A PT pole will last a long time on concrete, maybe 5 to 10 years alone on ground. I suggest you embed the pole in concrete, apply a trowel around the pole so that the water runs off, and do not allow the PT pole to come into contact with the ground. That number could rise to 40 to 75 years if you install the treated 4×4 in a cement ring instead of on the ground. Simply placing the poles in concrete creates a condition that will accelerate rotting at the bottom of the poles.
With pressure-treated poles, rotting will be slow. This allows any moisture that gets between the concrete and the bottom of the pole to seep through the gravel and away from the bottom of the pole. Placing deck poles in concrete is a sure way to ask for a lot of work. And in just a few years, depending on local conditions.
He suggested that the crack and leak could be repaired, but warned not to place the new pole in the house. Instead, the pole could be placed in concrete. Treated 4x4 posts are ideal for many uses, such as building a fence, and can last for many years. In general, you can expect your treated 4x4 publication to last 20 years, but they can last longer depending on several factors.
Whether it's pressure treatment or weather conditions, let's take a look at how long you can expect a treated 4x4 pole to last. Concrete fence posts do not require after-sales treatment and require minimal maintenance over their 25-year lifespan. The concrete on top should be tilted from the pole to ground level to prevent water from accumulating around the base. While treated poles that touch the ground and have concrete around them with the bottom of the pole touching the ground last the longest of the three.
Add exactly the amount of clean water indicated on the back of the packaging per bag of Concrete Mix and mix well remembering that excess water ruins good concrete. After digging the pole pit, for example, or forming foundations, make sure that before pouring or placing any concrete or wood in its place, a coarse gravel base of at least several inches is placed on the bottom of the pit or formed area. If completed correctly, several simple practices can extend the life of any pressure-treated wood embedded in concrete. Pressure-treated wood and concrete are two commonly used building materials for outdoor applications.
If a proper coarse gravel bed installation is completed as in step 1, the wood that sits on top of the gravel will be able to drain moisture accumulated in the concrete due to the coarse gravel layer underneath. The use of an anchoring system to join the poles of the wooden deck with the concrete is a more suitable solution for the longevity of the timber. If you are thinking that adding a gravel base, making sure the wood is directly on the gravel with concrete around and tilting the surface are tedious additions in a vain attempt to avoid the inevitable, you are not alone. Submit your peer-reviewed studies to demonstrate that concrete in contact with wood treated with proper pressure preservative causes premature wood decay.
And many to suit different sizes of wood, and these solutions are some of the best options to install between wood and concrete. Again, when laying the pipe, the best is a layer of gravel and be sure to reduce the concrete from the tops of the posts. Placing a thick layer of loose gravel at the bottom of the pole hole will allow groundwater to drip through the rocks and down away from the base of the pole. First, the posts should be placed on top of a coarse gravel bed 3 to 6 inches deep, so that the base of the pole is in contact with the gravel.