I say it often on my posts here at Civil4M - It's interesting to see how engineers in other countries apply engineering principles, materials, etc.
In Mr.
maheshsavandappa post, he indicates that he has used excavated soil as a component of a CLSM: I must say, I've never heard of that. In the US, CLSM mixtures I've used have followed a mix design formula somewhere along these lines:
Portland Cement - 50 lbs
Fly Ash (Class C or F) - 125 lbs
Fine Aggregate/Sand (SSD) - 2900 lbs
Water - 50-65 gallons
We primarily use these mixes for gravity void filling of open trenches or excavations where compacting aggregate may be challenging. We have used them for filling abandoned sewers, but you have to make sure that the sewer you are filling has enough slope for the CLSM to flow by gravity. CLSM mixes are not pumpable, like a grout, due to the amount of line friction that the fine aggregate causes - I've seen a Contractor blow the lines off of a grout pump because of this.
A mix of this type will have a compressive strength range between 30 - 150 psi and a Dynamic Cone Penetration rate at 3 days of around 1.5 inches/blow.
Hope this helps - Cheers!!
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