Quantitative analysis of geometric characteristics of crushed stone
The crushed stone in the SRP affects the cell distribution of the polymer and an ITZ is produced between the matrix polymer and crushed stone The effect of the crushed stone particle spacing on the meso structural characteristics the cell structure of the polymer and the ITZ thickness exhibits a certain regularity In this section
Load spread under footings Foundation engineering Eng
Get a hold of any Foundation Engineering Book by either Das Cernica or Bowles You need to look at the pressure distributions isobars that occur under footings On excavation details I have always seen the following With crushed stone under the footings the distribution angle is degrees or With compacted fill its about 45 degrees