SU697437A1 - Concrete mixture - Google Patents

Description

D54) CONCRETE MIXTURE

t

The invention relates to building materials and can be used in the manufacture of concrete and reinforced concrete products with improved technological characteristics.

Concrete mixtures are known, including cement, mineral aggregate, water, and a hardening accelerator, which increases the strength of concrete in the early stages, the most common of which is calcium chloride 1,

However, the use of calcium chloride in concrete mixes simultaneously causes corrosion of reinforcement and metal forms.

A concrete mixture is known that includes cement, mineral aggregate, water, and a non-corrosive proteinaceous substance.

The disadvantage of such a concrete mix is a slight increase in the strength of concrete in the early stages.

The purpose of the invention is to increase the mechanical strength of concrete and prevent metal corrosion.

To achieve this goal, a concrete mix, including cement, mineral aggregate, water and a protein-containing additive, is known;

Mineral aggregate 79-86 Waste from the production of antibiotics. . (dry basis) 0.0002-0.002

WaterEverything

In terms of its composition, the dry matter of the production of antibiotics, the so-called mycelial masses, is a mixture of organic

and inorganic products and contains: proteins 30-55%, lipids 18-48%, nucleoprotic and nucleic acids 12-30%, polysaccharides 10-28%, polyphosphates 3-10%.

The additive is introduced into the concrete mix with the mixing water.

The invention has been tested under laboratory conditions using mycelial masses containing various amounts of

- proteins: monomycin, nesmycin and penicillin mycelium. All additives make it possible to obtain more pr, full-time and dense TtaK concretes during the heat and moisture treatment of concrete products, as well as with

normal hardening conditions. Below are the data obtained dl, concretes containing waste monomitsina. Three concrete mixtures of the composition given in Table 1 were prepared for testing. Samples of 10x10x10 cm were made from the above mixtures, some of which are subjected to heat and moisture treatment at the 2 + 3 + 4 + 3 mode, and some are left for 28 day normal hardening . Table 2 summarizes the results of compressive testing of samples and the value of their bulk density.

Waste production

monomitsina (on dry

substance) 0.0002

Water3,9998

0,0020, 0,0010 5,9985,399

The table Protein-containing additive (mycelial masses) does not require a change in the technology of manufacturing concrete products, increases the strength of concrete and makes it possible to save up to 15% of cement. With a maximum use of protein-containing waste production of antibiotics as an additive to concrete mixes, a total economic effect of over a million can be obtained. .rub year , Use. This additive in construction will help solve the problem of disposal of waste production of antibiotics. Table 1