Evaluation of Norwegian gradation based regulation for frost susceptibility of crushed rock aggregates in roads and railways

Loranger, Benoit; Кузнецова, Е. М.; Hoff, Inge; Aksnes, Jostein; Skoglund, Kjell Arne

doi:10.1201/9781315100333-275

Cited by 3 publications

(2 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The results demonstrated that the application of TDA and LECA reduces the overall settlement and the rate of vibration propagation in the railway embankments, improving their stability and resistance to dynamic load or seismic effects. Artificial aggregate made of expanded clay -LECA or waste glass -GLASOPOR was also tested in the research implemented in Finland (Loranger et al, 2017). The output of their publication is the collected data necessary for the calibration of the numerical models.…”

Section: Introductionmentioning

confidence: 99%

Assesment of the Possibility of Foam Glass Application in the Sub-Ballast Layers

Ižvolt

Dobeš

Holešová

et al. 2023

Journal of Civil Engineering and Management

View full text Add to dashboard Cite

The paper investigates whether foam glass could reduce the structural thickness of the protection layer in the construction of the railway track (saving of natural materials – crushed aggregate) and, at the same time, also provide sufficient thermal protection of the frost-susceptible subgrade surface. It also discusses whether the incorporation of foam glass would have a relevant effect on the increase of the deformation resistance of the railway track structure at the level of the sub-ballast upper surface. Following these assumptions, the paper presents the results of experimental measurements of the deformation resistance of the modified structural composition of the sub-ballast layers (with an embedded foam glass layer) and their comparison with the results determined on a structure with a standard composition of the sub-ballast layers (crushed aggregate sub-ballast layer/protective layer). Also, numerical and mathematical analysis of the influence of the built-in thermal insulation foam glass layer on the reduction of the structural thickness of the protective crushed aggregate layer in terms of the effect of climatic factors is conducted in the paper. The mathematical model, developed by the research, provides the possibility of continuous monitoring of the change in the railway track structure freezing depending on climatic characteristics.

show abstract

Section: Introductionmentioning

confidence: 99%

Assesment of the Possibility of Foam Glass Application in the Sub-Ballast Layers

Ižvolt

Dobeš

Holešová

et al. 2023

Journal of Civil Engineering and Management

View full text Add to dashboard Cite

show abstract

“…[ 7 ]). At present, as thermal insulation or reinforcement materials in sub-ballast or sub-base layers can be used various polymer materials e.g., expanded polystyrene (EPS) [ 8 ], polyurethane [ 9 ], extruded polystyrene (styrodur) [ 10 , 11 , 12 ], artificial aggregates, liapor with foam glass [ 13 , 14 ], and geosynthetic materials (geogrids, geo-mattresses) [ 15 , 16 ]. The expanded polystyrene (EPS) in contact with subsoil is also used as isolation under (shallow) foundation [ 17 , 18 ] and under road pavement foundation [ 19 ].…”

Section: Introductionmentioning

confidence: 99%

Experimental and Numerical Verification of the Railway Track Substructure with Innovative Thermal Insulation Materials

et al. 2021

View full text Add to dashboard Cite

The article aims to present the modified structural composition of the sub-ballast layers of the railway substructure, in which a part of the natural materials for the establishment of sub-ballast or protective layers of crushed aggregate is replaced by thermal insulation and reinforcing material (layer of composite foamed concrete and extruded polystyrene board). In this purpose, the experimental field test was constructed and the bearing capacity of the modified sub-ballast layers’ structure and temperature parameters were analyzed. A significant increase in the original static modulus of deformation on the surface of composite foamed concrete was obtained (3.5 times and 18 times for weaker and strengthen subsoil, respectively). Based on real temperature measurement, it was determined the high consistency of the results of numerical analyses and experimental test (0.002 m for the maximum freezing depth of the railway line layers and maximum ±0.5 °C for temperature in the railway track substructure–subsoil system). Based on results of numerical analyses, modified railway substructure with built-in thermal insulating extruded materials (foamed concrete and extruded polystyrene) were considered. A nomogram for the implementation of the design of thicknesses of individual structural layers of a modified railway sub-ballast layers dependent on climate load, and a mathematical model suitable for the design of thicknesses of structural sub-ballast layers of railway line were created.

show abstract

A Multi-Decadal Literature Review of Theory Related to the Freezing of Unsaturated Soils, from Detailed Physics to Catchment-Scale Implications

Stuurop

2023

Preprint

View full text Add to dashboard Cite

Evaluation of Norwegian gradation based regulation for frost susceptibility of crushed rock aggregates in roads and railways

Cited by 3 publications

References 0 publications

Assesment of the Possibility of Foam Glass Application in the Sub-Ballast Layers

Assesment of the Possibility of Foam Glass Application in the Sub-Ballast Layers

Experimental and Numerical Verification of the Railway Track Substructure with Innovative Thermal Insulation Materials

A Multi-Decadal Literature Review of Theory Related to the Freezing of Unsaturated Soils, from Detailed Physics to Catchment-Scale Implications

Contact Info

Product

Resources

About