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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

Can i use it this in a fire place?

Asked by
ghaazi
frisco
about 80 lb. Concrete Mix on
May 25, 2015
The fireplace can reach a temperature of more than 900 C or 1650 F
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answer 1
Asked by
QUIKRETEProductExpert
May 27, 2015
No, Portland cement, the base material out of which standard concretes are made, can degrade in temperatures as low as 200 degrees F. Because of this, products used within the firebox of a fireplace, or near high temperatures, should be made of refractory cement, which is designed to be able to withstand exposure to high temperatures, rather than Portland cement. Only if the material is being used on the fireplace façade, far enough away from the firebox that it will NOT be exposed to these high temperatures, can the QUIKRETE® Concrete Mix be used.
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answer 2
Asked by
CommunityAnswer
May 26, 2015
No, this concrete is not rated for use in a fireplace.
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Question

I want to know how many is the weight of cement,sand,gravel in a bag respectively

Asked by
YIn
about 80 lb. Concrete Mix on
October 13, 2015
I want to know how many is the weight of cement,sand,gravel in a bag respectively?
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answer 1
Asked by
QUIKRETEProductExpert
October 15, 2015
The mix design of QUIKRETE® Concrete Mix is proprietary. The formula varies regionally based upon raw materials available in the area, to obtain consistent performance. It exceeds the compressive strength requirements for normal strength concrete as described in ASTM C 387. When laboratory tested it will achieve a typical 28 day compressive strength of 4,000 PSI. It is typically a 5 sack mix.
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answer 2
Asked by
Calculator
PA
Home Improvement Profile: Professional
November 26, 2015
Based on the answer from Quikrete, the amount of Portland in the mix is approximately 10.4 lbs.

1 yard = 27 cuft
5 sacks of Portland = 470 lbs
470 / 27(cuft in a yard) = 17.4 lbs / cuft
17.4 *.6 (amount of concrete in one 80lb bag) = 10,44 lbs of Portland in one 80lb bag of Quikrete
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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 sq feet does one 80lbs bag cover

Asked by
bobyjim
about 80 lb. Concrete Mix on
October 23, 2013
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answer 1
Asked by
QUIKRETEProductExpert
October 25, 2013
One 80 lb. bag of QUIKRETE Concrete Mix yields approximately 0.6 cubic feet, so a single bag will cover approximately 1 ¾ square feet if placed 4 inches (0.34 feet) thick. This is an estimate and will vary based upon waste and uneven sub-grade.
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Question

Can I mix sand with quikrete to make a base for the gravel between the rocks in my new patio?

Asked by
calgirl
Whitney, NE
about 80 lb. Concrete Mix on
July 14, 2014
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answer 1
Asked by
Blueridge
Blacksburg, VA, USA
July 15, 2014
No. Quikrete is premixed at the right ratio of portland cement, sand and aggregate. Adding more sand would change the ratio to the point where you would not get "concrete".
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answer 2
Asked by
QUIKRETEProductExpert
July 16, 2014
The QUIKRETE® Concrete Mix is a preblended mixture of sand, rock, and cementitious materials. The addition of any materials beyond the specified water quantity will affect the properties of the mixture. This may not be the product that will best suit your needs, we recommend that you discuss your project with your local Home Depot representative at the Pro Desk or call QUIKRETE® directly.
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Question

How many 80 LB. bags do I need

Asked by
Cynon
about 80 lb. Concrete Mix on
July 11, 2014
Hi, I am setting cedar fence posts for a barbed wire fence.
My holes are 12in diameter and they are on average 4ft deep
My posts are 8in diameter and 9 feet long.
How many bags of 80 LB concrete mix do I need per hole?
Thank you
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answer 1
Asked by
QUIKRETEProductExpert
July 14, 2014
An 80 lb. bag of QUIKRETE® Concrete Mix yields approximately 0.6 cubic feet of concrete. A 12 in. Diameter x 4 ft. deep hole that has a post in it that has an 8 in. diameter going the full depth will require approximately 1.75 cubic feet of concrete, or approximately 3 80 lb. bags of Concrete Mix per hole. Yields are approximate and will vary based upon waste, uneven sub-grade, etc.
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answer 2
Asked by
Blueridge
Blacksburg, VA, USA
July 15, 2014
Assuming a 6" diameter post, you would need four bags per hole. However, your post may be larger and you would need less, or smaller and you would need more. Also, four feet of concrete is a massive amount, and you could probably get good results with two or three feet of concrete then a foot of two of tamped backfill dirt.
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Question

how many 80lb. bag of concrete mix to fill a 11ft. x 11ft. x 2" area

Asked by
dad
about 80 lb. Concrete Mix on
September 3, 2015
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answer 1
Asked by
QUIKRETEProductExpert
September 3, 2015
An 80 lb bag of QUIKRETE® Concrete Mix yields 0.6 cubic feet of concrete. An 11 ft x 11 ft x 0.167 ft (2 inch) volume will require 20 ¼ cubic feet of concrete, or 34 80 lb bags. A typical slab is 0.33 ft (4 inch) which would reuire double that quantity. Yields will vary based upon waste, uneven subgrade, etc.
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answer 2
Asked by
CommunityAnswer
September 4, 2015
You would need 34 bags of Quickcrete for that sized slab.
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Question

in 1 80 # bag of concrete mix, what is the volume of finish product ?

Asked by
cris
chicago
about 80 lb. Concrete Mix on
July 10, 2014
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answer 1
Asked by
QUIKRETEProductExpert
July 11, 2014
An 80 lb. bag of QUIKRETE Concrete Mix yields approximately 0.6 cubic feet of concrete. Yields are approximate and will vary based upon waste, uneven sub-grade, etc.
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answer 2
Asked by
Blueridge
Blacksburg, VA, USA
July 15, 2014
An 80 pound bag yields approximately .6 cubic feet of product. A rough rule of thumb is that you need 150 pounds of concrete per cubic foot of your design. So, a walkway that is 4" thick, 4' wide and 8' long would be 18,432 cubic inches or 10.67 cubic feet, needing a rough estimate of 1,600 pounds of concrete.
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Question

The ad says a discount is available for 82 sacks or more (2 pallets). What is the discount offered for plus 84?

Asked by
fxrupr
Dallas, Tx
about 80 lb. Concrete Mix on
January 8, 2014
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answer 1
Asked by
THDCustomerSupport
Kennesaw, GA
January 9, 2014
Thank you for your recent inquiry with The Home Depot. Because this item is only available in Home Depot stores, I believe the best advice would be to talk to one of our many specialty department professionals at your local Home Depot store. For any other questions, please visit your nearest local Home Depot store.
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answer 2
Asked by
QUIKRETEProductExpert
September 25, 2014
Please call your local Home Depot store for assistance.
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Question

How many 80 pound bag of concrete is needed to fill a 48 square feet form that is 2" deep?

Asked by
Backyard
Syracuse, New York
about 80 lb. Concrete Mix on
June 16, 2014
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answer 1
Asked by
QUIKRETEProductExpert
June 16, 2014
An 80 lb. bag of QUIKRETE Concrete Mix yields approximately 0.6 cubic feet of concrete. For a 48 sq. ft. slab that is 0.167 ft. (2 inches) thick, approximately 8 cubic feet of concrete, or approximately 13-14 80 lb. bags of concrete mix would be required. Note that a standard slab is typically 0.34 ft. (4 inches) thick, which would require twice as much concrete. Yields are approximate and will vary based upon waste, uneven sub-grade, etc.
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answer 2
Asked by
Blueridge
Blacksburg, VA, USA
June 29, 2014
About 14 bags.
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Question

A patio 12' X 16' X 4" would need how many 80# bags?

Asked by
Pat
Sterling, CO.
about 80 lb. Concrete Mix on
September 8, 2013
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answer 1
Asked by
Kallender
September 12, 2013
Hi Pat, you will need 108 bags of 80 pound concrete. That's a lot of mixing. Here check out the Quikrete calculator.

http://www.quikrete.com/Calculator/Main.asp
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answer 2
Asked by
QUIKRETEProductExpert
September 18, 2013
A bag of 80 lb QUIKRETE Concrete Mix yields approximately 0.6 cubic feet of concrete. A 12 foott x 16 foott x~ 0.33 foott (4 inches) requires approximately 64 cubic feet of concrete, or ~107 80 lb bags of QUIKRETE Concrete Mix. This is an estimation, and will vary based upon waste, uneven sub-grade, etc.
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Question

How many bags or concrete 80 pounds do I need to feel up 23' x 6' x 4" deep

Asked by
Rey73
Rex ga
about 80 lb. Concrete Mix on
May 2, 2014
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answer 1
Asked by
QUIKRETEProductExpert
May 8, 2014
An 80 lb. bag of QUIKRETE Concrete Mix yields approximately 0.6 cubic feet of concrete. To fill 23 ft x 6 ft x 0.34 ft (4 inch) would require approximately 47 cubic feet of concrete, or approximately 78 - 79 80 lb. bags 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
ChrisFixit
May 5, 2014
Hello Rey73,

You will need 78 bags of 80lb concrete to fill the area. When calculating concrete the first step is to figure out the square footage using the formula of "length x width", in this case it being 138sq ft.

Quikrete has a number of product calculators on their site which are of great use here: http://www.quikrete.com/Calculator/...

I hope this helps.

Cheers,
Chris
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Question

How many 80 IB bags of Concrete will I need to do a 10 x 20 patio?

Asked by
Nick1
Lumberton Nc
about 80 lb. Concrete Mix on
April 17, 2014
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answer 1
Asked by
QUIKRETEProductExpert
April 21, 2014
A standard concrete slab is 4” (0.34 feet) thick. An 80 lb. bag of QUIKRETE concrete mix yields approximately 0.6 cubic feet. A 10 ft x 20 ft x 0.34 ft patio will require approximately 68 cubic feet of concrete, or approximately 114 80 lb. bags. Yields are approximate and will vary based upon waste, uneven sub-grade, etc.
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answer 2
April 17, 2014
Figuring out a area of 10 feet by 20 feet by 4 inches thick, you need 100 bags of 80lbs, 134 bags of 60lbs, or 200 bags of 40lbs.
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Question

do you recommend setting a treated wooden post in quikcrete?

Asked by
Coastie
about 80 lb. Concrete Mix on
October 26, 2014
Should I prep the wood before setting?
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answer 1
Asked by
JosephHDATL
Orange,Calfornia
Home Improvement Profile: Professional
October 29, 2014
Setting a pressure treated wooden post in Quikrete is fine, just make sure it is installed properly and the wood is not too wet before setting it.

Joseph
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answer 2
Asked by
QUIKRETEProductExpert
October 30, 2014
Any wood that is going to be set in concrete should be classified as “rot resistant wood”. Certain woods are naturally more rot resistant than other types, while some woods, sure as pine, must be treated to be considered rot resistant. Contact your local Home Depot store for assistance in determining what rot resistant wood is available in your area. Note that is you are using QUIKRETE Concrete Mix #1101 to set posts, the concrete must be blended with clean water before it is placed. QUIKRETE Fast Setting Concrete Mix #100450 is the only product for setting posts that can be added to the hole dry, then have water poured onto the dry mix until the powder is saturated with water as per instructions. Even the Fast Setting Concrete Mix, if being used for any application other than setting posts, must be blended with clean water before being placed.
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Question

how many bags of concrete mix will I need for 900 sq ft area,

Asked by
Touka
about 80 lb. Concrete Mix on
July 29, 2013
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answer 1
Asked by
QUIKRETEProductExpert
August 2, 2013
An 80 lb bag of QUIKRETE Concrete Mix yields approximately 0.6 cubic feet. Standard slabs are typically 4 inches (0.34 feet) thick. For a 900 square foot area, 4 inches thick, approximately 306 cubic feet of concrete, or 510 80 lb bags will be needed. This is an estimate and will vary based upon waste, uneven sub-grade, etc.
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answer 2
Asked by
Kallender
August 1, 2013
Hi Touka, 900 square feet is a decent size area. If you are pouring a 4 inch slab you will need 505 bags of 80 pound quikrete. If you pour a 6 inch slab, you will need 748 bags of 80 pound quikrete. That is a lot of work. It would be a lot easier to have it trucked in.
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Question

i will be pouring a 6 inch by 6 inch by 48 ft long curb how many 60 lb bags?

Asked by
ed
gainesville ga
about 80 lb. Concrete Mix on
July 11, 2013
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answer 1
Asked by
QUIKRETEProductExpert
July 26, 2013
A 60 lb. bag of QUIKRETE Concrete Mix yields approximately 0.45 cubic feet per bag. A 6 inch (0.5 ft) x 6 inch (0.5 ft) x 48 feet application would require approximately 12 cubic feet of concrete, or approximately 27 60 lb bags. This is an estimate and will be affected by uneven sub-grade, waste, etc.
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answer 2
Asked by
DesigningWoman
July 12, 2013
Hello ed and thank you for your question.

Your area as calculated is 24 square feet. You will need a total of 1152 lbs of concrete which is 20 of the 60 lb bags or 15 of the 80 lb bags of concrete mix.

Best wishes on your project.
 
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Question

How many bags are needed for 12" X 48" sonatube?

Asked by
AmHMS
Billerica, MA
about 80 lb. Concrete Mix on
May 5, 2015
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answer 1
Asked by
QUIKRETEProductExpert
May 6, 2015
An 80 lb bag of QUIKRETE Concrete Mix yields 0.6 cubic feet of concrete. A sonatube that is 12” in diameter and 48 inches long will require 3.14 cubic feet of concrete, or between 5 and 6 80 lb bags. Yields will vary based upon waste, compaction,etc.
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answer 2
Asked by
char
Chicago Illinois
May 5, 2015
Hello AmHMS,

You would need 4.375 -80lb bags or 7 - 50lb. bags of fast setting concrete.

Thanks for the inquiry.
Charlotte
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Question

Pouring a sidewalk - 173" long, 30" wide, 3.5" deep. I want to section it off and pour in slabs.

Asked by
joey5abc
Pittsburgh, Pa.
about 80 lb. Concrete Mix on
August 31, 2015
Disregard my previous question on this. My measurements were incorrect. If I pour say 50" slabs, how many bag would be needed per slab? The last slab would be 23" in length. How many bags per slab would be needed? Pic shows the framing but no dividers placed yet.
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answer 1
Asked by
QUIKRETEProductExpert
September 1, 2015
An 80 lb bag of QUIKRETE® Concrete Mix yields 0.6 cubic feet of concrete. For each section of the sidewalk that is 2.5 ft (30 inch) wide x 4.17 ft (50 inch) long and 0.29 ft (3.5 inch) thick, 3 cubic feet of concrete, or 5 80 lb bags would be required. Three sections of these dimensions would require 9+ cubic feet of concrete, or 15.2 80 lb bags. The final section that is 2.5 ft (30 inch) wide x 1.92 ft (23 inch) long and 0.29 ft (3.5 inch) thick would require 1.4 cubic feet or 2 1/3 80 lb bags. The total length would therefore require 10 ½ cubic feet of concrete, or 17 ½ 80 lb bags. Sidewalks should be at least 4 inches in thickness, which would require a total of 20 80 lb bags. Be sure to check local building codes to ensure compliance. Yields will vary based upon waste, uneven subgrade, etc.
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answer 2
Asked by
Metalman
September 5, 2015
Google quikrete calculator and it goes to quikrete's calculator

Just a pointer I noticed while looking at your forms, I would put stakes every 2 -3 feet and set them below your forms so when you screed the cement they are not in your way. Good luck!
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Question

How many cubic feet does one 80 pound bag of quickrete contain?

Asked by
Larry
about 80 lb. Concrete Mix on
October 13, 2013
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answer 1
Asked by
QUIKRETEProductExpert
October 16, 2013
An 80 lb bag of QUIKRETE Concrete Mix yields approximately 0.6 cubic feet of concrete when mixed with water. This is an estimate and will vary based upon waste, uneven sub-grade, etc.
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Question

How many bags of concrete will i need to fix my stairs?

Asked by
vader
Kansas City
about 80 lb. Concrete Mix on
June 27, 2013
I have a walk way that is cracking. The walk way is 3.5ft.x15ft.x2in. How many bags of concrete will I need to fix them?
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answer 1
Asked by
QUIKRETEProductExpert
June 28, 2013
It is not clear if you plan on removing the existing walkway in its entirety, or whether you simply have areas that need repairs. An 80 lb bag of QUIKRETE Concrete Mix yields approximately 0.6 cubic feet of concrete. To replace the walkway in its current dimensions would require between 8 to 9 80 lb bags. Sidewalks are more commonly 4 inches thick, which would require 17.5 80 lb bags. These estimates are approximate, and will vary based upon waste, uneven subgrade, etc. If you instead plan on repairing the walkway, depending upon the damage, different products will be appropriate for repair. QUIKRETE Vinyl Concrete Patcher is designed for making repairs to small areas of concrete surfaces which are cracked, chipped, or spalled. It is not intended to be used for deep patches or large areas. QUIKRETE Commercial Grade FastSet Repair Mortar is a polymer modified, rapid setting repair material specially formulated to make structural repairs to any concrete or masonry surface, horizontal or vertical. It can be built up to at least 1 ½” in a single application. Once you make the necessary repairs, you may consider top coating the entire walkway (while maintaining the control joints) with QUIKRETE Sand / Topping Mix. If the majority of the area will require an application that is at least 1 inch thick, it is suggested that QUIKRETE Bonding Adhesive be used to coat the clean, unsealed, prepped surface before applying the Sand/Topping Mix. If the majority of the area will require an application that is less than 1 inch thick, it is suggested the QUIKRETE Concrete Acrylic Fortifier be blended with the Sand/Topping Mix, to replace a portion of the water, before applying the Sand/Topping Mix to the clean, unsealed, prepped surface.
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