Features design and use of draining asphalt concrete

published:
Number: Issue 21(2020)
Section: Construction and civil engineering
The page spacing of the article: 168-176
Keywords: asphalt mixture, open void, draining asphalt concrete, grain composition, porousity
How to quote an article: Anton Zheltobriukh, Ivan Kopynets, Oleksii Sokolov Features design and use of draining asphalt concrete // Dorogi і mosti [Roads and bridges]. – 2020. – Iss. 21. – P. 168-176. [in Ukrainian].

Authors

M.P. Shulgin State Road Research Institute State Enterprise - DerzhdorNDI SE, Kyiv, Ukraine
https://orcid.org/0000-0003-0764-8793
M.P. Shulgin State Road Research Institute State Enterprise, Kyiv, Ukraina
https://orcid.org/0000-0002-0908-4795
M.P. Shulgin State Road Research Institute State Enterprise - DerzhdorNDI SE, Kyiv, Ukraine
https://orcid.org/0000-0002-4694-9647

Summary

Introduction. It is established that an additional measure to combat the negative impact of water on the road structure can be the use of drainage asphalt, which allows during rainfall quickly, without delay on the surface of the surface to drain surface water through the pores in the asphalt to the sidelines. This, in turn, reduces the negative impact of water on the durability of the road surface and increases traffic safety during precipitation. The stages of designing such asphalt concrete are formulated.

Problem statement. The long-term impact on the asphalt road surface of the aquatic environment is a determinant of its durability. The issue of timely removal of surface water from the pavement is a must and is solved by giving the road surface a cross slope. As practice shows, this does not sufficiently protect the road surface from the adverse effects of water. High operational safety, improved road performance is achieved by removing accumulations of water stains from the surface that reduce the adhesion of the wheels to the road surface. These qualities can be improved by the introduction of draining asphalt concrete.

Unfortunately, today in Ukraine there are no normative documents that would regulate the design, manufacture and execution of works on this technology, which makes it impossible to use it in practice and limits the optimization and development of the Ukrainian road sector in this direction.

Purpose. Perform an analysis of the existing experience of the design features of draining asphalt concrete for the further introduction and improvement of operational safety and operational characteristics of the road surfaces of Ukraine due to new road-building materials.

Materials and methods. Analysis of information sources and experience on the design of draining asphalt concrete and study of requirements for mineral materials and composition of such mixtures.

Results. An analytical review of the experience of designing prospective road-building material — draining asphalt concrete is conducted. The stages of selection of the composition of the mixture, the requirements for the crushed stone, the particle size composition, the content of binder and stabilizing additives are studied and analyzed.

Conclusions. Analysis of information sources on the design features of draining asphalt concrete found that draining asphalt is a special type of asphalt, which due to the peculiarities of the particle size of the mixture, the main part of which is single-fractional crushed stone (up to 90%), unlike typical asphalt, has a high enough porosity (18–28 %) and requires extremely high attention and strict requirements for crushed stone materials.

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