Tag: sand replacement densities

Higher densities, better physical properties, all civil engineering graduates know this. The specification for highway works has a method specification for general soil compaction and an end of product density for special fills. Now special fills that require density measurements are generally those behind structures, with limited space and therefore limited choice of compaction plant, you can begin to understand this, especially as the structure will not move. Where do you feel serious bumps on motorways? generally at structures. So is density measurement working? The difficulty I approach, is returning to measuring densities on general embankment fill, the method compaction…
Running up to Christmas, just had company Christmas lunch, do you notice when the loud music starts the older guys head for the door? I am part of that congregation. Anyway I am old enough to remember digging sand replacement densities in lean mix and wondering at the mysteries of comparing them to a theoretical density. Then there used to be a minimum strength, then a minimum and a maximum, then if my memory is correct, a minimum again. Whether it was the blacktop lobby or a diminishing amount of long greenfield road jobs, the good old leanmix was no…
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