# Can we Put a 6 feet hole in a reinforced concrete slab of 8 inches?

That would depend on where the slab was and what it was doing. How close to a wall is it? What's under the slab? Rock, plumbing? Can you do it? Yes. Should you? Good question. What may happen varies with each slab and circumstance. You may bust it out and find a large rock under it and have to replace it.

### If you drill a hole twenty five feet deep and 8 inches in diameter how much concrete will it take to fill it in?

25 feet is equal to 300 inches. The radius of a hole is half its diameter, which equals 4 inches. The volume of the cylinder is given by the formula v = [Pi]r2h, so the volume of your hole is 3.14 * 16 * 300 = 15080 cubic inches. There are 1728 cubic inches to the cubic foot, so you'll need about 8.75 cubic feet of concrete, which is about a third of a yard…

### How many yards of concrete would it take to fill a 7 foot round by 8 inch deep hole?

A yard (of dirt or concrete) is a volume of 1 cubic yard (1 yd)Â³, as the cubic is assumed in this context. Assuming a circle 7 feet across (diameter), then the radius is 3.5 feet = 1.16667 yards, and 8 inches = 0.2222 yards. So the volume of this is about 0.95 cubic yards. In concrete jargon it would be 0.95 yards.

### What is pier foundation of drilled Caisson foundation?

Not sure of the wording of your question. A drilled casison foundation is typically constructed with an auger that digs a hole in the earth. Reinforcing steel MAY be placed in the hole, which is then poured full of concrete. These may be small- about 8 inches in diameter for a deck on a house- or 10ft wide and 85 feet deep for a bridge we built in CA.

### How many yards of crushed stone does it take to fill 114 inch by 114 inch hole that is 8 inch deep?

The hole is 114 inches (9.5 ft.) by 114 inches (9.5 ft.) by 8 inches (.666 ft.) deep. Therefore the hole is (9.5 x 9.5 x .6666) cubic feet or approx. 60 cubic feet One cubic yard will cover 3ft x 3ft x 3ft = 27 cubic feet Divide the volume of the hole (60 cubic ft.) by the number of cubic feet in a yard (27) to determine the number of yards needed to…

### How much dirt is in a hole that is 19 feet by 6 feet by 1.5 feet in cubic feet?

There is no dirt in the hole, otherwise it would not be a hole! If you want to know how much dirt is required to fill the hole, or, equally, how much dirt has been removed to make the hole, that is the volume of the hole itself, then: The volume of the hole is length x width x height. The height is in inches, so must be converted to feet first: 12 in =…

### What is a cement anchor?

A cement anchor is a general term to describe a fastner that is attached to concrete. Common concrete anchors have a lead tip that mushrooms and "grabs" the concrete. Usually a hole is first drilled into the concrete. Then a concrete anchor is driven into the hole using a hammer. This allows for attaching wood or metal to concrete.

### How many yards of sand to fill a hole 4 feet 3 inches wide and 4 feet 3 inches long and 7 feet deep?

There are 27 cubic feet in a cubic yard. 3 inches = 0.25 feet 4.25 x 4.25 x 7 = 126.4375 cubic feet. 126.4375 / 27 = 4.68287037037037 cubic yards, rounded to one decimal place, 4.7 -- edit-- Assuming that you want to fill the hole with tightly packed sand, and that the sand is bought loosely packed, you'll need to over-estimate the amount, depending on the differences involved.

### How to make a hole in concrete?

Depends on the size hole you need to make and what you need to do with it. If you need to make a large hole in concrete, or totally destroy the concrete, use a jack hammer or even a sledge hammer. Or you could use a drill to drill a small hole in concrete if you need to install a fastener of some type. You can rent special drills with diamond heads at most hardware…

### Is it possible to interconnect two apartments one on top of each other by drilling a large hole in the concrete ceiling and then fitting a spiral staircase?

Technically it's possible, but it needs a lot of knowledge of concrete, and of where exactly the support for the floor is. We are not talking about a small hole, for an average circular staircase, the hole would have to be at least 6 feet diameter. The concrete is likely to be 'stressed', in other words containing steel cables which would make cutting it very difficult. That's a big chunk out of a floor. It…

### How do you figure volume of concrete in a radius auger hole?

1/2 the diameter of the auger bit (that's the radius) squared. Multiply that by pi (3.14 is close enough). That yields the area that the bit impacts. Multiply the area was just determined by the depth of the hole. The answer is the volume of the hole just dug. Be careful that all of the measurements are in the same units (all inches, for example). The volume would then be in cubic units (say, cubic…