sand vs clay vs crusher dust
sand vs clay vs crusher dust
(OP)
I am building a 60 x 100 structural steel building. The building will have a 2' x 2' reinforced concrete foundation. Concrete blocks will will bring the building up to grade. The height of the blocks will be about 2' in the back and 4' in the front. My question is what would be the best material to use to fill with under the slab. Choices are between sand, crusher dust and clay. I can get the crusher dust the cheapest because of a friend at the rock quarry, but is it suitable for compaction.





RE: sand vs clay vs crusher dust
RE: sand vs clay vs crusher dust
RE: sand vs clay vs crusher dust
RE: sand vs clay vs crusher dust
The term "dust" implies rock flour, which is a very fine material, not suitable alone for fill or compaction.
RE: sand vs clay vs crusher dust
RE: sand vs clay vs crusher dust
Also, if the rock is limestone, the fines can be cubic and there is an amount of cementing ability in the fine fines that can develop later.
Dick
Engineer and international traveler interested in construction techniques, problems and proper design.
RE: sand vs clay vs crusher dust
Gradation doesn't tell the whole story, as you noted, but it's a good starting point.
RE: sand vs clay vs crusher dust
In some locations "quarry dust" is used as a term for crushed rock fines.
RE: sand vs clay vs crusher dust
No, I'm not taking anything away from Ron and others in their recommendation for sand, I'm just saying crusher dust (what we call No. 10 screenings) can be pretty well graded and very dense when compacted. Around Virginia, much of the No. 10 screenings are the by-product from processing #57 open-graded aggregate. There's a lot of granular material below the No. 10 screen.
f-d
¡papá gordo ain't no madre flaca!
RE: sand vs clay vs crusher dust