not in most areas, but the best way to be sure is to call your local building inspector.but odds are they will say no. don't worry a well bult cinderblock foundation will bear enormous weight.
metal ones
A Lally Lock column is a concrete filled steel column that does not need to have the cap or base plates welded. The top end of the column is fitted with an embedded fastening unit that will accept a 1/2" screw to fasten the cap plate onto the column. The bottom end it just concrete and can be cut with a pipe cutter. Base plates are fastened with concrete screws.
the 5,000 psi is the amount of pressure the concrete can withstand before it will crush. it has nothing to do with water proofing. to find out if you need water proofing you need to know how poores the concrete is and how quickly the ground out side will drain water. it only takes about 6 psi for water to penatrate most concrete walls, it is more a matter how long the water is alowed to stay against the wall, there for how far through the concrete it can penatrate if you have a good working drain you will most likely never need water proofing. but if you dont own a backhoe it is far cheaper to put it on the outside before the hole is filled.
Yes, cement bricks and concrete bricks can be used together in the same wall construction. However, it's important to ensure compatibility in terms of strength, density, and size to maintain structural integrity. Consulting with a structural engineer or contractor is recommended for best results.
Ah, a concrete plinth is like a sturdy foundation for a beautiful sculpture or artwork to stand upon. It provides support and stability, allowing the artwork to shine and be admired by all who see it. Just like how we all need a solid foundation to stand tall and share our unique beauty with the world.
Yes, if you are constructing this wall with concrete block you will need #5 rebar dowels stubbed out of the foundation at 32" on center. You will also need one #5 rebar running continues in the top course and fill all cells with dowels and top course with either structural grout or concrete.
metal ones
My Astronomy professor says that we need at least 15 feet of concrete to block nuclear radiation.
It depends on what you are trying to repair. There are concrete floor and foundation repair contractors that specialize in this. You can contact them to get the best ideas on how to repair your foundation. You must determine the methods for repairing and the type: slabjacking, concrete repair, mudjacking and concrete piering. You can read more about it at www.concretenetwork.com/concrete/foundation_repair
Yes, a concrete patio step does in fact need to be on a footing. Without the proper footing foundation, the step will be uneven.
Common signs that indicate the need for block foundation repair include cracks in the foundation walls, uneven floors, doors or windows that are difficult to open or close, and water seepage or moisture issues in the basement.
That depends on what the foundation is for and what local law says about. Technically, you don't need any steel, since there are other ways to reinforce concrete.
need concrete cement block 10m*1m*.60m for flag fixing on ground
To calculate the number of concrete blocks needed for a building, you first need to determine the area of one block and then divide the total building area by the block area. Concrete block sizes vary, so you will need to know the dimensions of the block you plan to use. Once you have that information, divide the total building area (25x30) by the block area to find the number of blocks needed.
form_title= Concrete form_header= Redo your home with concrete. What area do you need filled?*= _ [50] What is the square footage of that area?*= _ [50] Do you want to hire a professional to fill the area?*= () Yes () No
Well assuming the depth of concrete is going to be 1 meter you will need 846 cubic meters of concrete.
To securely fasten the structure to the foundation, you will need to use one 3/4 concrete anchor for every 4 feet of the structure's perimeter.