RU2336242C1 - Clay-phosphate material - Google Patents

Abstract

FIELD: construction.

SUBSTANCE: clay-phosphate material contains sandy clay, ferriferous wastage from metal production with sieve residue №008 containing Fe(II) oxide 7-11 wt %, orthophosphoric acid with specific density of 1.24-1.25 g/cm³, wastage from rubber-processing industry in the form of rubber crumb with fraction sizes of 0.06-2.00 mm, with following mixture ratio, wt %: sandy clay - 65-70, specified ferriferous wastage - 4-8, specified rubber-processing wastage - 5-7, orthophosphoric acid with specific density of 1.24-1.25 g/cm³ - the rest.

EFFECT: lowering of clay-phosphate material heat conductance with water resistance retention.

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Description

The invention relates to the field of building materials and can be used in the manufacture of building blocks.

Known materials based on clay, loam, phosphoric acid and additives - oxides of d-metals (Latutova MN, Svatovskaya LB, Chibisov NP and others. Physico-chemical features of hardening GLINFs and ALUMPHs. - L. , Stroyizdat, "Cement" No. 10, 1990, S.11-12). These known aluminophosphate materials harden in air and are water resistant.

Closest to the technical nature of the claimed technical solution is selected for the prototype aluminophosphate material of the following composition (wt.%):

loam 71-74 iron waste metallurgical production with residue on sieve No. 008, containing Fe (II) oxide 7-11 wt.% 5-7 orthophosphoric acid density 1.24-1.25 g / cm ³ rest

(Patent RU No. 2148563, С04В 28/34, 05/10/2000).

The disadvantage of this aluminophosphate material is not sufficiently low thermal conductivity.

The objective of the invention is the creation of a new clay phosphate material with reduced thermal conductivity while maintaining water resistance.

The solution to this problem is achieved by the fact that the clay-phosphate material containing loam, iron-containing metallurgical waste with a residue on sieve No. 008, containing Fe (II) oxide 7-11 wt.%, Phosphoric acid with a density of 1.24-1.25 g / cm ³ , further comprises rubber industry waste in the form of crumb rubber with fraction sizes of 0.06-2.00 mm, with the following ratio of components, wt.%:

loam 65-70 iron waste metallurgical production with residue on sieve No. 008, containing Fe (II) oxide 7-11 wt.% 4-8 specified rubber industry waste 5-7 phosphoric acid density 1.24-1.25 g / cm ³ rest

New in comparison with the prototype to reduce the thermal conductivity of the material is the use of rubber industry waste in the form of crumb rubber with fractions of 0.06-2.00 mm.

Material production

A mixture consisting of loam, iron-containing metallurgical waste with a residue on sieve No. 008 containing Fe (II) oxide of 7-11 wt.%, And rubber industry waste in the form of crumb rubber with fractions of 0.06-2.00 mm, mix and shut with phosphoric acid with a density of 1.24-1.25 g / cm ³ . The following materials are used: iron-containing waste of the following basic composition, wt.%: FeO - 96; CuO - 0.1; Al ₂ O ₃ - 0.4; Mo ₃ O ₄ - 0.1; NiO - 0.2; SiO ₂ 2.0; Cr ₂ O ₃ - 0.3; C - 0.3; loam; phosphoric acid with a density of 1.24-1.25 g / cm ³ (GOST 65-52-80), the waste of the rubber industry in the form of rubber crumb with fraction sizes of 0.06-2.00 mm.

After hardening in air, a water-resistant clay phosphate material with reduced thermal conductivity is obtained, which can be used in construction.

To determine the coarse modulus, a fine fraction of iron-containing metallurgical waste with a particle size of less than 5 mm and rubber industry waste in the form of crumb rubber with fraction sizes less than 2.5 mm were screened on a standard set of sieves according to GOST 8735-88.

Strength of materials is determined in accordance with GOST 10180.

The coefficient of thermal conductivity is determined according to GOST 7076-87.

Examples of compositions and test results are presented in the table.

Analysis of the table shows that the additional use of rubber industry waste in the form of rubber crumb with fractions of 0.06-2.00 mm fractions makes it possible to reduce the thermal conductivity of the clay phosphate material compared to the prototype.

Table The composition of the material, wt.% Compressive strength, MPa, water saturation Thermal conductivity coefficient λ, W / (m / K) Loam 65 Iron-containing waste of metallurgical production with a residue on sieve No. 008 containing Fe (II) oxide of 7-11 wt.% four 9.6 0.30 Rubber industry waste in the form of crumb rubber with fraction sizes of 0.06 mm 7 Phosphoric acid with a density of 1.24 g / cm ³ rest Loam 67 Iron-containing waste of metallurgical production with a residue on sieve No. 008 containing Fe (II) oxide of 7-11 wt.% 6 9.6 0.31 Rubber industry waste in the form of crumb rubber with a particle size of 1.00 mm 6 Phosphoric acid with a density of 1.245 g / cm ³ rest Loam 70 Iron-containing waste from metallurgical production with a residue on sieve No. 008, containing Fe (II) oxide 7-11 wt.% 8 9.8 0.32 Rubber industry waste in the form of crumb rubber with a particle size of 2.00 mm 5 Phosphoric acid with a density of 1.25 g / cm ³ rest Loam 71-74 Iron-containing waste of metallurgical production with a residue on sieve No. 008 containing Fe (II) oxide of 7-11 wt.% 5-7 9.0 0.4 Phosphoric acid with a density of 1.24-1.25 g / cm ³ rest

Claims (1)

A clay-phosphate material containing loam, iron-containing metallurgical waste with a residue on sieve No. 008, containing Fe (II) oxide 7-11 wt.%, Phosphoric acid with a density of 1.24-1.25 g / cm ³ , characterized in that it contains rubber industry waste in the form of crumb rubber with fraction sizes of 0.06-2.00 mm in the following ratio of components, wt.%: loam 65-70 iron-containing waste of metallurgical production with residue on sieve No. 008, containing Fe (II) oxide 7-11 wt.% 4-8 rubber industry waste in the form of rubber crumbs with fraction sizes of 0.06-2.00 mm 5-7 orthophosphoric acid density 1.24-1.25 g / cm ³ rest