Concrete mixture

FIELD: chemistry.

SUBSTANCE: concrete mixture contains, wt %: portland cement 26.0-28.0; ash-slag filler 56.55-60.9; sodium ethyl silicate 1.0-1.4; polyethylene fibre cut into 5-10 mm pieces 0.05-0.1; water 12.0-14.0.

EFFECT: high frost resistance of concrete.

1 tbl

 

The invention relates to the construction materials industry, in particular, to the manufacture of concrete building blocks.

Famous concrete mixture containing, by weight.h.: Portland 1,0; saleslady filler 3,6-9,7; crumb polyethylene with a particle size up to 10 mm 0,024-0,009; water 0,6-1,1 [1].

The objective of the invention is to increase the frost resistance of concrete.

The technical result is achieved by the fact that the concrete mix containing Portland cement, saleslady filler, water, additionally includes ethylsilicate sodium and cut into segments 5-10 mm plastic fiber in the following ratio, wt.%: Portland 26,0-28,0; saleslady filler 56,55-60,9; ethylsilicate sodium 1,0-1,4; cut into segments of 5-10 mm plastic fiber 0,05-0,1; water 12,0-14,0.

The composition of concrete mixtures are given in the table.

For the preparation of concrete mixes prepare, dispense and mix the raw materials. The resulting concrete mixture is placed in a metal (pre-lubricated with machine oil) forms and allowed to cure. Then the product is extracted from forms and transported to the finished goods warehouse.

The source of information

1. Patent No. 2083523 RF, C04B 28/04, 1997.

Concrete mix containing Portland cement, saleslady filler, water, different is connected with the fact, which further includes ethylsilicate sodium and cut into segments 5-10 mm plastic fiber in the following ratio, wt.%: Portland 26,0-28,0; saleslady filler 56,55-60,9; ethylsilicate sodium 1,0-1,4; cut into segments of 5-10 mm plastic fiber 0,05-0,1; water 12,0-14,0.



 

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Concrete mix // 2536893

FIELD: construction.

SUBSTANCE: concrete mix includes Portland cement, crushed stone with particle size of 5-10, sand, water, a complex expansion agent containing alumina cement and crushed gypsum stone. Additionally, the complex expansion agent includes Glenium-51 superplasticising agent and aluminium powder at the following component ratio, wt %: Portland cement 17-21, granite macadam with particle size of 5-10 mm 31-33, sand of two fractions with particle size of 0.16-0.63 mm and 1.25-5 mm with fineness modulus of 2.7 31-37, complex expansion agent 3.3-6.6, and water is the rest. The complex expansion agent contains the following components, wt %: alumina cement with Al2O3 content of at least 35 wt % 69-72, crushed gypsum stone with SO3 content of at least 42 wt % 22-24, Glenium-51 superplasticising agent 3.2-7.9, and aluminium powder 0.8-1.1.

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9 tbl

FIELD: construction.

SUBSTANCE: invention relates to erection of cast-in-situ structures in difficult-to-access areas, and namely to cast concrete mixtures for cast-in-situ concreting of building structures. A cast-in-situ concreting method of a stationary sea ice-resistant platform involves preparation of concrete mix by mixing of dry components: a binding agent - Portland-slag cement, quartz sand, granite crushed stone with fraction of 5-20 mm, fine crushed mineral filler - MP-1 powder, with water and additives - a plasticising agent based on polycarboxylates - Muraplast FK-63 and hardening retarder - Centrament Retard 390, till concrete mix of cast consistency with cone spread of 50-70 cm is obtained, and with delamination of not more than 0.4% and with preservation capacity of at least 3 hours, supply of concrete mix to a framework with a concrete pump at flow rate of 2500-3000 l/h, and hardening is performed under normal conditions during 28-60 days, at the following component ratio, wt %: Portland-slag cement 13.3-16.9, quartz sand 42.4-42.6, the above said crushed stone 25.3-27.9, mineral powder MP-1 6.6-6.8, the above said plasticising agent 0.1-0.2, the above hardening retarder 0.07-0.08, and water is the rest.

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4 tbl

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FIELD: construction.

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FIELD: chemistry.

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1 tbl

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1 tbl

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4 cl, 1 tbl, 3 dwg

FIELD: construction.

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2 cl, 1 tbl, 1 ex

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FIELD: mining.

SUBSTANCE: stowing composition comprising portland cement, plastifying agent, fine-grained filler - sand and water, additionally comprises as a binder the milled tailings of wet magnetic separation of ferrous quartzites with an average particle size of 2.071 microns, as a plastifying agent - superplasticiser SP-1, and the sand with an average particle size of 62.26 microns with the following ratio of components, wt %; the said cement - 13.48; the said sand - 56.43; the said wastes - 2.70; superplasticiser SP-1 - 0.138; water - the rest.

EFFECT: decrease in cement consumption, and increase in the strength of the stowing composition, use of sand with a lower fineness modulus.

1 ex, 2 tbl

FIELD: construction.

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2 cl, 1 tbl, 1 ex

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2 tbl

Concrete mix // 2536893

FIELD: construction.

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9 tbl

FIELD: construction.

SUBSTANCE: invention relates to erection of cast-in-situ structures in difficult-to-access areas, and namely to cast concrete mixtures for cast-in-situ concreting of building structures. A cast-in-situ concreting method of a stationary sea ice-resistant platform involves preparation of concrete mix by mixing of dry components: a binding agent - Portland-slag cement, quartz sand, granite crushed stone with fraction of 5-20 mm, fine crushed mineral filler - MP-1 powder, with water and additives - a plasticising agent based on polycarboxylates - Muraplast FK-63 and hardening retarder - Centrament Retard 390, till concrete mix of cast consistency with cone spread of 50-70 cm is obtained, and with delamination of not more than 0.4% and with preservation capacity of at least 3 hours, supply of concrete mix to a framework with a concrete pump at flow rate of 2500-3000 l/h, and hardening is performed under normal conditions during 28-60 days, at the following component ratio, wt %: Portland-slag cement 13.3-16.9, quartz sand 42.4-42.6, the above said crushed stone 25.3-27.9, mineral powder MP-1 6.6-6.8, the above said plasticising agent 0.1-0.2, the above hardening retarder 0.07-0.08, and water is the rest.

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4 tbl

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2 tbl

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5 tbl

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9 tbl

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EFFECT: increased strength.

1 tbl

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EFFECT: increasing strength properties of a polymer binding agent and polymer concretes on its basis.

2 tbl

FIELD: chemistry.

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1 ex, 1 tbl

FIELD: chemistry.

SUBSTANCE: invention relates to production of artificial materials which imitate natural materials. The crude mixture for imitation of natural stone contains, wt %: blast-furnace slag ground and sieved through sieve N014 15.0-20.0; coal dust 5.0-7.0; portland cement 21.0-25.0; superplasticiser S-3 1.0-1.3, ferruginous quartzite ground and sieved through sieve N5 46.7-58.0, with water-to-cement ratio of 0.5-0.6.

EFFECT: high strength.

1 tbl

FIELD: chemistry.

SUBSTANCE: invention relates to building equipment and can be applied in the production of concrete products for the improvement of their basic physical-chemical properties. The complex additive for concrete mixtures and mortars contains a superplasticiser C-3, a mixture of Iceland spar, aluminium sulphate and fine-grained pyrite in a ratio, wt %: superplasticiser C3 10-30, Iceland spar 50-80, aluminium sulphate 5-7.5, fine-grained pyrite 5-7.51.

EFFECT: improvement of basic properties of concrete: increase of strength and reduction of moisture permeability.

1 dwg, 1 tbl

FIELD: building materials, in particular concrete additives (plasticizer).

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EFFECT: concrete mixtures with controlled flow characteristic and concrete curing rate.

2 cl, 4 ex

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