SU1377320A1 - Method of preparing color organic-mineral mixture for road pavings - Google Patents

Abstract

The invention relates to road building materials and can be used in the construction of color road coatings. The purpose of the invention is to increase the crack resistance and water resistance of road surfaces. A colored organic mineral pavement mixture is prepared by mixing bottoms of synthetic fatty acids with a mixture of sand, mineral powder, lime and pigment at 160-170 ° C. Cold black crushed stone is then introduced into the mixture. Compressive strength at 0 ° С 82.0- 89.1 MPa, coefficient of water resistance 0.99-1.0. 1 tab. with

Description

The invention relates to road building materials and can be used in the construction of colored road surfaces.

The purpose of the invention is to increase the crack resistance and water resistance of road surfaces.

Sand, mineral powder - dblomite flour, slaked lime and pigment are mixed in a ratio of 79: 17: 2:: 2 wt.% Without heating. The mixture is heated to 160-170 ° C and mixed with molten bottoms of synthetic fatty acids in a ratio of 93: 7 wt.%. In the resulting composition is introduced colds {black gravel in a ratio of 40-60: 40-60 wt.%. The bottoms of synthetic fatty acids (COSFA) are used in a known manner.

Preliminary preparation of a mixture of lime, pigment, sand, and mineral powder, heating it before the introduction of organic tinting causes a rapid and uniform distribution of pigment and lime without the formation of pigment and salts of KOSHK when modifying the mixture of organic in tasting. The temperature of 160-170 ° C is necessary for the reaction to proceed between the molten KOSHK and lime, which results in uniform structuring of the mixture due to the formation of salts of KOSHK, which ensures high strength and heat resistance of the material.

In order to impart plastic properties to the road color material, it introduces cold-black rubble into the hot modified mixture. Plasticization occurs due to coagulation bonds of the bitumen film, which provide the material with high crack resistance.

It is impossible to introduce cold black crushed stone before modifying the mixture with organic matter or simultaneously with the introduction of KOSFA, since the temperature decreases and the mixture is not structured. It is not possible to heat black rubble in order to avoid the pigment being absorbed by the black in the holding.

The same nature of bitumen and COSMC (COSMC dissolves well in bitumen) ensures good adhesion of the pigmented organomineral mixture to black rubble and, as a result, high physicomechanical properties of colored road material as a whole.

Examples of the method and the properties of the resulting coating are shown in the table. As can be seen from the above data, the coating of the organic-mineral mixture prepared by the proposed method has a greater crack resistance and water resistance.

Claims (1)

Invention Formula The method of preparing a colored organic-mineral mixture for pavements, which includes mixing the mineral components with the bottoms of synthetic fatty acids at 160-170 ° C, is characterized in that, in order to increase the crack resistance and water resistance of pavements, first the bottoms of synthetic fatty acids are mixed With a mixture of sand, mineral powder, lime and pigment, and then cold black rubble is introduced into the mixture.