RU2317962C1 - Clay phosphate material - Google Patents

Abstract

FIELD: manufacture of building materials and building blocks.

SUBSTANCE: proposed clay phosphate material contains loam, iron-containing waste of metallurgical process containing Fe (II) at residue on sieve No.008 of 7-11% and concentrated solution of orthophosphoric acid in used lubricant-and-coolant having density of 1.25-1.30 g/cm³ and containing the components at the following ratio, mass-%: orthophosphoric acid, 34-40; used lubricant-and-coolant, 60-66 at the following ratio of material components, mass-%: loam, 68-70; iron-containing waste, 6-8; the remainder being said solution.

EFFECT: slow setting terms at retained waterproofness.

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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. Physical and chemical characteristics of hardening of GLINFs and ALUMPHs. - L.: Stroyizdat, "Cement" No. 10, 1990, S.11-12) . These known aluminophosphate materials harden in air and are water resistant.

The closest in technical essence to the claimed technical solution is selected for the prototype aluminophosphate material of the following composition (wt.%):

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

(Patent RU No. 2148563, С 04 В 28/34, 05/10/2000).

The disadvantage of this aluminophosphate material is the rapid hardening in air.

The objective of the invention is the creation of a new clay phosphate material with a delayed setting time 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 containing oxide Fe (II) with a residue on sieve No. 008 of 7-11% and a solution of orthophosphoric acid, contains a solution of orthophosphoric acid in the spent cutting fluid, having a density of 1.25-1.30 g / cm ³ in the following ratio of components, wt.%:

loam 68-70 iron waste metallurgical production containing Fe (II) oxide with a sieve residue No. 008 of 7-11% 6-8 specified solution rest

New in comparison with the prototype is the use as a mixing liquid of a solution prepared by diluting concentrated phosphoric acid with a spent cutting fluid to a density of 1.25-1.30 g / cm ³ .

Material production

A mixture consisting of loam, iron-containing waste of metallurgical production containing Fe (II) oxide with a residue on sieve No. 008 of 7-11%, is mixed and closed with a solution with a density of 1.25-1.30 g / cm ³ , in the following ratio of components, wt.%:

concentrated phosphoric acid 34-40 used cutting fluid 60-66

The following materials are used: iron-containing waste of the main composition, wt.%: FeO - 96; CuO - 0.1; AlO 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; concentrated phosphoric acid GOST 65-52-80, diluted with spent cutting fluid, to obtain a density of 1.25-1.30 g / cm. Spent cutting fluid, contains, wt.%: Cu 0,0115-0,0118; Zn 0.0231-0.0235; Pb 0.0023-0.0027; Ni 0.029-0.031; Mn 0.0060-0.0062; Cd 0.0006-0.0009; Co 0,0003-0,0004; Cr 0.0029-0.0031; petroleum products 73.0-75.0; FeO - the rest.

After hardening in air, a water-resistant clay phosphate material with a delayed setting time is obtained, which can be used in construction.

To determine the modulus of fineness, a fine fraction of iron-containing waste from metallurgical production with particle sizes less than 5 mm was screened on a standard set of sieves according to GOST 8735-88.

The strength of the materials was determined according to GOST 10180.

The setting time of clay phosphate materials was determined according to GOST 310.3.78.

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

The analysis of the table shows that the use of concentrated orthophosphoric acid diluted with used cutting fluid containing, wt%: Cu 0.0115-0.0118; Zn 0.0231-0.0235; Pb 0.0023-0.0027; Ni 0.029-0.031; Mn 0.0060-0.0062; Cd 0.0006-0.0009; Co 0,0003-0,0004; Cr 0.0029-0.0031; petroleum products 73.0-75.0; FeO - the rest, makes it possible to adjust the setting time of the aluminophosphate material.

Table No. p. Composition, wt.% Setting time, hour-min. Compressive strength, MPa, Loam Iron waste Concentrated phosphoric acid - 40 wt.% And spent cutting fluid - 60 wt.%, Density 1.26 g / cm ³ Phosphoric acid, (aqueous solution), density, 1.24-1.25 g / cm ³ Start end after 2 daily water saturation one 2 3 four 5 6 7 8 one 68 8 24 - 0-35 0-45 10.5 2 69 7 24 - 0-40 2-20 10.9 3 70 6 24 - 0-50 2-45 10.3 four 71-74 5-7 - 24 0-15 0-30 9.0

Claims (1)

A clay-phosphate material containing loam, iron-containing metallurgical waste containing oxide Fe (II) with a residue on sieve No. 008 of 7-11% and a solution of phosphoric acid, characterized in that it contains a solution of concentrated phosphoric acid in a spent cutting fluid, having density 1.25-1.30 g / cm ³ and containing, wt.%: the specified acid is 34-40, the specified waste liquid is 60-66, in the following ratio of the components of the material, wt.%: Loam 68-70 Specified Iron Waste 6-8 Specified solution Rest