SU730654A1 - Raw mixture for producing light heat-resistant concrete - Google Patents

Description

The invention relates to compositions of raw mixtures for the manufacture of building products and can be used for the production of foamed materials, binders for the manufacture of products with lightweight filler $ (perlite, fiberglass), binders, decorative boards and other products of industrial and domestic construction.

A known raw material mixture for the production of light heat-resistant betsna, including _{) ()} phosphate binder, chamotte, refractory clay raw materials and expanded clay gravel (1).

Its disadvantage is low strength.

Closest to the described is a raw material mixture for the manufacture of light phosphate _{) 5-} fat concrete, including wt.%: High-gloss earth-based material 60-75, dispersed aluminum 3-6, phosphate binder 15-25, urea-formaldehyde resin 4-12 and water - the rest 12]. 20

However, this mixture has a low strength. In addition, it is obtained on the basis of pure raw materials, which leads to the high cost of the resulting material.

The purpose of the invention is to increase strength and reduce the cost of concrete.

This is achieved by the fact that the raw material mixture for the manufacture of light heat-resistant concrete, including a phosphate binder, high alumina aggregate, dispersed aluminum, additive and water, contains as a phosphate binder the wastes of production of laurin peroxide of the general formula H ₃ P0 ₃ + C _n H _{2n + J} O ₂ as high-alumina aggregate - fosfatokaltsiysilikatnye hromoalyumosilikatnye and waste oil refining industry, as an additive - sodium silicofluoride, and optionally clay and feldspar next coo wearing components, wt.%:

Laurin peroxide production waste (H ₃ PO ₃ + C _n H _{2n +} i0 ₂ 11-50

Phosphate-calcium silicate waste 5-80

Chromoaluminosilicate Waste1-40

Dispersed aluminum 0.01-10

Sodium silicofluoride 0.1—20

Clay 0.5-50

730654 4

Feldspar 0.1—20

Water Else

A distinctive feature of the proposed mixture _t is that phosphate calcium-silicate and chromoaluminosilicate waste from the refining industry mixed with mineral filler (clay, feldspar) are used as high-alumina material, and waste from the production of Laurin peroxide (Н ₃ РО ₃ +) is used as a phosphate binder. C _n H _{2n + 1} O ₂ ). Fatty Acids Included in Phosphate Waste

Laurin peroxide production waste (на ₃ ΡΟ ₃ -κ: _η Η _{2η +} ι0 ₂ 16

Dispersion aluminum0.1

Mineral filler:

₅ Feldspar ₅

Sodium silicofluoride5

Water24

The resulting samples are fired at 850900 ° for 8-10 hours

to Physico-mechanical and thermophysical properties of the obtained material in comparison with the known are given in table. 1.

increase the viscosity of the mass at the time of gas evolution, which leads to the formation of stable foam mass and better structuring of the system 15, ensuring the strength of the resulting material. In addition, the foamed materials obtained on the basis of the proposed raw materials: mixtures retain their initial strength up to 1000 ° C, without undergoing significant changes of 20. The isothermal exposure of the obtained material at 950-1000 ° C gives it additional strength and water resistance.

Example 1. To obtain foamed 25 material separately prepared powdery acidic part of the raw material mixture.

To prepare the powder composition, to 20% phosphate-calcium-silicate waste, previously cleaned of large inclusions, add 10% feldspar, 1% sodium silicofluoride and 14% clay, pre-crushed to a particle size of 0.1 - 0.5 mm. To this mixture was added 10% chromoaluminosilicate waste and 0.1% dispersed aluminum. The resulting components are thoroughly mixed until a homogeneous mass is formed.

The acidic part of the mixture is prepared by mixing in a glass container 20% waste of laurin peroxide (H ₃ PC ^ + C _p N _2n ^ O ₂ ) with 25% water. In this case, the 40 acid solution is heated to 40-50 ° C. The previously prepared powder composition is poured into a warm acid solution; it is rapidly mixed for 2–3 min until a homogeneous foam mass is formed. The resulting mixture is poured into FormG with a water-absorbing pad, standing to stabilize the foam mass for 20-25 hours, and then dried at 100 ° C for 6-10 hours. The resulting samples are fired at 950-980 ° C for 10 h. 50

PRI me R 2. The raw material mixture to obtain a foam material is prepared according to

technology described in example 1, with the corresponding Wearing components, wt.%: Phosphate calcium silicate 55 waste 28 Chromoaluminosilicate waste 2 Clay 20

Table 1 Material Name l - kg ^and ST 2 cm s-kgf Famous light phosphate concrete 6 - - Suggested phosphate material: composition 1 8 10 composition 2 10 fifteen

As can be seen from the above data, the obtained material from the proposed mixture is superior in physicomechanical parameters to materials from the known raw material mixture, not inferior to them in terms of thermophysical parameters, while also having increased resistance to temperature loads.

The economic efficiency of the use of industrial wastes compared to pure products is shown in table No. 2. The consumption of the components of the mixture is taken on the basis of the expenditure coefficient® of the proposed raw material mixture. The cost of waste production of laurin peroxide (N ₃ PO ₃ + C _p N _{? P + 1} 0 ₂ ) is taken equal to the cost of pure phosphoric acid H ₃ PO ₄ .

table 2 Name of raw mixes of the same composition The cost per unit weight of the mixture, rub. t Raw mix for the manufacture of light phosphate. concrete 14330 The raw material mixture for the manufacture of foamed gypsum-cement 92.49 raw, mixture. 41J4-

Claims (2)

The invention relates to compositions of raw materials for the manufacture of building products and can be used for the production of foamed materials that bind for the manufacture of products with lightweight filler (perlite, glass fiber), living, decorative plates and other products of industrial and household construction. The known raw material mixture for the production of lightweight heat-resistant concrete, including phosphate binder, tar, refractory clay raw materials and expanded clay gravel 111 The disadvantage of it is low strength. The raw material mixture for the manufacture of light phosphate concrete is closest to that which is available, which includes wt.%: Aggregate 60-75, dispersed aluminum 3-6, phosphate binder 15-25, urea-formaldehyde resin 4-12 and water - the rest 2. However, this mixture has low strength. In addition, it is obtained on the basis of pure raw materials, which leads to the high cost of the material obtained. The purpose of the invention is to increase the strength and reduce the cost of concrete. This is achieved by the fact that the raw mix for manufactured and | light heat-resistant concrete, including phosphate binder, high-alumina aggregate, dispersed aluminum, additive and water, contains as a phosphate binder waste production of laurine peroxide of the general formula HsFOs-f-CnH n + iOj, as high-alumina aggregates - phosphate cakes and chromoaluminosilicate waste from the refining industry, as an additive - sodium silicofluoride and additionally clay and feldspar with the following ratio components, unst.%: Laurine peroxide production wastes (HaPOj + CnHjn + iOzJ1-50 Phosphate calcium silicate wastes 5-80 Chromoalum silicate wastes 1-40 Aluminum dispersed 0.01-10 Sodium silicofluoride 0.1 - 20 Clay 0.5 - 50 373C Field Itat0.1- 20 WaterOther The distinctive feature of the proposed i mixture is that phosphate-calcium silicate and chromium aluminum-silicate wastes from the oil refining industry mixed with mineral filler (clay, feldspar) are used as the high-alumina material, and binder - waste production peroxide Lauria (NzROz + € 112 562). Included in the phosphate-containing waste fatty acids increase the viscosity of the mass at the time of gas release, which leads to the formation of a stable foam mass and better structuring of the system, ensuring the strength of the material obtained. In addition, foamed materials obtained on the basis of the proposed raw material mixture retain their initial strength up to 1000 ° C, without undergoing significant changes. The isothermal holding of the material obtained at 95 ° –1000 ° C informs it of additional strength and water resistance. Example 1. To obtain a foam material, the powder and acid portions of the raw mix are separately prepared. To prepare the powder composition, 20% feldspar, 1% sodium fluorosilicate and 14% clay, pre-crushed to a grain size of 0.1 - 0.5 mm, are added to 20% phosphate-calcium-silicate waste, which has been cleared of large inclusions. To this mixture is added 10% chromoalus 11osilicate 1a. 1x waste and 0.1% dispersed aluminum. The resulting components are thoroughly mixed until a homogeneous mass is formed. The acidic part of the mixture is prepared by mixing in a glass container 20% waste of laurine peroxide (EZRO +) with 25% water. In this case, the acid solution is heated to 40-50 ° C. In the warm solution of the acid, the previously prepared powder composition is poured, quickly re; stir for 2-3 minutes until a uniform foam mass is formed. The resulting mixture is poured into a mold with a water-absorbing pad and is allowed to stabilize the foamed mass for 20-25 hours, after which it is dried at 100 ° C for 6-10 hours. The obtained samples are burned at 950-980 ° C for 10 hours. e p 2. The raw material mixture for producing foamed material is prepared according to the technology described in example 1, according to the component's yoga, pet.%: Phosphate calcium, strong waste 28 Chromoaluminosilicate waste 2 Clay 20 Laurine peroxide production waste (HaPOj-fCnHzn + iOj16) Distilled waste (161). : Polev oh spar5 Sodium silicofluoride5 Voda24 The samples obtained are fired at 85,000 ° C for 8-10 hours Physical mechanics and thermophysical properties of the material obtained are compared to the known in Table 1. Table 1 Known light phosphate concrete Proposed phosphate lite: composition 1 composition 2 How can be seen from the above data, the material obtained from the proposed mixture is superior in physico-mechanical parameters to materials from a known raw mixture, not inferior to them in thermophysical indicators, at the same time it has a psyushenny st ykostyu to thermal stress. The economic efficiency of the production of waste products in comparison with the purest products is given in Table No. 2. The consumption of the components of the mixture is taken based on the expenditure ratio of the proposed raw mix. The cost of waste production of laurine peroxide (HsfOj + CnH j + id) is equal to the cost of pure phosphoric acid HzRO4. Table Name of raw mixes. The cost of a mixture of the same weight, matenitsa, rub. rials Raw mix for making light phosphate concrete 143,30 Raw mix for making foamed aluminous cement 92,49 Raw mix 45,14 Claims of the invention Raw mix for making light heat-resistant concrete, including phosphate binder, high-grit cement, dispersible aluminum-aluminum, dispersant aluminum-to-aluminum-aluminum-gray-white-gray aluminum. in order to increase the strength and reduce the cost of concrete, it contains as a phosphate binder waste production of laurine peroxide of the general formula HsPOs + CnH n jdz As a high-alumina aggregate - phosphate-calcium, silicate and chromo-aluminosilicate wastes of the refining industry, as an additive - silica-smelting sodium and additionally clay and field mattress at the following ratio of components, wt.%: Laurine peroxide production waste (HjPOa + yr = 22%): Lauren peroxide production waste (HjPOa + ла:% - “50 Phosphate-containing silicate wastes 5-80 Chromium-aluminate wastes1-40 Dispersed aluminum0.0 - 10 Sodium fluorosilicate0.1 - 20 Clay .0.5-50 Feldspar0,1-20 WaterExtra Sources of information taken into account during the examination 1. vtorskoe certificate USSR № 408930, C 04 B 29/02, 28.04.1972. 2. Revolutionary certificate of the USSR No. 514793, C 04 B-29/02, C 04 B 15/02,1975 (prototype).