Calculate the amount of concrete you'll need. Cement mixture proportioning can be done either by weight or by volume. Check out here how to calculate cement, sand, and gravel.

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Calculate the amount of concrete you'll need. Cement mixture proportioning can be done either by weight or by volume. Check out here how to calculate cement, sand, and gravel.

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The fact that BP and Halliburton knew this cement job could fail only solidifies their liability and responsibility for this disaster. We now know what BP and Halliburton knew, and when they knew it. And now we know they did absolutely nothing about it.
Rep. Edward J. Markey • Sounding incredibly pissed (for understandable reasons) about the whole situation with the Gulf Oil Spill. Why, you ask? Well, it seems our friends at both BP and Halliburton knew weeks before that the cement mixture they were using to seal the well was unstable and didn't work particularly well. But, in a brilliant decision which had amazing effects on the Gulf region, they used it anyway. And by "brilliant" we mean awful. And by "amazing" we me disastrous. Heckuva job, BP and Halliburton. Heckuva job. source (via)