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Customer questions and answers for
Quikrete 80 lb. Concrete Mix

Quikrete 80 lb. Concrete Mix can be used for building or repairing foundation walls, sidewalks, curbs, steps and ramps and for setting posts. This mix designed for pouring concrete 2 in. thick or more. Quikrete 80 lb. Concrete Mix consists of a uniformly blended, properly proportioned mixture of gravel, sand and Portland cement.
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Customer questions and answers for Quikrete 80 lb. Concrete Mix

Question

footer for a retaining wall

Asked by
waterhead
Sulphur Springs,Tx
about 80 lb. Concrete Mix on
February 6, 2016
I have a wall that is 25' long. I want to put a footer under it. The footer is 25'long by 12" depth by 9"in width. How many bag of concrete do I need for the footer.
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QUIKRETEProductExpert
February 8, 2016
An 80 lb bag of QUIKRETE® Concrete Mix yields 0.6 cubic feet of concrete. A footer that is 25 ft x 1 ft (12 inch) x 0.75 (9 inch) will require 18.75 cubic feet of concrete, or 31 ¼ bags (of 80 lb each). Yields will vary based upon waste, uneven subgrade, etc.
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Question

How many sender blocks will one bag fill

Asked by
Fuzz
about 80 lb. Concrete Mix on
February 5, 2016
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answer 1
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QUIKRETEProductExpert
February 8, 2016
QUIKRETE® Core Fill Grout – Coarse 1585-07, and QUIKRETE® Core Fill Grout – Fine 1585-08 are specifically designed to be used for filling the cores of cinder blocks (aka concrete blocks). The Fine is typically used for more confined spaces, such as when rebar is present. QUIKRETE® Concrete Mix is not intended to be used to fill the cores of blocks. QUIKRETE® Sand Topping Mix, 1103 is another alternative - to use, please call the QUIKRETE® Technical Center at 1-800-282-5828 to discuss this option in further detail.
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Question

How many 80 pound bags do I need if I'm making a path of 18 ft x 2 ft x 3" deep

Asked by
Nero
about 80 lb. Concrete Mix on
February 3, 2016
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answer 1
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QUIKRETEProductExpert
February 4, 2016
An 80 lb bag of QUIKRETE® Concrete Mix yields 0.6 cubic feet of concrete when placed. An application that is 18 ft x 2 ft x 0.25 ft (3 inch) will require 9 cubic feet of concrete, or 15 bags (of 80 lb each). Yields will vary based upon waste, uneven subgrade, etc.
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Question

How many 80# bags for an area 3 feet wide x 10 feet long x 4" thick?

Asked by
thetazva
Richmond, Va
about 80 lb. Concrete Mix on
February 3, 2016
How many 80# bags for an area 3 feet wide x 10 feet long x 4" thick?
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answer 1
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QUIKRETEProductExpert
February 4, 2016
An 80 lb bag of QUIKRETE® Concrete Mix yields 0.6 cubic feet of concrete when placed. An application that is 3 ft x 10 ft x 0.33 ft (4 inch) will require 10 cubic feet of concrete, or 17 bags (of 80 lb each). Yields will vary based upon waste, uneven subgrade, etc.
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answer 2
Asked by
CommunityAnswer
February 9, 2016
You will need (17) 80 lb bags for that area.
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Question

Dock Repair?

Asked by
Fisherman
about 80 lb. Concrete Mix on
February 2, 2016
I have an old dock on a lake that needs repair. The poles holding up the deck have uprooted. Would this concrete work underwater? I can't drain it, nor is the water clean of algae and mud.
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answer 1
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QUIKRETEProductExpert
February 4, 2016
There are ways to place concrete underwater for dock posts. Please call the QUIKRETE® Technical Center directly at 1-800-282-5828 to discuss your project further.
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Question

How many bags of Quikrete will I need for a 6'x10' @ 4" deep and a 8'x18' @ 4" deep?!?

Asked by
Steven
about 80 lb. Concrete Mix on
February 1, 2016
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answer 1
Asked by
QUIKRETEProductExpert
February 3, 2016
An 80 lb bag of QUIKRETE Concrete Mix yields 0.6 cubic feet of concrete when placed. A 6 ft x 10 ft x 0.33 ft (4 inch) slab will require 20 cubic feet of concrete, or 33 1/3 bags (of 80 lb each). A 8 ft x 18 ft x 0.33 ft (4 inch) slab will require 48 cubic feet of concrete, or 80 bags (of 80 lb each). The total required will be bags (of 80 lb each). Yields will vary based upon waste, uneven subgrade, etc.
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Question

How many 80 lb bags of concrete for a 10" sonotube 6' long?

Asked by
Justnice
Hartford, CT
about 80 lb. Concrete Mix on
February 1, 2016
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answer 1
Asked by
QUIKRETEProductExpert
February 2, 2016
An 80 lb bag of QUIKRETE® Concrete Mix yields 0.6 cubic feet of concrete. To fill a 6 foot long 10 inch diameter tube will require 3 ¼ cubic feet of concrete, or 5 ½ bags (of 80 lb each). Yields will vary based upon waste, compaction, water content, etc.
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Question

Concrete wall

Asked by
Daniel
about 80 lb. Concrete Mix on
February 1, 2016
Wall is 59 ft long, 28 in high and 6 in wide. I can't seem to figure it out, I know if I only do 24 in tall I have 59 CF which according to cf to sf its like 15.15 sf which don't make since.
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answer 1
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QUIKRETEProductExpert
February 1, 2016
For a solid concrete wall that is 59’x28”x6” you would need approximately 68.8 cubic feet, if you reduced the height to 24” you would need approximately 59 cubic feet. An 80 lb bag of QUIKRETE® Concrete Mix yields 0.6 cubic feet of concrete. The number of bags needed for these two cases would be 115 bags for the 28” high wall and 99 for the 24” high wall. The square footage of the walls would be ~137.7 square feet for the 28” high wall and ~118 square feet for the 24” wall. Yields will vary based upon waste, uneven subgrade, etc.
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Question

How many bags of 80lb concrete mix I need for 5ft by7ft

Asked by
Tampa
Valdosta ga
about 80 lb. Concrete Mix on
January 29, 2016
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answer 1
Asked by
QUIKRETEProductExpert
February 1, 2016
An 80 lb bag of QUIKRETE® Concrete Mix yields 0.6 cubic feet of concrete. The number of bags needed for an area that is 35 square feet (5 ft x 7 ft) will depend upon the depth intended. A standard slab is 0.33 ft (4 inch) thick. A slab of this thickness will require 11 2/3 cubic feet of concrete, or 20 bags (of 80 lb each). Yields will vary based upon waste, uneven subgrade, etc.
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Question

My masonry used it to replace my chimney cap in cold weather (35 F day, 27 F night). Would it set right? Thanks.

Asked by
Jenny
about 80 lb. Concrete Mix on
January 29, 2016
It was in January and above freezing during the day, but below at night. I was worried and he said no ptoblem. He only covered it with tarp for one night.
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answer 1
Asked by
QUIKRETEProductExpert
February 1, 2016
QUIKRETE® recommends that regular setting concrete, such as QUIKRETE® Concrete Mix, be protected from freezing for at least 3-4 days using plastic sheeting, insulated blankets, or other means. If concrete freezes while it is still fresh or before it has developed sufficient strength, it will not achieve its ultimate design strength – early freezing has the potential to reduce the strength by up to 50 percent. Please contact the QUIKRETE® Technical Center directly at 1-800-282-5828 to discuss in greater detail.
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Question

How many cubic feet per bag

Asked by
julie
about 80 lb. Concrete Mix on
January 28, 2016
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answer 1
Asked by
QUIKRETEProductExpert
January 29, 2016
An 80 lb bag of QUIKRETE® Concrete Mix yields 0.6 cubic feet of concrete when placed. Yields will vary based upon waste, uneven subgrade, etc.
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answer 2
Asked by
CommunityAnswer
February 3, 2016
Each bag yields .6 cubic feet.
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Question

concrete needed for footing.

Asked by
izzy
houston tx
about 80 lb. Concrete Mix on
January 27, 2016
How many bags of 80lbs do I need to pour a 35ft long x 8" wide x 12" deep footing?
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answer 1
Asked by
QUIKRETEProductExpert
January 28, 2016
An 80 lb bag of QUIKRETE® Concrete Mix yields 0.6 cubic feet of concrete when placed. A footer that is 35 ft x 0.67 ft (8 inch) x 1 ft (12 inch) will require 23 1/3 cubic feet of concrete, or 39 bags (of 80 lb each). Yields will vary based upon waste, uneven subgrade.
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Question

12" Tube and 1 80# bag ?

Asked by
Max
Lafayette, La
about 80 lb. Concrete Mix on
January 26, 2016
How much in inches will 1 80# bag fill in a 12" tube?
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answer 1
Asked by
QUIKRETEProductExpert
January 27, 2016
An 80 lb bag of QUIKRETE® Concrete Mix yields 0.6 cubic feet of concrete. It will fill a 12 inch diameter tube that is between 9 and 10 inches in length. To fill 1 foot (12 inches) of a 12 inch diameter tube, approximately 1 1/3 bags (of 80 lb each) would be required. Yields will vary based upon waste, compaction, water content, etc.
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Question

How many 80 LB. bags of concrete?

Asked by
JSINC
Hillsboro, OR
about 80 lb. Concrete Mix on
January 25, 2016
I have a hole that is 2 feet deep and 15" in diameter. How many bags of 80 LB. concrete mix will I need to fill it?
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answer 1
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QUIKRETEProductExpert
January 26, 2016
An 80 lb bag of QUIKRETE® Concrete Mix yields 0.6 cubic feet of concrete when placed. A hole that is 1.25 ft in diameter (15 inches) and 2 ft deep will require 2.5 cubic feet of concrete, or 4 bags (of 80 lb each) to fill. Concrete must be mixed with water before being placed, and prevented from freezing for 3-4 days in cold temperatures. Yields will vary based upon waste, uneven subgrade, etc.
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answer 2
Asked by
CommunityAnswer
February 7, 2016
You will need 4-5 bags to fill that hole.
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Question

How meany 80# bags of quilters will I need to fill a 7'x11'x2" hole

Asked by
Jeanne
about 80 lb. Concrete Mix on
January 24, 2016
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answer 1
Asked by
QUIKRETEProductExpert
January 26, 2016
An 80 lb bag of QUIKRETE® Concrete Mix yields 0.6 cubic feet of concrete when placed. A hole that is 7 feet x 11 feet x 0.167 feet (2 inches) will require 12.8 cubic feet of concrete, or 21-22 bags (of 80 lb each). Yields will vary based upon waste, uneven subgrade, etc.
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Question

How many bags to make 1 cubic yard?

Asked by
rolara
about 80 lb. Concrete Mix on
January 21, 2016
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answer 1
Asked by
QUIKRETEProductExpert
January 22, 2016
An 80 lb bag of QUIKRETE® Concrete Mix yields approximately 0.6 cubic feet of concrete. One cubic yard is 27 cubic feet, which would require 45 bags (of 80 lb each) of QUIKRETE® Concrete Mix. Yields are approximate and will vary based upon waste, uneven sub-grade, etc.
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answer 2
Asked by
CommunityAnswer
January 31, 2016
45 bags of this concrete mix will make 1 cubic yard.
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Question

How many 80 lbs bags do I need to fill a 6ft x 12ft x 1ft hole?

Asked by
rookie
Grandville, MI
about 80 lb. Concrete Mix on
January 21, 2016
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answer 1
Asked by
QUIKRETEProductExpert
January 21, 2016
An 80 lb bag of QUIKRETE® Concrete Mix yields 0.6 cubic feet of concrete. To fill a hole that is 6 ft x 12 ft x 1 ft will require 72 cubic feet of concrete, or 120 bags (of 80 lb each). Yields will vary based upon waste, uneven subgrade, etc.
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answer 2
Asked by
CommunityAnswer
January 30, 2016
You will need 120 80-lb bags for your project.
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Question

I have a 10×14 , 4 inches deep how many bags of 80 lbs concrete ready mix will I need

Asked by
joe
about 80 lb. Concrete Mix on
January 20, 2016
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answer 1
Asked by
QUIKRETEProductExpert
January 21, 2016
An 80 lb bag of QUIKRETE Concrete Mix yields 0.6 cubic feet of concrete. An application that is 10 ft x 14 ft x 4/12 ft (4 inches) will require 46 2/3 cubic feet of concrete, or 78 bags (of 80 lb each). Yields will vary based upon waste, uneven subgrade, etc. For a job of this size, it will be crucial that you have sufficient equipment and man power to either allow you to pour the entire application before any of the material has set, OR pour sections that are separated by expansion joints before any of the material in that section has set. If some of the material sets before subsequent bags are poured, a cold joint will form. A cold joint is caused by the inability of the product to intermix between bags, and prevents the application from being a single, solid mass. A cold joint may cause problems ranging from a simple aesthetic issue, to as serious as potentially allowing for water intrusion into the cold joint, which may eventually lead to concrete degradation. Additionally, if the concrete is being applied in cold weather (temperatures around 50 dF in the day, and near freezing (32 dF) at night), you must take cold weather precautions. Store the bagged concrete in a warm temperature before use, and use warm (not hot) water to mix. Protect the concrete from freezing for at least 3-4 days for a regular setting concrete using plastic sheeting, insulated blankets, or other means. If these preventive measures cannot be taken, it would be best to wait for warmer weather. Please contact the QUIKRETE® Technical Center directly at 1-800-282-5828 if you would like to discuss.
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Question

how many bags to makes a yard

Asked by
joe
about 80 lb. Concrete Mix on
January 20, 2016
how many bags make a yard
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answer 1
Asked by
QUIKRETEProductExpert
January 21, 2016
An 80 lb. bag of QUIKRETE® Concrete Mix yields approximately 0.6 cubic feet of concrete. One cubic yard is 27 cubic feet, which would require 45 bags (of 80 lb each) of QUIKRETE® Concrete Mix. Yields are approximate and will vary based upon waste, uneven sub-grade, etc.
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Question

Is there a formula for determining how many bags you will need for a given project? I have a sidewalk im doing.

Asked by
butch
about 80 lb. Concrete Mix on
January 19, 2016
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answer 1
Asked by
QUIKRETEProductExpert
January 20, 2016
Yes – to determine the number of bags which will be needed, determine how many cubic feet you need by multiplying the length x the width x the depth of your project, then divide by 0.6 (the yield of an 80 lb bag of QUIKRETE® Concrete Mix). All of the dimensions need to be in feet. To convert inches to feet, divide by 12. For example, if you have a sidewalk that is 36 inches long, 30 inches wide, and 4 inches deep, your formula would be: (36÷12 x 30÷12 x 4÷12) ÷ 0.6 = (3 x 2.5 x 0.33) ÷ 0.6 = 2.475 ÷ 0.6 = 4.125. Since it will require more than 4 bags, 5 bags will be needed. Yields will vary based upon waste, uneven subgrade, etc. You may also access the QUIKRETE® Concrete Mix calculator at http://www.quikrete.com/Calculator/Main.asp, or download the QUIKRETE® mobile app at http://www.quikrete.com/App/.
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