SU874697A1 - Method of producing concrete mix - Google Patents

Description

The invention relates to the technology of building production, in particular to the technology of manufacturing concrete products, and may find application in the preparation of concrete mixtures on heavy aggregates. A known method of preparing a concrete mixture consists in introducing solders, water, and additive, and mixing them with tl. The closest to the invention, by technical nature and the achieved result, is a method for preparing a concrete mix, which includes the introduction of a fine and coarse aggregate of water, a shutter or a binder, additives and their mixing. 23 The disadvantage of known methods is the low strength of concrete. The purpose of the invention is to increase the strength of the network. The goal is achieved by the fact that, according to the method of priming a concrete mix, which includes mixing fine and coarse aggregate water, feed and additives, first an additive, coarse and fine aggregate is introduced into the water, mixed, the liquid phase is poured, and the resulting mixture injected into the ground and the water for mixing and the final blending is carried out. As an additive, for example, bottoms of higher fatty acids and synthetic fatty acids are used. Mixing the water-containing solution and the water-repellent additive with fine and coarse aggregate allows adsorbing clay and dust particles into the aggregate from the aggregate surface, and draining the water reduces the water demand of the concrete mixture, as a result of which the qualities of concrete products and their durability are increased. service. Example. Water and the additive are introduced into the concrete mixer, then the coarse and fine aggregate is loaded, the resulting mass is mixed. After draining the liquid phase, they are introduced into the trap and the water for mixing and mixed. The concrete mix is prepared from the calculation of concrete grade 200, kg: Peck 638 Crushed stone 1320 Portland cement (PC-500) 200 Additive KOSHK3,0.

7.40

KOVZhS 185 l. Water

The test results are presented in the table.

185

200

1320

638

1320

638,200

185

Thus, concrete products made by the proposed method have a higher degree of compaction and a higher strength of 25 compared to products prepared in a known manner.

The prepared concrete mixture has the required workability and reduced water demand: 30

Claims (2)

1.Geriberg O.A. Concrete and Concrete Products Technologists. M., stroiizdat, 1971, p. 143-147. 2. USSR Author's Certificate for Application No. 2761725, CL From 04 To 15/00, 1979.