Comparison of load-bearing and non-load-bearing asphalt sand and how to pay its price in the road price index

Articles in Press

Document Type : Scientific - Research

Authors
Mohammad Ali Taghizadeh Shirazi 1
Aref Sanei 2
Maedeh Sefidgari 3
Navid Nadimi 4
M.Reza Zeraati 5
1 Senior Civil Engineer And Secretary Of The Technical Committee Of The Kerman General Directorate Of Highways
2 Senior in Road and Transport University, Kerman
3 PhD student, Transportation Planning Engineering, Education teacher University, Tehran, Iran
4 Associate Professor, School of Civil Engineering, Shahid Bahoner University, Kerman, Iran
5 Master of Road and Transportation, Bahoner kerman University, Iran.
10.22119/jte.2025.471031.2720
Abstract
By mixing washed natural sand or broken sand or a mixture of these two with pure bitumen, a material called asphalt sand is obtained, which according to the annual price index of road and bond or road management has the highest unit price among other types of asphalt such as binder and topka. is assigned to itself. In terms of structural issues and bearing capacity, if this asphalt layer is placed at a level of more than ten centimeters compared to the final surface, it has no load-bearing capacity and can be easily used to fill passive cracks if this asphalt layer is placed at a level of less than ten centimeters compared to the surface. to be final, it will find the burdensome conditions for which it is necessary to think of arrangements. In this research, an attempt has been made to separate the nature of these two types of asphalt sand from each other, their technical and regulatory criteria, and price analysis and payment methods from the road price list have been studied and evaluated.

Keywords

Subjects

Quarterly Journal of Transportation Engineering

Articles in Press, Accepted Manuscript
Available Online from 20 October 2025

  • Receive Date 29 October 2024
  • Revise Date 16 September 2025
  • Accept Date 27 September 2025