Fence Post Concrete Mix Ratio

I ve easily used over 300 bags of this stuff throughout the years in my business.

Fence post concrete mix ratio.

To produce a 3000 psi cubic yard of concrete 27 cubic feet the concrete mixture ratio is. The general rule of thumb when setting a post is that the depth of the post s hole needs to be 1 3 to 1 2 of the actual above ground height of the post. The below table gives a basic indication of the mix ratios used for different purposes but should be used as a guide only. 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.

At least 2 bags per fence post sometimes more depending on the size of the hole and the post. 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. Some additional things to consider when finding a suitable mix design include but are in no way limited to the following.

Depending on the application concrete mix design can be complex. The diameter of your post hole should be three times the diameter of your post. Its cheaper than the other stuff and easier to move than the 80lb bags. 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.

I have an 8 auger so i average 2 bags.