SU1203060A1 - Concrete mixture for producing concrete articles - Google Patents

Abstract

1. Concrete mix, including Portland cement, aggregate,: sulphite-yeast brew, modifying additive and water, which is: so that, in order to increase the mobility of the concrete mix, the strength of concrete, the reduction of air involvement and reduction of heat and moisture treatment, it as a modifying additive fusel oil or carboline in the following ratio of components, May.%: Portland-cement 13-22 Filler Sulfite yeast brew (on a dry basis) Fusel oil or carbolineum Water 70- 80 0.1-0.22 0, 001-0.01 Else 2. A method of manufacturing concrete products, including mixing portland cement, filling with a portion of mixing water, introducing a sulphite-yeast brew, a modifying additive and the rest of the mixing water, molding the products and their heat and moisture treatment, characterized in that In order to increase the mobility of the concrete mixture, the strength of the concrete, reduce the air entrapment and reduce the heat and moisture treatment, fusel oil or carbolineum is introduced from 45-55% of the total amount of mixing water, sul Fitnu-yeast mash-.ostalnoy part with mixing water and teplovlazh- nostnuyu treatment is performed under conditions fixing original volume products. § (L in about o: o o

Description

t

The invention relates to the construction, in particular to the composition of concrete mixtures, and can be used in the manufacture of concrete products.

The purpose of the invention is to increase the mobility of the concrete mix and the strength of the concrete from it, reduce air entrainment during its preparation and reduce the heat and moisture treatment.

The concrete mixture of the composition according to the invention is prepared in the following manner.

First, mix the required amount of cement, natural quartz sand and granite rubble. Then, without stopping the stirring, fusel or anthracene oil with 45-55% by weight of mixing water of its total required amount is introduced into the mixture, the required amount of sulphite-yeast is introduced.

Portland cement M-500 Portland cement M-400

Tseben granite (ur shares 5-20 mm

Natural quartz sand

SDB (calculated on dry matter)

Carbolineum fusel oil Polyethyleneimine Water

030602

mash dissolved in the remaining mixing water. The finished concrete mixture is placed in metal molds, closed with lids, which are attached to the molds with retainers to ensure the constant volume of the concrete mixture in the course of its heat and moisture treatment.

The moisture treatment of the molded products according to the proposed method is carried out with water vapor without their prior exposure at a temperature rise of 1 hour, isothermal exposure at 80 ± 5 ° С for 5-6 hours, and cooling for 1 hour.

Specific compositions of the concrete mix are given in Table 1.

Determine strength and mobility

20 concrete mix according to GOST.

The method of forming products from the mixture, the mode of heat and moisture treatment, as well as the physical and mechanical properties of the mixture are given in Table. 2

,Table

22.0

21.50

13.00 53.30

26.70 0.12

0.002 6.878

70.00 0.10

0.001

7,899

47.00

23,500 0.20

0,007

7,793

Portland cement. Portland cement M-400

Crushed stone granite fraction 5-20 mm

Natural quartz sand i

SDB (calculated on dry matter)

Fusel oil

21,5021,50 21,5018,2018,20

47,0047,00 47,0057,2057,20

23.5023.50 23.5017.0017.00

0,200,20 0,200,1750,100

Characteristic

Indicators for compositions

The conditions for forming the products (with a fixed volume

or not), Yes Yes Yes Heat-moisture mode 0 + 1 О + К processing, h. -t-S-H + 5-t-l Air entraining in the process of preparing and molding concrete

mixes, Z 3,1 2,7 2,3 Mobility of concrete mix, cm 22 20 20 Frost resistance of concrete products,

cycl of 350 300 250

Strength concrete products with

Yes yes no yes no no

04-1 + OT-C-O-t-U 0 + 1 + 2 + 3 + 2 + 3 + + 6 + 1 + 6 + 1 + 6 + 1 + 6 + 1 + 6 + 2 + 6 + 2

2.5 9, A 2.5 6.5 5.8 5, A

21 16 21 17 P 8

300 .200 ROU 200 150 150

compression, MPa 55.5 35.9 53.6 53.0 36.4 38.0 43.3 42.3 41.9

VNINPI Order 8382/29 Circulation 604 Subscription Branch POP Patent, Uzhgorod, Proektna St., 4

Continue tlbl,

table 2

Yes yes no yes no no

04-1 + OT-C-O-t-U 0 + 1 + 2 + 3 + 2 + 3 + + 6 + 1 + 6 + 1 + 6 + 1 + 6 + 1 + 6 + 2 + 6 + 2

2.5 9, A 2.5 6.5 5.8 5, A

21 16 21 17 P 8

300 .200 ROU 200 150 150

Claims (2)

1. Concrete mixture, including Portland cement, aggregate, / sulphite-yeast mash, modifying the additive and water, t and l and ch: I am with the fact that, in order to increase the mobility of the concrete mixture, the strength of concrete, reduce'-air intake and reduce heat *, moisture treatment, it as a modifying additive contains fusel oil or carboline in the following ratio, May.%: Portland - __ cement 13-22 Filler Sulphite yeast mash (dry matter) Fusel oil or carbolineum Water 70-80 0.1-0.22 0.001-0.01 Rest 2. A method of manufacturing concrete products, including mixing Portland cement, aggregate with part of the mixing water, introducing sulphite-yeast mash, modifying additives and the rest of the mixing water, molding the products and their heat and moisture treatment, characterized in that, in order to increase the mobility of the concrete mixture, concrete strength, reducing air entrainment and reducing the regime of heat and moisture treatment, fusel oil or carbolineum is introduced from 45–55% of the total amount of mixing water, sulfite-yeast sconce Ku with the remainder of the mixing water and teplovlazh- nostnuyu treatment is performed under conditions of fixing the original volume products.