Contents
Are concrete form tubes necessary?
Hi JPC, Concrete form tubes are used for pouring concrete above ground, not below. When pouring concrete in a hole in the ground the hole is the only form you need. Like mentioned above, the pour will be stronger if you just pour the concrete straight into the hole.
Can you reuse concrete form tubes?
Reusable Concrete Form The form can be removed after the concrete hardens and it the PVC strips can be cleaned and stored for reuse in the future. The smooth surface of the panels prevents them from bonding to concrete while providing a very smooth finished concrete surface for the column.
What are form tubes used for?
Form Tubes are a single cylindrical heavy-duty cardboard form designed to replace labor-intensive wood forms. It can be used for above or below grade applications for concrete footings, piers, and posts.
Should I put rebar in sonotube?
No, it’s not a problem to leave the Sonotube and its plastic “Square Foot” (like these) in the ground forever. Although they will slightly retard the hydration (loss of water) of the concrete mix, the concrete will achieve enough strength in a few days to build upon. Using Rebar for Concrete Deck Footings.
What’s the best mix for concrete?
In terms of the ratio for concrete, it depends on what strength you are trying to achieve, but as a general guide a standard concrete mix would be 1 part cement to 2 parts sand to 4 parts aggregates. For foundations, a mix of 1 part cement to 3 parts sand to 6 parts aggregates can be used.
What do you use for concrete forms?
Wooden boards have always been the go-to choice for concrete forms. However, not just any boards will do. A contractor must carefully consider the dimensions of the wood they use, otherwise, the results may not meet expectations.
Do you leave sonotube in ground?
No, it’s not a problem to leave the Sonotube and its plastic “Square Foot” (like these) in the ground forever. Although they will slightly retard the hydration (loss of water) of the concrete mix, the concrete will achieve enough strength in a few days to build upon.
Can I leave sonotube in ground?
Absolutely NOT! Sonotubes are not designed to withstand the pressure and weight of collapsing soil and should never be used in this manner.
Do post footings need rebar?
Generally, one stick of rebar per 8 inches of footing width will suffice. If your footings are 16 inches wide, you will need to add two sticks of rebar along the width of the footing; however, if your footings are 24 inches wide, you will need three sticks.
How do you fill a builder’s tube with concrete?
Place: Dig a hole to the desired depth. Place the tube in the hole, filling around the outside to secure. If the tube extends more than 2 feet above the ground line, provide additional support with a collar or wooden frame and side braces. Fill: Be sure the Sonotube® Builder’s Tube® concrete form is dry before filling it with concrete.
How do you cut a concrete form tube?
Mark the desired depth on the outside of the form tube. Stretch a tape measure along the side of the tube and use a carpenter’s pencil to draw a line indicating the depth measurement. You’ll be sawing along this line to cut the tube to the right size.
When to use builders tube-sonotube concrete?
Storage: If temporary storage is necessary, place tubes on an elevated platform at least 4 inches off the ground and cover, allowing circulation of air through the tubes. Sonotube concrete forms, the industry standard for more than 70 years, are respected for their superior strength-to-weight quality and durability.
How much does a concrete form tube cost?
Concrete form tubes typically cost as little as $12 and can spare you the added expense of repairing defective foundation down the line. For most large structures like decks and porches, the diameter of the footing will need to be about double that of the post it will support.