Fence Post Concrete Mix Ratio

As a quick answer a concrete mix ratio of 1 part cement 2 parts fine aggregate sand and 4 parts course aggregate will cover most general domestic jobs.

Fence post concrete mix ratio.

3000 psi concrete mix ratio. In terms of the ratio to use for a concreting fence posts the best mix is a mix of 1 2 4 1 cement 2 sand 4 aggregate. 517 pounds of cement or 234kg 1560 pounds of sand or 707kg 1600 pounds of stone or 725kg. To produce a 3000 psi cubic yard of concrete 27 cubic feet the concrete mixture ratio is.

The diameter of your post hole should be three times the diameter of your post. By measuring the cement stone and sand you will have a consistent concrete mix throughout your entire project. Its cheaper than the other stuff and easier to move than the 80lb bags. I ve easily used over 300 bags of this stuff throughout the years in my business.

The below table gives a basic indication of the mix ratios used for different purposes but should be used as a guide only. I have an 8 auger so i average 2 bags. So six foot high fence posts ideally need to be buried three feet into the ground. Concrete is always best mixed using a cement mixer to ensure it s even but if you only need to mix a little hand mixing is ok see mixing concrete project above for tips on how to do this.

Depending on the application concrete mix design can be complex.