SU730647A1 - Raw mixture for silicate article manufacturing - Google Patents

Description

The invention relates to the building materials industry and can be used in the manufacture of silicate products, for example, silicate bricks. Raw mixes for the manufacture of silicate bricks are known, including limestone in the holding and sand 1. The disadvantage of these mixtures is the high demands on the activity of the lime in the binding. A raw material mixture for the manufacture of silicate products11 is also known, including,%: limestone, 14-17.5, silica-containing aggregate, 0 and addition in the form of ground expanded perlite sand 2. The disadvantage of this mixture is the use of expanded perlite sand, which requires high costs for manufacture, and relatively low strength of silica brick., The purpose of the invention is to increase the strength of the product. The goal is achieved by the fact that the raw material mixture for producing foams of silicate products, including calcareous, silica-containing aggregate and an additive, contains as an additive ground mineral production waste at the following ratio of components, wt.%:: Calcareous mineral, 6 - 10 Ground mineral waste productions 3-15 Silica-containing aggregate The remaining Example. A silicate raw material mixture is prepared from pre-mixed sandstone with a particle size of less than 1 mm and milled cotton wool from ground production with a specific surface area of 3800, ground lime with an abundance of 48% and water. After hashing lime and dried mass, the brick is molded by pressing under a pressure of 15 MPa. Then the molded Kirgog is put in an autoclave according to the existing technological conditions. Compositions - mixtures and strength properties of samples of them are presented in the table.

Components, %

Composition, N I

Lime Sandstone

Ground Waste Mineral Ovat Production

730647

Compressive strength, MPa

ten

12.1

87

Lime10

Sandstone80

Mineral wool waste

production10

Lime10

Sandstone75

Ground waste; c.1 mineral wool production15

The compositions proposed raw mixes. provide the required frost resistance of at least 25 cycles and, increase the strength of silicate bricks by 50% compared with the known composition of silicate bricks, the tensile strength of which, when manufactured from the same components with the addition of ground perlite sand, was 10 MPa.

invention formula

Raw material mixture for making silicate-. pieces, including calcareous to living, silica-containing aggregate and an additive, characterized in that, in order to increase the strength of the products,

15.0

10.8

contains as an additive ground waste mineral wool production Shch5 and the following ratio of components, wt.%: Lime in zhtddey

6-10 Ground waste mineral 3-15 cotton production Silica-containing

The rest is a placeholder;

Sources of information 40 are taken into account tfi expertise

1. Osin B.V. Negashen lime. Promastroyizdat, 1954, p. 176-181.

2. USSR author's certificate No. 485088, 45 cl. C 04 B 13/12, 17.04,73 (prototype).

Claims (2)

Claim Raw mix for the manufacture of silicate products, including lime binder, silica aggregate and additive, characterized in that, in order to increase the strength of the products, it 45 contains ground mineral waste products as an additive in the following ratio of components, wt.%: Lime binder 6-10 Mineral wool milled waste 3 - 15 Silica Aggregate / Other Sources of information, • taken into account during the examination 1. Osin B. Century. Quicklime. Promyutroyizdat, 1954, p. 176-181. 2. USSR author's certificate No. 485088, cl. C 04 V 13/12, 04.17.73 (prototype).