9. Research of structuralized processes in asphalt concrete

The growth of the strength of the samples from shungite is 9.3% compared with the analogical indexes on lime stone [6, 15]. At less density, the growth of strength characteristics in time which attests the process of structurization of asphalt concrete on shungite mineral powder takes place.

This process can be explained from the point of active extraction of bitumen components with mineral powder from shungite. While analyzing the structure of asphalt concrete agent by microscope (C3M) NanoEducator at increase in 1000 and 2000 times (Figure 15), it is possible to mention the substance structure vagueness. The following figure present microstructure of asphalt concrete binding agent from (a) shungite (b) lime stone.

It is clear that an original solution of shungite occurs during amalgamation of binder and shungite. Modern image about the material under study is the precondition for such a supposition. It is known that shungite substance is not a simple amorphous carbon but a mix of various carbonic allotropes which have small lattices connected with amorphous carbon [20]. The more so various mixes of compound organic substances are a part of shungite composition. It is 97–99% of water saturated organics of shungite which escapes into the solution together with fullerenes and determine their properties.

Chemical composition of mineral powders from shungite and lime stone is shown in Table 7.

### 10. Conclusions

1. Experimental researches of physical-mechanical properties of asphalt concrete mixes of different types proved the possibility mineral powder from shungite application. So the interaction of bitumen with shungite mineral powder provides the formation of a stable structure of asphalt concrete with the predominance of closed pores.


Figure 15. Microstructure of asphalt concrete binding agent from a) shungite b) from lime stone.

9. Research of structuralized processes in asphalt concrete

Coefficient of heat resistance 0.63 —

Swelling of samples from powder and bitumen mix, % 1.87 Not more than 3.0

asphalt concrete binding agent from (a) shungite (b) lime stone.

together with fullerenes and determine their properties.

10. Conclusions

Compression strength, М Па: при

20С in water saturated condition 50С 4.3

2.7 — Water saturation of samples from powder and bitumen

Table 6. Physical chemical properties of asphalt binding agent.

20С

104 Modified Asphalt

3.9

mix

The growth of the strength of the samples from shungite is 9.3% compared with the analogical indexes on lime stone [6, 15]. At less density, the growth of strength characteristics in time which attests the process of structurization of asphalt concrete on shungite mineral powder takes place. This process can be explained from the point of active extraction of bitumen components with mineral powder from shungite. While analyzing the structure of asphalt concrete agent by microscope (C3M) NanoEducator at increase in 1000 and 2000 times (Figure 15), it is possible to mention the substance structure vagueness. The following figure present microstructure of

Name of the index Mineral powder МП-2 Requirements of established order

shungite

0.9 Not less than 0.7

It is clear that an original solution of shungite occurs during amalgamation of binder and shungite. Modern image about the material under study is the precondition for such a supposition. It is known that shungite substance is not a simple amorphous carbon but a mix of various carbonic allotropes which have small lattices connected with amorphous carbon [20]. The more so various mixes of compound organic substances are a part of shungite composition. It is 97–99% of water saturated organics of shungite which escapes into the solution

Chemical composition of mineral powders from shungite and lime stone is shown in Table 7.

1. Experimental researches of physical-mechanical properties of asphalt concrete mixes of different types proved the possibility mineral powder from shungite application. So the interaction of bitumen with shungite mineral powder provides the formation of a stable

structure of asphalt concrete with the predominance of closed pores.


Table 7. Chemical composition of mineral powders from shungite and lime stone.

4. The use of shungite material instead of lime-stone mineral powder increases the fatigue durability of asphalt concrete especially in the water saturation condition. It connects with the high adhesion activity of shungite carbon containing material.

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The Enhancement of Asphalt Concrete Surface Rigidity Based on Application of Shungite-Bitumen Binder

http://dx.doi.org/10.5772/intechopen.76877

107

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5. During the process of plot arrangement it was determined that asphalt concrete mix has good placeability and compactability which allows promote designed characteristics of evenness and compacting factor while constructing road carpets.
