Raw material mixture for obtaining artificial rock

FIELD: chemistry.

SUBSTANCE: raw material mixture for obtaining artificial rock contains, wt %: Portland cement 26-30; quartz sand 47.3-55.85; water 16-20; fibrous metalloceramics 2.0-2.5; technical lignosulfonate LST 0.15-0.2.

EFFECT: increased strength.

1 tbl

 

The invention relates to the construction materials industry.

Famous raw mix for the production of artificial rocks, including, wt.%: cement (Portland cement) 25-30; flour and sand on the basis of calcium carbonate to 55; metal oxides (iron, chromium, lead, mercury) 2-10; hydroxides of metals (iron, chromium, lead, mercury) 2-12; calcium silicates 2-3; silicides carbon (silicon carbide) of 0.1 to 0.6; fluorine-silicate 6; sulfides of iron and copper 0,4-0,8; oxalic acid 0.3 to 0.5; water 10-23 [1].

The objective of the invention is to increase the strength of the artificial rocks are derived from the raw mix.

The technical result is achieved by the fact that the raw mix for the production of artificial rocks, including Portland cement, sand-based calcium carbonate, water, further comprises a fibrous cermets and technical lignosulphonate lsls in the following ratio, wt.%: Portland 26-30; quartz sand 47,3-55,85; water 16-20; fibrous ceramics 2.0 to 2.5; technical lignosulphonate LST of 0.15-0.2.

Fibrous metal based ceramic material consisting of pieces of thin metal fibers in the form of a wire with a diameter of not more than 50-70 microns and a length of 3-10 mm

The composition of the raw mix for artificial rocks are given in the table.

ComponentsComposition, wt.%
12
Portland cement (500 M)2630
Fine quartz sand55,8547,3
Water1620
Fibrous metal22,5
Technical lignosulphonate LST0,150,2

Prepare, dispense and mix the raw materials. Cooked with a mixture of metal fill shapes, maintain the mixture in the form before hardening at a temperature of 20-25°C, and then the product is extracted from forms. The compressive strength of artificial material obtained from a raw mixture, at the age of 28 days. will be ~12 MPa.

The source of information

1. Patent Poland No. 268011, C04B, 1990.

Raw mix for the production of artificial rocks, including Portland cement, sand-based calcium carbonate, water, characterized in that it further comprises fibrous cermets and technical lignosulphonate LST paragraph and the following ratio of components, wt.%: Portland 26-30; quartz sand 47,3-55,85; water 16-20; fibrous ceramics 2.0 to 2.5; technical lignosulphonate LST of 0.15-0.2.



 

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