Once you have all these contacts come-up with a concrete mix, let me see it if you would like my opinion. I will let you know if I agree or disagree & possible improvements. IMPORTANT: Is this an existing room? Is this room "on-grade"? Do not forget concrete weighs 150F#/cubic foot /// 5,300 pounds per cubic meter. Nothing better than collapsing your house. Best to you,zz. |
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