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Thanks GeoPaveTraffic. You seem to have answered my curiosity

One more info is that this light weight material is flowable when wet and it is like concrete when solidified but with less strength, and weight.

Thanks. actually I am trying to model a lightweight material made from concrete as a backfill material. I needed some mechanical properties of this material, I know some of them but I don't have ideal of the phi angle. I though maybe that of regular concrete should be close enough. At least...

does anybody have an idea of friction angle for concrete?

Hi All, I was going through the ASTM C680 for a calculation of convective heat transfer coefficient. My particular application presently is cylindrical (pipe). However there is this concern of the direction of fluid flow. I am wondering if somebody knows on which premise the formulars were...

Thanks TGS4. I will try your suggestions. My material is steel pipe with surface temperature an average mean anual ground temperature. For the area of the project it is around 5°C. Thanks

Hi All, Could anybody help on this one. I am currently working on a project where I need convective air thermal conductivity in pipe. It would be of great help if air convective heat transfer coefficient is know too. I am interested in typical values. I know these values depend on several...