SOME PROPERTIES OF SANDASPHALT IN HYDRAULIC STRUCTURES

Sandasphalt, or sand-bitumen, is a mixture of sand and 3 to 5 percent by weight of bitumen. Its resistance towards erosion and sand tightness renders sandasphalt a popular substitute for clay or minestone in dam constructions. Sandasphalt will probably be used in the outer shell of relatively steep abutments in the eastern Scheldt storm surge barrier in the Netherlands. For this application restrictions on the allowed deformations are added to the usual stability requirements. A recently started research programme is investigating whether sandasphalt may meet these requirements. A visco-plastic stress-strain relation was developed and built into the well-known stability analysis according to Bishop to perform more reliable stability calculations. For the estimation of deformations a similar stress-strain relation was put into the originally visco-elastic finite element programme MARC. With these tools available now an assessment can be made of the applicability of sandasphalt in hydraulic structures where restrictions are imposed on the deformations. (TRRL)

• Supplemental Notes:
  • Proceedings of the 10th International Conference on Soil Mechanics and Foundation Engineering, Volume 3, Stockholm.
• Corporate Authors:

  AA Balkema

  P.O. Box 1675
  Rotterdam,   Netherlands  BR-3000
• Authors:
  • Mulder, Greg
  • Nieuwenhuis, J D
  • Ruygrok, P A
  • Calle, E O
  • Petschl, R O
• Conference:
  • Proceedings of the 10th International Conference on Soil Mechanics and Foundation Engineering, Volume 3, Stockholm.
• Publication Date: 1981

Media Info

• Features: Figures; Photos; References;
• Pagination: p. 485-490

Subject/Index Terms

• TRT Terms: Asphaltic sand; Bitumen; Conferences; Dams; Deformation; Deformation curve; Earth dams; Elastoplasticity; Erosion; Erosion control; Hydraulic structures; Prevention; Sand; Stability (Mechanics); Stability analysis; Strength of materials; Viscoelasticity
• Uncontrolled Terms: Elastic plastic analysis; Use
• Old TRIS Terms: Sandasphalt
• ITRD Terms: 4963: Bitumen; 8525: Conference; 5595: Deformation; 3317: Earth dam; 5275: Erosion; 9149: Prevention; 4105: Sand; 5930: Stability; 5544: Strength (mater); 9084: Use
• Subject Areas: Geotechnology; Highways; Materials; Security and Emergencies; I31: Bituminous Binders and Materials;

Filing Info

• Accession Number: 00370160
• Record Type: Publication
• Source Agency: Swedish National Road and Transport Research Institute (VTI)
• Files: ITRD, TRIS
• Created Date: Mar 31 1983 12:00AM