<abstract xmlns="http://www.w3.org/1999/xhtml"><p>One of the most important elements of road construction is its substructure, which constitutes the base on which the next layers of road are placed. Mixture of crushed-stone aggregate is very often used as material for substructure. The most frequently used type of aggregate is magma rocks, due to its good physical-mechanical properties. However, it is not always available, so it is substituted by sandstone or even concrete rubble aggregates. The bearing ratio CBR is a parameter determining the suitability of a certain aggregate for road substructure. It is also one of the most popular quality tests of aggregate as it does not require complex apparatus. This paper analyses the results of physical and geotechnical tests with particular focus on CBR bearing ratio of crushed aggregates and their application as substructure for road construction. There has also been an attempt to find the correlation between CBR bearing ratio and other physical and geometrical properties.</p></abstract>

One of the most important elements of road construction is its substructure, which constitutes the base on which the next layers of road are placed. Mixture of crushed-stone aggregate is very often used as material for substructure. The most frequently used type of aggregate is magma rocks, due to its good physical-mechanical properties. However, it is not always available, so it is substituted by sandstone or even concrete rubble aggregates. The bearing ratio CBR is a parameter determining the suitability of a certain aggregate for road substructure. It is also one of the most popular quality tests of aggregate as it does not require complex apparatus. This paper analyses the results of physical and geotechnical tests with particular focus on CBR bearing ratio of crushed aggregates and their application as substructure for road construction. There has also been an attempt to find the correlation between CBR bearing ratio and other physical and geometrical properties.

Mixture of Crushed- Stone Aggregate as Material For Substructure Layers

Studia Geotechnica et Mechanica

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

{"article-title":"Mixture of Crushed- Stone Aggregate as Material For Substructure Layers"}

One of the most important elements of road construction is its substructure, which constitutes the base on which the next layers of road are placed. Mixture of...

Mixture of Crushed- Stone Aggregate as Material For Substructure Layers

Article Category: Research Article

Published Online: Aug 04, 2018

Page range: 154 - 162

Received: Mar 23, 2018

Accepted: May 29, 2018

DOI: https://doi.org/10.2478/sgem-2018-0014

Keywords
mixture of crushed-stone aggregate, the California bearing ratio (CBR), road substructure

© 2018 Joanna Hydzik-Wiśniewska et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

Mixture of Crushed- Stone Aggregate as Material For Substructure Layers

Article Category: Research Article

Published Online: Aug 04, 2018

Page range: 154 - 162

Received: Mar 23, 2018

Accepted: May 29, 2018

DOI: https://doi.org/10.2478/sgem-2018-0014

Keywordsmixture of crushed-stone aggregate, the California bearing ratio (CBR), road substructure

© 2018 Joanna Hydzik-Wiśniewska et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

Keywords
mixture of crushed-stone aggregate, the California bearing ratio (CBR), road substructure