methods. At the same time, gypsum G-10 and cement M-30 were used as the suspect, and Progress was used as a surfactant, molding was performed by casting

five

0

five

Claims (1)

The test results and the parameters of the methods are given in the table. Invention Formula A method of manufacturing heat insulating materials, comprising preparing the foam under vibration in a horizontal plane with a vibration amplitude of 0.4-0.6 mm on a mixture of a surfactant with water, introducing it into a foam into the foam during vibration with an amplitude of 0.7-0. 9 mm, molding and drying, that is, so that, in order to increase the compressive strength, a foam with a multiplicity of 3-5 is prepared at a vibration frequency of 16-20 Hz; produced at a vibration frequency of 16-12 Hz, and prior to molding, additional foaming is carried out s in the chamber with stirring and vibration in the horizontal plane with a frequency of 21-25 Hz and an amplitude of 2-4 mm at a pressure of 0.3-0.7 and MP for 2-4 min, and the chamber is filled ), 3-0.5 of its volume Known method 7 0.55 0.8