UA126483U - A METHOD OF MANUFACTURING A MODIFIER FOR ANTI-LOCKING STRUCTURES - Google Patents

Abstract

A method of manufacturing a modifier for anti-slip structures involves mixing a dispersed mineral additive - ash removal of heat power plants with a plasticizer. Sulfate soap is used as a plasticizer. The modifier components are mixed in this ratio, wt. %: ash removal of heat power plants 97-99; sulfate soap - 1-3%.

Description

The utility model belongs to the building materials industry and can be used for the production of anti-slip concrete and reinforced concrete structures.

A known method of manufacturing a multifunctional modifier for concrete, which includes mixing a dispersed mineral additive with a plasticizer |L.Y. Dvorkin, N.V. Dvorkin

Concretes and mortars.: Textbook. - K.: Basis. 2008. P.52 531.

However, the disadvantage of this method is the low plasticizing ability of the multifunctional modifier, the water consumption of concrete mixtures when using it is reduced by only 10-15 volumes.

A known method of manufacturing a modifier for concrete, which includes mixing a dispersed mineral additive - meta kaolin with a naphthalene-formaldehyde plasticizer

I.Y. Dvorkin, N.V. Lushnikova, R.F. Runova, V.B. Troyan Metakaolin in construction mortars and concretes.: Monograph K.: KNUBIA, 2007. P.30-311.

However, the disadvantage of this method is also the low plasticizing ability of the modifier, the water consumption of concrete mixtures when using it is reduced by only 10-15 95.

The closest analogue to the proposed method is the method of manufacturing a multifunctional modifier for concrete | Patent of Ukraine Mo 51921 "Method of manufacturing a multifunctional modifier for concrete" Samkovsky L.V., Dvorkin L.Y. С0О4В 28/14 (2006.01), Bull. Mo 15, 2010), which includes the mixing of a dispersed mineral additive with a plasticizer, in which ash from thermal power plants is used as a dispersed mineral additive, and technical lignosulfonate is used as a plasticizer in this ratio, wt. Fo:. fly ash of thermal power plants 98 99 Fo, technical lignosulfonate 1-2 95.

However, the known method does not provide sufficient compressive strength of gold-cement compositions, which reduces the strength of anti-slide engineering structures as a whole and ultimately does not ensure the reliability of anti-slide measures.

The useful model is based on the task of producing a modifier for anti-slide structures, in which, due to increasing the plasticizing ability of the modifier for the production of anti-slide concrete and reinforced concrete structures and thus reducing the water consumption of concrete mixtures when using it, while simultaneously achieving maximum compressive strength to ensure the reliability of anti-slide structures buildings

З The task is solved by the fact that the method of manufacturing a modifier for antislide structures (concrete and reinforced concrete structures), which includes mixing a dispersed mineral additive with a plasticizer, as a dispersed mineral additive, ash from thermal power plants is used, according to a useful model, sulfate soap is used as a plasticizer, components the modifier is mixed in this ratio, wt. 9o: ash removed from thermal power plants 97-99; sulfate soap 1-3.

A study of the influence of the plasticizer content on the physical and mechanical properties of the composition used for the production of anti-slide structures was conducted. Portland cement, arable clinker of PJSC "Volyncement" and fly ash were used for research

Ladyzhynska TPP and sulfate soap - waste from production of the Zhydachiv pulp and paper plant. Research results show that reducing the content of the modifier from 195 to 0.595 accelerates the onset of hardening and early strength (2 days), however, at the age of 28 days, cement stone with an additive content of 1 95 by mass is characterized by greater strength by almost 10 95 compared to cement stone a stone obtained on the basis of a composition into which 0.595 by mass of plasticizer (sulfate soap) was introduced. However, increasing the content of sulfate soap in the modifier over C 95 does not lead to a noticeable further increase in the plasticizing ability of the modifier and reduces the strength of concrete with such a modifier.

Studies were conducted to determine the optimal content of the modifier in the composition used for the production of anti-slide structures. The results of determining the compressive strength of cement stone obtained using a composition of different composition are shown in the table.

Table

Compressive strength of cement stone obtained using a composition of different composition modifier), 95 7770. | gdobi | 7 days 28 days// beat 11111101 Y111110111115 | 72 11109010 711162 | 18? | 266040

Table

Compressive strength of cement stone obtained using a composition of different composition

The composition of the clinker composition: Compressive strength (MPa) at different times of hardening, modifier), 95 7770. | days 28 days 20:80 70 | 51 30:70 77570 | 71205 100:0 0. | 1772 | yy | dm

The obtained data proved that the use of a modifier without cement content is characterized by a slow kinetics of strength gain, so, only on the 28th day of normal hardening conditions (Г-20-2 7С), the strength of the artificial stone is 17.2 MPa, while other compositions based on the modifier and the strength of cement is almost three times higher. It should also be noted that the system based on the modifier and Portland cement clinker in the ratio of 30:70 is characterized by slightly higher strength indicators. Therefore, such a composition can be recommended for use in the implementation of engineering anti-slide measures.

Claims (1)

USEFUL MODEL FORMULA The method of making a modifier for anti-slide structures, which includes mixing a dispersed mineral additive - fly ash of thermal power plants with a plasticizer, which differs in that sulfate soap is used as a plasticizer, and the components of the modifier are mixed in such a ratio, wt. 9o: ash removed from thermal power plants 97-99; sulfate soap - 1-3.