Do not allow the post to go through the bottom of the concrete. Water will wick up the post and rot it right inside the concrete. The bottom wants to be fully encased in concrete. Also taper the top of the concrete around the post so no water sits against the post.
How do you make a circle concrete form?
Make sure there is enough concrete. To work out the area of a circle multiply the diameter of the circle by pi — 3.14. Multiply this figure by depth of the circle and add about 5 percent extra to ensure there is enough concrete. Make the concrete by hand by mixing 1 part cement with 4 parts sand and adding water.
How do you make a circular concrete base?
Quote from the video:
Quote from Youtube video: Fine. You know what i did with this is i had the circle already p pre-built because what i did is i took i used the pi formula in this situation here and i just multiplied um pi times my diameter.
How deep should a post be set in concrete?
The depth of the hole should be 1/3-1/2 the post height above ground (i.e., a 6-foot tall fence would require a hole depth of at least 2 feet). Add about 6 inches of QUIKRETE All-Purpose Gravel into the bottom of the hole.
How do you set a post in concrete?
How to Set a Post in Concrete
- Dig the hole. Make it three times the width of the post and one-third to a half the length of the post. …
- Put the post in the hole. Level the post and fill the hole with Quikrete Fast-Setting Concrete Mix within 3 to 4 inches from the top of the hole.
- Pour water in the hole. …
- Wait.
How do you round concrete edges?
Again, flatten the edge first, using a hand float or a trowel. Clean the edge of the existing concrete by flipping the edger backward and running the radius along the side of the existing slab. Now, flip the edger forward and slide it along the fresh concrete to create a clean edge abutting the existing concrete.
What do you use for curved concrete forms?
Hardboard is inexpensive form material and is easy to flex into smooth curves. Hardboard siding is intended for exterior walls, but it’s also great stuff for forming curves because it’s flexible and cheap. A 12-in.
How long does concrete take to set in a post hole?
The concrete sets up in 20 to 40 minutes, so you can quickly move on to the next stage of the project (a great convenience when setting fence posts) or backfill the hole to finish the job. Under normal curing conditions, you can apply heavy weight to the post (a basketball backboard, for example) after just 4 hours.
Can you put dry concrete in a post hole?
You can set the posts in either Concrete (wet cement) or in gravel (dry cement).
How do you keep a post straight in concrete?
You need to level it in two directions with a 4-foot level. After getting it straight in the first direction, hold one of the braces against the post and drive a single screw to connect the brace to the post. You can then level and brace the post in the other direction and begin filling the hole.
Why deck posts should not be set in concrete?
A deck post should always be placed on top of footing, not inside concrete because it can break. The photo on the left shows a post set in a bracket that has been mounted to the top of a footer. The photo on the right shows a post that has concrete poured around it, which can lead to a crack like you see here.
How do you set a post straight?
How to line up fence posts straight
- Pulling a string. The string is really called ‘mason’s line. …
- Set the location of the first and last posts. I start every fence I build by determining the locations of the first and last posts in each run. …
- Dig in. …
- Map the rest of the posts. …
- Brace for it. …
- Fasten those posts.
How do you keep fence posts from rotting in concrete?
Consider Adding Posts to Concrete
From here, you should fill the hole with about 6 inches of gravel. This will prevent rotting by ensuring that the post is kept dry when water makes its way into the soil. Place the post in the gravel, then fill it with a batch of cement until it reaches the top of the hole.
How long will a 4×4 post last in concrete?
How Long Will A Treated 4×4 Last In The Ground? (Explained) A treated 4×4 will last 20 to 25 years in the ground if the conditions in the soil and climate are favorable. That number could increase to 40 to 75 years if you install the treated 4×4 in a cement ring rather than the soil.
How long will posts last in concrete?
A PT post will last a long time in concrete, maybe 5 to 10 years in soil alone. I suggest you embed the post in concrete, trowel a peak around the post so water runs off, and don’t let the PT post come in contact with the ground.
How long will a pressure treated post last in the ground?
Generally, if your pressure-treated 4×4 wooden posts are set in concrete or have a stone base, you can have them in good shape for up to 25 years. However, if the post underground is in constant contact with water and moist ground, it might not last more than seven years.
Can you put pressure-treated post in concrete?
With pressure-treated posts, the rot will be slow. We have three ways to solve the rotten post problem. First, the posts should be set on top of a bed of coarse gravel 3 to 6 inches deep, so the base of the post is in contact with the gravel. Concrete should be poured around the post – no concrete under the post.
Can you pour concrete around treated post?
if you bore the hole,fill with concrete and then stick the post in, the post won’t last very long. If you put the post in the hole first then pour concrete around the post while keeping the post very steady, the post will last much longer.
