SU1028697A1 - Asphalt mix - Google Patents

Abstract

1. ASPHALT CONCRETE MIXTURE, including bitumen, mineral powder and aggregate, in order to increase the durability of asphalt concrete in phosphoric acid,. as a mineral powder, it contains ground flotation tailings with the enrichment of phosphorous ores and additionally fatty tar or bottoms of synthetic fatty acids, or bottoms of octadecylamine in the following ratio of components, wt.%: Bitum6-8 Ground ,. flotation tails during the enrichment of phosphorous ores 12-24 Fat tar or bottom residues of synthetic fatty acids, or bottom residues 0.1-0.8 octadecylamine Aggregate Remaining 2. Mixture according to claim 1, characterized in that the ground flotation tailings upon enrichment phosphorous Q ores have the following mineralogical 5E composition, wt.%: (L 4-13. Phosphate 33-45 Glauconite 28-40 Quartz Hydroxide 3-4 iron 6-12 Hydroelectric 3-4 Carbonate u 0.5-1.5 X Pyrite

Description

The invention relates to construction materials and can be used to cover highways and floors of industrial buildings. Known asphalt concrete mixture including, wt.%: 6.5-7.5 Mineral 45-58 Alkyl-substituted heterocyclic powder 0.02-0.1 polyamine Sand 16-25 45-58 Crushed stone Closest to the proposed technical essence and the achieved result is asphalt concrete mix 2, including bitumen, mineral powder - pyritic stubs, and aggregate - crushed sand in the following ratio, wt.%:, 3 Pyrite 8.1–9.3. cinder - Rubble 32.5-51.3 Sand Else The disadvantage of these mixtures is the low resistance of the asphalt concrete obtained in phosphoric acid. The purpose of the invention is to increase the bone content in phosphoric acid of asphalt concrete. The goal is to achieve that the asphalt-concrete mixture, including bitumen, mineral powder and aggregate, as mineral powder. Contains ground flotation tailings while enriching phosphorous ores and additionally fatty tar or bottom residues of synthetic lactic acids, or bottom oxacylamine residues at the following the ratio of components, wt.%: Bitumen 6-8 Ground flotation tailings with the enrichment of phosphorous ores 12-24 Fat tar or bottoms of synthetic fat. acids, or vat residues 0.1-0.8. Octadecylamine Aggregate Else Moreover, the ground flotation tailings, when enriching phosphorous ores, have the following mineralogical composition, wt%: Phosphate4-13 Glauconite Quartz Hydroxide 3-4 iron 6-12 Hydroseal 3-4 Carbonate 0.5-1.5 i quartz sand or a mixture of quartz sand with granite rubble fraction of 5-15 mm. The mixture is prepared by mixing the components. . To determine the effect of the mineralogical composition of the mineral powder on the acid resistance, asphalt concrete mixtures are prepared, the compositions of which are listed in Table 1. 1. i. The results of testing these formulations (Table 1) are given in Table. 2 .. From table. 2 that when variations in the mineralogical composition of the ground flotation tailings, the acid resistance of asphalt concrete is high. Prepare a mixture of components of the proposed composition, the composition of which is given in table. 3. After testing these compositions (table. 3), the results are shown in table. four. . In tab. Table 5 shows the results of testing these compositions (Table 3) for acid resistance. Asphalt offered by Sawawa has a high resistance to osphoric acid compared to local.

Table 1

7.57, 20 20 20 0.2 0.2 0.2

72.3 72.3 72.3

table 2

Ground flotation tailings in the enrichment of phosphorous ores

Fat tar

Vat residues of synthetic fatty acids

Residual octadecylamine

Aggregate,

including Sand

Crushed stone Saturation by volume,% Nabuhanne.by volume,% The limit of compressive strength, MPa, with s 1.1 1.05 10.5 10.1 Ratio of water0, 97 0.96 of stability The coefficient of water resistance during prolonged water saturation

Table 3

20.0

15.0

12.0 0.8

0.2

0.1

43., 4

36.2 45.0 35.0

Table 4 2.5. 1.05-2.3 0.24-0.46 2.97-5.02 1.55 1.4 0.8-1.5 6.6-11.5 0.3. .10.5 1.0-1., 21 0.95 0.95 0.92 0.91 0.76-0.97

Table 5

Claims (2)

1. ASPHALT CONCRETE MIXTURE, including bitumen, mineral powder and aggregate, characterized in that, in order to increase the resistance to asphalt concrete in phosphoric acid, it contains ground flotation tails as a mineral powder in the enrichment of phosphorous ores and additionally tar oil or vat residues synthetic fatty acids or bottoms of octadecylamine in the following ratio of components, wt.%: Bitumen 6-8 Ground - flotation tails in the enrichment of phosphorous ores 12-24 Tar oil or vat residues of synthetic fatty acids, or vat residues of octadecylamine 0.1-0.8 Placeholder Else 2. The mixture according to claim 1, characterized in that the ground flotation tailings in the enrichment of phosphorous <-> ores have the following mineralogical SS composition, wt.%: SU 1028697. Phosphate 4-13. Green Earth - 33-45 Quartz 28-40 Iron hydroxide 3-4 Hydromica 6-12 Carbonate 3-4 Pyrites 0.5-1.5