What Is A Monolithic Concrete Slab Foundation?
What Is A Monolithic Concrete Slab Foundation?
A monolithic concrete slab foundation is a type of foundation where a single slab of concrete is used to support the weight of the building. The slab is typically poured on site and forms the entire foundation for the building.
Monolithic Concrete Slab Foundation is pouring of a single layer of concrete to build a slab and footing forms a monolithic concrete slab foundation. Contractors prefer the monolithic idea because it reduces labor costs and speeds up the construction process compared to other foundation types.
A typical monolithic slab foundation has a footing that is 12 to 18 inches thick and a slab that is 4 to 6 inches thick. To build a monolithic foundation, proper site preparation and concrete reinforcing with rebar and wire are necessary.
A monolithic foundation has several advantages over a standard foundation. Among the benefits are the following:
- Quick and simple construction: After the perimeter trench has been added and the gravel has been spread out, the concrete floor pouring may begin.
- This foundation dries faster than any other foundation on the market.
- A solid foundation: This foundation is solid as long as anchor bolts and reinforcements are properly fitted.
- Low-maintenance: A monolithic foundation requires just periodic inspections to ensure there are no fractures in the foundation.
- Energy-efficient: Because there is no gap between the house and the ground, less energy is lost. Air does not pass through the subfloor.
What Is The Concrete PSI For A Foundation?
Foundation design is a critical part of any home construction project, and that includes the concrete that will be used to support the structure. Foundation concrete needs to be strong enough to support the weight of the home, as well as any additions or modifications that may be made to the home in the future.
In most cases, foundation concrete will be required to have a concrete pressure of 3,500 to 4,000 psi. This is typically the pressure required for footings and slabs on grade, suspended slabs, beams, and girders.
However, foundation concrete can also be designed to have a pressure of 3,500 to 5,000 psi, depending on the type of structure being built.
Traditional concrete walls and columns typically have a pressure range of 3,000 to 5,000 psi. This is enough pressure to support a variety of building applications, including walls, columns, and pavements. 4,000 to 5,000 psi is also necessary for some types of construction, such as bridges.
If you are planning on using foundation concrete, be sure to inquire about the pressure requirements for the specific type of structure you are planning on building. This information will help ensure that the foundation concrete will be strong and capable of supporting the weight of your home.
How Do You Attach A Ledger Board To A Concrete Foundation?
When mounting a ledger board to a brick wall, first cut it to size and have two assistants hold it in place while you drill two holes every 12″ into the wood where your bolts will be put. With a pencil, mark these areas on the wall.
You may now use a hammer drill with a masonry bit to drill holes through the wall into the basement or crawl area. Then, just align the board with the brick’s holes and screw in the bolts. Install expansion anchors with a minimum diameter of 12″ and put into the wall at least 2 12″ when attaching to solid masonry.
When drilled, hollow concrete blocks are prone to breaking and do not provide appropriate bearing support for anchors.
If you’re connecting to a hollow masonry wall, you can fill the cells with grout and utilize expansion anchors, or you can place epoxy anchors to a minimum depth of 4 14″ in accordance with the manufacturer’s installation recommendations. Here is how to do it;
Set Your Bolt.
Using a tape measure and a construction pencil, mark out your bolt placements. The bolt pattern will change based on the length of the joist. Bolts should be spaced 2″ apart and staggered between joists on the ledger board.
Provide Temporary Support For The Ledger.
Use concrete screws or temporary supports to temporarily fix the ledger board to the right place against the concrete wall.
Drill 12″ pilot holes through the ledger board with a wood bit. Next, drill through the concrete wall using a concrete bit.
Put In Your Sleeve Anchors.
At the end of each ledger board, screw in two bolts. Hammer the sleeve anchor into the concrete wall via the ledger board.
Carefully Tighten The Bolts.
Tighten the bolts by hand with a ratchet. Avoid over-tightening.
Apply A Bead Of Silicone.
Apply a large bead of silicone to the top of the ledger facing the house.
Foundation Attachment Ledger Detail.
Seal the aperture with silicon caulk on both the inside and outside of the wall, or wherever needed.
Before attempting to connect a ledger board to a brick wall, always check with your local building inspector.
You may wish to avoid the bother and unpredictability of attaching to a stone wall in some instances. Remember that you may always add frost footings and posts beside the house to support the deck without attaching it to the house.