Collection of scientific papers "Dorogi i Mosti" (Roads and Bridges)
ISSN 2524-0994 (Print)
ISSN 2786-488X (Online)
EN UA

Method for determining the thermal resistance of reinforcing synthetic materials

published:
Number: Issue 18(2018)
Section: Construction and civil engineering
DOI: https://doi.org/10.36100/dorogimosti2018.18.070
The page spacing of the article: 70-83
Keywords: reinforcing synthetic materials, road pavement structure, thermal impact, tensile strength, elongation, change in linear dimensions, criteria for evaluation of thermal stability.
How to quote an article: Ihor Gameliak, Ivan Bernatsky, Liudmyla Dmytrenko. Method for determining the thermal resistance of reinforcing synthetic materials. Dorogi і mosti [Roads and bridges]. Kyiv, 2018. 18. P. 70-83 [in Ukrainian]

Authors

National Transport University, Kyiv, Ukrainе
https://orcid.org/0000-0001-9246-7561
National Transport University, Kyiv, Ukrainе
https://orcid.org/0000-0001-5729-4941
National University Technology and design, Kyiv, Ukrainе
https://orcid.org/0000-0002-0735-1802

Summary

Introduction. Synthetic reinforcing materials (RSM) of various structures and raw materials are widely used in modern technologies of construction of roads for reinforcement of layers of road structures which ensures their durability and reliability.
Problem statement. When the road surface is arranged, due to the impact of hot asphalt concrete on the reinforcing layer, there is a heat stroke which may cause excessive deformation (increasing or decreasing the linear dimensions) of the RSM.
Purpose. The purpose of this study is to develop a method for determining the resistance to thermal impacts of samples of RSM in contact with granular material heated to the set temperature.
Materials and methods. For the study, typical RSM of different raw materials are selected which are used as a reinforcing material at the arrangement of roads, etc.
Results. Tesile strength of the RSM on the basis of raw material with increasing temperature of heating: from polypropylene - decreases bylinear dependence; from fiberglass – does not change; from polyester and polyvinyl alcohol - increases linearly by the linear dependence.
Tensile strength of the RSM along the sample’s width on the basis of different raw materials for all tested materials with increasing heating temperature is reduced by linear dependence and is characterized by a significant spread of data (6-10%), especially for fiberglass (up to 12%). Elongation of RSM: from fiberglass (alongthe length and width of the specimen) – does not change when the heating temperature of the grid is changed and in average is 3.1 %; from polyester – increases from 10.1 to 25 % by exponential dependence (along the length of the sample) and by linear dependence from 10,1 to 17,0 % (along the width of the sample) with increasing temperature of the grid heating; from polypropylene – slightly increases by linear dependence (along the length of the sample) and practically does not change (along the width of the sample) with increasing temperature of the grid heating and is characterized by a large spread of data. For RSM from polyvinyl alcohol, the size does not change (the elongation is constant along the length of the sample) and the elongation from 8.8 to 6.0 % (along width of the sample) decreases with increasing the temperature of the grid heating, from the ambient temperature to 250 °C.
Conclusion. In the article, the method for determining the resistance to thermal impact of the reinforcing synthetic materials (RSM) samples in contact with the granular material heated up to the established temperature is developed that is modeling the temperature impactsat the arrangement of asphalt layers of road pavement structures.

References

1. Industry Building Codes (GBN V.2.3-37641918-544:2014) Zastosuvannia heosyntetychnykh materialiv u dorozhnikh konstruktsiiakh. Osnovni vymohy (Application of geosynthetic materials in road constructions. Basic requirements). Kyiv, 2014. 147 p. (Information and documentation) [in Ukrainian].
 
2. State Standard of Ukraine (DSTU 8607:2015) Materialy heosyntetychni dorozhni. Metody vyprobuvannia. (Geosynthetic materials for road. Test methods) Kyiv, 2015. 57 p. (Information and documentation) [in Ukrainian].
 
3. Standard of organization of Ukraine (SOU 45.2-00018112-076:2012) Asfaltobetonni shary z armuiuchymy prosharkamy. Metod vyznachennia rozrakhunkovykh kharakterystyk (Asphalt concrete layers with reinforcing layers. Method of determining the calculation characteristics). Kyiv, 2012. 29 p. (Information and documentation) [in Ukrainian].
 
4. P V.2.3-218-21476215-734:2008 Rekomendatsii z zastosuvannia armuiuchykh syntetychnykh materialiv riznoho typu dlia armuvannia asfaltobetonnykh shariv pry proektuvanni konstruktsii pidsylennia dorozhnoho odiahu ( Recommendations on the use of reinforcing synthetic materials of various types for the reinforcement of asphalt concrete layers in the design of road pavement). Kyiv, 2008. 57 p. (Information and documentation) [in Ukrainian].
 
5. Hameliak I.P., Bernadskyi I.I., Dmytrenko L.A., Shatylo T.V. Vyznachennia teplostiikosti ta termostiikosti heogratok pry armuvanni asfaltobetonnykh pokryttiv (Determination of heat resistance and heat resistance of geogrids during reinforcement of asphalt concrete coatings). Avtomobìlʹnì dorogi ì dorožnê budìvnictvo. Kiev, 2014. Issue 91. P. 41-51. [in Ukrainian].
 
6. Gameliak I., Zhurba, G., Kostryckyy, V. & Dmitrenko, L. Determination of geosynthetic materials resistance to cyclic loading. Proceedings of the 9th Internet Conference on Geosynthetics. Guaruja, 2010. 3. P. 631-634. [in Brazil].
 
7. Kashyna N.I. Proektuvannia viazannykh heoreshitok iz zadanymy ekspluatatsiinymy vlastyvostiamy (Designing knitted geogrids with given operational properties). Ph.D (Ing.). St. Petersburg, 2014. 172 p. [in Rusian].

Archives

Main news

Calendar of events and news

Important information resources