Usage of Bayburt Stone in Road Infrastructures as an Improvement Material

Subgrade is one of the most important factors which affects the operating time of highways. The subgrade of highways, which are a part of a freight transportation network, is exposed to more pressure. Therefore, the stabilization of subgrades becomes more important for these highways. Usage of sustainable and eco-friendly resources produces economic and effective solutions for the stabilization of highways. Bayburt Stone (BS) can be a good example of the solutions which are mined in Bayburt City, in the north-east part of Turkey. Bayburt Stone (BS) is Eocene age and consists of zeolite minerals. Because they contain a high volume of amorphous silica, tuffic Bayburt stones have pozzolanic activity. Therefore, the stones have binding characteristics when they mix in with lime. In this study, it is intended to show that BS waste which is obtained from the stone quarries during the stone processing, can be used as a stabilizing material in subbase layers of highways. Within the scope of the study lime and lime-BS mixtures were used to improve clayey subbase layers. In the experimental studies, a different amount of 0.2-80 μm diameter BS and lime mixtures were used and the improvement results of lime and lime-BS mixtures were compared. The obtained stabilization materials were tested for clayey soils. In this context, non-confined compression test, shear box, XRD, XRF and Particle Sizer tests, standard compaction and soil classification tests (Liquid-Plastic Limit Test, Sieve Analysis, Hydrometer Analysis) were performed. As a result of the study it was observed that the strength of samples which were obtained from lime-BS increased remarkably and it is possible to make compaction with lower compaction energies.

Language

  • English

Media Info

  • Media Type: Digital/other
  • Features: Figures; References; Tables;
  • Pagination: pp 439-444
  • Monograph Title: Proceedings of First International Conference on Traffic and Transport Engineering (ICTTE)

Subject/Index Terms

Filing Info

  • Accession Number: 01598456
  • Record Type: Publication
  • ISBN: 9788691615307
  • Files: TRIS
  • Created Date: Apr 19 2016 12:43PM