Sand-asphalt : Cohesion and Friction Angle
Sand-asphalt : Cohesion and Friction Angle
(OP)
Hi everyone,
I am working on an oil-storage tank. The bottom of the tanks was protected against corrosion (underneath the bottom plate of the tank, between bottom plate and soil foundation) with 5cm thickness of mixed sand-asphalt layer. The problem is there was a local rupture of the sand-asphalt along the circumference of the tank causing the high edge settlement (or Deflection).
I would like to model this in LimitState:GEO but I don't know what are the properties for mix sand-asphalt (Cohesion and friction angle). Could anyone help me for this one?
Thanks.
I am working on an oil-storage tank. The bottom of the tanks was protected against corrosion (underneath the bottom plate of the tank, between bottom plate and soil foundation) with 5cm thickness of mixed sand-asphalt layer. The problem is there was a local rupture of the sand-asphalt along the circumference of the tank causing the high edge settlement (or Deflection).
I would like to model this in LimitState:GEO but I don't know what are the properties for mix sand-asphalt (Cohesion and friction angle). Could anyone help me for this one?
Thanks.





RE: Sand-asphalt : Cohesion and Friction Angle
Second, a sand-asphalt mix has rheological properties that you will not find in soil materials alone. It's strength and stability are functions of the mix characteristics and temperature. Sand-asphalt mixes can range from being a semi-solid to a viscous liquid, depending on temperature. In most instances it will be somewhere between and will deform based on loading.
If I were analyzing the settlement of the tank, I would ignore the asphalt contribution and start the analysis at the bottom of the asphalt, not at the top of the asphalt.