Activated sludge waste water treatment calculations are made easy in U.S. or S.I. units with the Excel spreadsheets that can be downloaded through links in this article. The Excel formulas use parameters like biochemical oxygen demand (BOD), waste water f

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Feb 11, 2019 · Concrete Calculation. Calculating these walls will require the length of the footing and wall, height and width of the footing and wall, along with the thickness of the footing and wall. For stem walls, calculate the footing area and the

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Our free online Concrete Column (circular) Calculator will help you to easily calculate how many yards of concrete you need for pouring concrete columns. Enter in the desired height of the concrete column in inches as well as the desired diameter of the c

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What are the temperature requirements for placing concrete? Concrete will not set on its own at temperatures under 35 degrees. While heated water and aggregates or the use of accelerants do allow concrete to be poured at temperatures below freezing, it is

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