Contents

- 1 How many sq ft does an 80lb bag of concrete cover?
- 2 How many bags of quikrete do I need for a 10×10 slab?
- 3 How much does an 80lb bag of concrete weigh when cured?
- 4 How many 80lb bags of concrete do I need for 3 yards?
- 5 Can you pour concrete directly on dirt?
- 6 How much area does a 50 lb bag of quikrete cover?
- 7 Can you use quikrete for a slab?
- 8 Is gravel needed under concrete?
- 9 How much does it cost for a 12×12 concrete slab?
- 10 How much does an 80lb bag of concrete weigh?
- 11 Which is heavier water or concrete?
- 12 Is concrete heavier when dry?
- 13 Is it cheaper to mix your own concrete?
- 14 How many bags of cement do I need for 1 cubic yard?
- 15 How many bags of cement do I need for 1 yard?

## How many sq ft does an 80lb bag of concrete cover?

4 **sq feet** in that amount of **cement**.

## How many bags of quikrete do I need for a 10×10 slab?

A 60-pound **bag** yields. 017 cubic yards, and an 80-pound **bag** yields. 022 cubic yards. For a **10 x 10 slab**, you would need 77 60-pound **bags** or 60 80-pound **bags**.

## How much does an 80lb bag of concrete weigh when cured?

The theoretical cured weight of an 80# bag of concrete sack mix including water would be about **85 lbs**.

## How many 80lb bags of concrete do I need for 3 yards?

An 80# **bag** of pre-mixed **cement**, sand and gravel (**CONCRETE**) is 0.6 cubic foot per the **bag**. There are 27 cubic feet in a cubic **yard**. So 27 / 0.6 = 45 80# **bags**.

## Can you pour concrete directly on dirt?

Long story short, yes **you can pour concrete** over **dirt**.

## How much area does a 50 lb bag of quikrete cover?

One **50-pound bag of Quikrete** Fast Setting **Concrete** Mix yields about. 375 cubic feet. For example, if you need to **cover** 33.333 cubic feet, using 60-**pound** bags of **concrete**, divide 33.333 cubic feet by. 45 cubic feet to get 74.07 total bags of **concrete**.

## Can you use quikrete for a slab?

Concrete is **one** of the most economical, versatile and durable building materials available. Build a sidewalk, patio, or floor with **QUIKRETE** concrete mixes no matter your skill level.

## Is gravel needed under concrete?

Whether you pour **concrete** for a walkway or patio, a strong **gravel** base is required to prevent the **concrete** from cracking and shifting. **Gravel** is especially important in clay soil because it doesn’t drain well, which results in water pooling **under** the **concrete slab** and slowly eroding the soil as it finally drains.

## How much does it cost for a 12×12 concrete slab?

How much does a 12×12 concrete slab cost? The average cost to pour a 12×12 concrete slab that is 4” thick is between **$888** and $1,584, with professional labor and materials included.

## How much does an 80lb bag of concrete weigh?

Registered. An **80-lb bag** of dry **concrete** will **weigh** about 80-lbs mixed.

## Which is heavier water or concrete?

The density of **concrete** varies with its exact composition, but averages around 2,400 kg per cubic meter, or 150lbs per cubic foot. In fresh **water**, the apparent weight would be a little more, 87.6 pounds, because a cubic foot of fresh **water** weighs only 62.4 pounds so provides less upward force.

## Is concrete heavier when dry?

Standard reinforced **concrete** is 150 pounds per cubic foot when **dry**, but there are “light” versions that may be under 100 pounds per cubic foot, or as **heavy** as 300 pounds per cubic foot.

## Is it cheaper to mix your own concrete?

One of the least expensive ways to get **concrete** is to **mix your own**. You can buy bags of the **mix** from a home improvement store. Typically, you only have to add water for it to be ready to pour. Otherwise, you risk getting a weaker **concrete** once it cures, which could lead to cracks or crumbles within a couple of years.

## How many bags of cement do I need for 1 cubic yard?

Pure **cement**, sand and crushed rock all have about the same density, so a block of pure **cement** measuring **1 cubic yard** of volume (about 3,600 pounds) will contain 45 **bags of cement**.

## How many bags of cement do I need for 1 yard?

# It takes approximately 5 **Bags** of Portland **cement**, 8 cubic ft of sand, and 20 cubic ft of gravel to make approximately **1** cubic **yard** (27 cubic feet) of concrete.