How do I estimate a concrete job?

How do I estimate a concrete job?

How to calculate concrete:

1. Determine how thick you want the concrete.
2. Measure the length and width that you'd like to cover.
3. Multiply the length by the width to determine square footage.
4. Convert the thickness from inches to feet.
5. Multiply the thickness in feet by the square footage to determine cubic feet.

Why do they put sand under concrete?

One reason it is used as a backfill or sub-grade material. As with all material, it has to be placed correctly and compacted properly. Sand needs to remain damp as well as other material before placement of the concrete.

Why do I need crushed stone under concrete?

Crushed stone under concrete provides a level surface for you to lay your foundation on. If you pour concrete directly over the ground, it could erode away over time, and this would cause your slab to sink. The solid foundation that the crushed stone provides will offer the support the concrete needs.

What size gravel is best for concrete?

In order to minimize cracking, it is ideal to use a mix design containing aggregates ranging from natural sand, to 1-1/4" at an average of 18-22% of each size by weight. Explanation: 3/4" is typical.

What do I do with old concrete?

Many concrete or landscaping suppliers will accept old concrete. You can usually drop off your concrete at their facilities, where it will be crushed and recycled into new concrete mix and concrete aggregate. This can then be used as gravel and underlayment for paved surfaces like roads and parking lots.

Can I bury concrete in my yard?

You are only likely to get permission to bury concrete if it does not contain steel, paint or metal. ... Some won't allow you to bury concrete, but require you take the concrete to a dedicated waste disposal facility for recycling.

Can you use old concrete?

Uses for Old Concrete Recycled concrete can be used in many of the same ways as you would use new materials, such as gravel, paving materials, and aggregates.