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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

How many 80 lb bags of concrete mix do i need to repour a 4' x 4' x 12" area

Asked by
Leggs
Walton, Ky
about 80 lb. Concrete Mix on
September 19, 2014
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answer 1
Asked by
ChrisFixit
September 22, 2014
Hello Leggs,

A 16 sq ft slab at 6" thick you would need about 14 bags of 80lb concrete. For a 12" thick slab you're looking at 28 bags. I hope this helps.

Cheers,
Chris
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Question

Shed Base

Asked by
wondering
north
about 80 lb. Concrete Mix on
September 10, 2014
I have a shed 10 ft x 10 ft. I have cut and framed base with lumber. Can't the dry concrete be added all at once, then wet and smoothed? It's a shed foundation, not a patio or driveway.
Thank you
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answer 1
Asked by
QUIKRETEProductExpert
September 15, 2014
No, QUIKRETE Concrete Mix must be mixed with water prior to application. It is NOT an acceptable practice for this product to be poured dry, then water added on top of it afterwards.
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Question

i want to make a curb next to my asphalt , 40 ft long ,8 inches wide x 6 inches deep , how many of the 80 lb bags will i need

Asked by
david
south florida
about 80 lb. Concrete Mix on
August 28, 2014
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answer 1
Asked by
QUIKRETEProductExpert
September 10, 2014
An 80 lb. bag of QUIKRETE Concrete Mix yields approximately 0.6 cubic feet of concrete. An application that is 40 ft x 0.67 ft. (8”) x 0.5 ft. (6”) will require approximately 13.5 cubic feet of concrete, or approximately 22 ½ 80 lb. bags of concrete. Yields are approximate and will vary based upon waste, uneven sub-grade, etc. An expansion joint should be left between the asphalt and the concrete as the two materials will expand and contract at different rates. If there is not an expansion joint, one or both of the materials could potentially crack. You may consider utilizing QUIKRETE Expansion Joint Strips, #6917, to help accomplish this.
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answer 2
Asked by
Blueridge
Blacksburg, VA, USA
September 1, 2014
That is about 33 cubic feet. Concrete is in the 130 to 150 pound per cubic foot range based on the amount of water you add, so you are looking at around 55 bags.
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Question

Hi, What is the minimum purchase for this item to qualify for home delivery?. Thanks!.

Asked by
crete
about 80 lb. Concrete Mix on
August 23, 2014
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answer 1
Asked by
THDCustomerSupport
September 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 or call us at HomeDepot.com Customer Service 800-430-3376.
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Question

how many bags of 80 lb i need to fill a 24 feet x3 feet x 2 inches deep ..

Asked by
ElRoy
houston
about 80 lb. Concrete Mix on
September 7, 2014
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answer 1
Asked by
QUIKRETEProductExpert
September 8, 2014
An 80 lb. bag of QUIKRETE Concrete Mix yields approximately 0.6 cubic feet of concrete. A 24 ft x 3 ft x 0.167 ft (2”) application will require approximately 12 cubic feet of concrete, or 20 80 lb. bags of concrete. Yields are approximate and will vary based upon waste, uneven sub-grade, etc.
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answer 2
Asked by
KenHDOC
Orange, Ca.
Home Improvement Profile: Other
September 8, 2014
Hi Elroy, you will need 20, 80 pound bags of ready mix concrete to fill in this area.

Hope that answered your question.
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Question

i am making a small curb , do i need rebar or can i buy bagged concrete with fiber mesh in it

Asked by
david
south florida
about 80 lb. Concrete Mix on
August 28, 2014
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answer 1
Asked by
QUIKRETEProductExpert
September 8, 2014
QUIKRETE® Concrete Mix is a pre-blended mixture of cement and aggregates for general structural uses, requiring only the addition of water. It has a typical compressive strength of 4000 psi at 28 days and can be utilized for applications such as a curbs. The QUIKRETE® Concrete Mix does not contain fibers and whether or not you need rebar will depend on the conditions the curb will face. If you are looking for a product that contains fiber and has a similar compressive strength we would recommend the QUIKRETE® Crack-Resistant Concrete Mix. Please consult your local municipality for engineering requirements.
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Question

how much of this concrete would it take to do a 30 by 40 greenhouse foundation?

Asked by
greenhousebuilder
texas
about 80 lb. Concrete Mix on
September 3, 2014
the foundation will be directly on the ground
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answer 1
Asked by
QUIKRETEProductExpert
September 4, 2014
QUIKRETE Concrete Mix has a typical strength of 4000 psi at 28 days. Consult your local building code to see if this strength and your design meet the requirements for a greenhouse foundation, for example, does it require footers that extend below the frostline, does it require metal reinforcement, etc. The number of bags required will be dependent upon the thickness of the foundation. A standard slab is 4” thick. An 80 lb. bag of QUIKRETE Concrete Mix yields approximately 0.6 cubic feet of concrete. A 30 ft. x 40 ft. x 0.34 ft. (4 inch) slab will require approximately 396 - 408 cubic feet of concrete, or approximately 660 - 680 80 lb. bags. Yields are approximate and will vary based upon waste, uneven sub-grade, etc.
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answer 2
Asked by
KenHDOC
Orange, Ca.
Home Improvement Profile: Other
September 4, 2014
Hi Greenhousebuilder, unfortunately this would be a large amount of 80 pound bags of ready mix. You would save money and time to have this much concrete poured.

1200 hundred square feet 4" thick would require 673 bags, and if the slab were 6" thick you would need 997 bags.
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Question

How can I fill and seal a 3 in crack in my driveway?

Asked by
Rick
Temple, Tx
about 80 lb. Concrete Mix on
August 12, 2014
I have a 2 to 3 in crack in my driveway running from the street to the garage (there is no rebar in the driveway). I don't have the money to replace. Can you recommend products to fill the crack, that will bond to the old concrete and seal it to keep water out?
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answer 1
Asked by
QUIKRETEProductExpert
August 19, 2014
Given the crack you describe, it sounds as though there has been settling of the sub-grade underneath the driveway taking place. Without first rectifying any issues with the sub-grade, it would be best to NOT fill the entire crack with a rigid, cementitious based material that is bonded to the existing concrete on BOTH sides of the crack, as it will likely crack as further settling occurs. You may consider using some thin material, such as Masonite or thin sheets of plastic, to build a “form” within the crack on one side, so that you can apply QUIKRETE Sand Topping Mix #1103 into the crack to bond to only one side of it. Once the Sand Topping Mix has cured sufficiently, you may remove the form, leaving a gap between the second side of the crack and the Sand Topping Mix. After allowing the Sand Topping Mix to cure for a minimum of 28 days, check to see that it has cured to the point that it does not contain excess moisture as follows: tape a 4” x 4” square of plastic wrap over the area, and wait 4 hours. If there is condensation under the plastic, additional curing time is needed. Once there is no longer moisture, use a fine sand, such as QUIKRETE Mason Sand #1952-49 or QUIKRETE Commercial Grade Fine or Medium Sand, #1961 or #1962, to fill the gap up to no more than ½” below the top surface of the driveway. Fill the remainder of the depth with Polyurethane Self Leveling Sealant #8660-10 between the driveway and the Sand Topping Mix. The working joint depth of the Polyurethane should not exceed ½" or be thinner than 1/8", ideally ¼". The ratio of joint width to depth should be 2 to 1. The material used as the form should be of a thickness that allows these requirements to be fulfilled. If the Polyurethane is applied while there is still moisture present, it will bubble, either immediately after being applied, or while it cures. There is still a chance that as the sub-grade continues to settle, the Sand Topping Mix will crack, or the Polyurethane Sealant may pull away from either the Sand Topping Mix or the existing concrete. It is important to note that neither the Sand Topping Mix or the Polyurethane Self Leveling Sealant will be exact color matches to the existing concrete, or a match to each other. Please contact the QUIKRETE Technical Center at 1-800-282-5828 for further assistance.
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Question

how many bags needed for pouring footer 8"x16" 20' long

Asked by
mick
colorado
about 80 lb. Concrete Mix on
August 5, 2014
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answer 1
Asked by
QUIKRETEProductExpert
August 11, 2014
An 80 lb. bag of QUIKRETE Concrete Mix yields approximately 0.6 cubic feet of concrete. For a footer having dimensions 0.67 ft (8”) x 1.33 ft (16”) x 20 ft., approximately 18 cubic feet of concrete, or approximately 30 80 lb. bags of Concrete Mix will be required. Yields are approximate and will vary based upon waste, uneven sub-grade, etc.
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answer 2
August 7, 2014
If you are going with 80 pound bags you will need 30 bags.

If you are going with 60 pound bags you will need 40 bags
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Question

Need to know haw many bags of 80# quickcrete we need to make a step that is 8''X4'X9"?

Asked by
James
Kansas
about 80 lb. Concrete Mix on
August 6, 2014
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answer 1
Asked by
QUIKRETEProductExpert
August 8, 2014
An 80 lb bag of QUIKRETE Concrete Mix yields approximately 0.6 cubic feet of concrete. A step that is 0.67 ft. (8”) x 4 ft. x 0.75 ft. (9”) will require approximately 2 cubic feet of concrete, or approximately 3 ½ 80 lb bags. Yields are approximate and will vary based upon waste, uneven sub-grade, etc.
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Question

How many bags of quickrete to do an area 26 feet long, 4 feet wide and 2 inches thick?

Asked by
Dana
mississippi
about 80 lb. Concrete Mix on
August 2, 2014
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answer 1
Asked by
QUIKRETEProductExpert
August 6, 2014
An 80 lb. bag of Quikrete® Concrete Mix yields approximately 0.6 cubic feet of concrete. For a 26’ x 4’ x 2”, approximately 17.33 cubic feet of concrete, or approximately 28.9 (~29) 80 lb. bags of concrete mix will be required. Yields are approximate and will vary based upon waste, uneven sub-grade, etc.
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Question

how many bags

Asked by
dawnieb
neptune nj
about 80 lb. Concrete Mix on
July 30, 2014
to do 11 feet to 24 inch walkway
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answer 1
Asked by
QUIKRETEProductExpert
August 6, 2014
The answer will depend on the thickness of the walkway. Each 80 lbs. bag will yield roughly 0.6 cubic feet per bag. So for every 2” of thickness you will roughly need 6.1 bags (~7 bags). Yields are approximate and will vary based upon waste, uneven sub-grade, etc.
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answer 2
Asked by
KenHDOC
Orange, Ca.
Home Improvement Profile: Other
July 31, 2014
Hi Dawnieb, if you're asking how many 80 LB bags of concrete mix are needed to complete an area that is 2 feet wide and 11 feet long (22 square ft), you will need 13 bags of 80 pound concrete mix.

Hope that answered your question.
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Question

How many 80 pound bag of cement is needed for a box 2ft x 5ft x 6inches deep

Asked by
Jayd
Dearborn
about 80 lb. Concrete Mix on
July 17, 2014
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answer 1
Asked by
QUIKRETEProductExpert
July 23, 2014
An 80 lb. bag of QUIKRETE Concrete Mix yields approximately 0.6 cubic feet of concrete. For a box 2 ft x 5 ft x 0.5 ft (6 inches), approximately 5 cubic feet of concrete, or approximately 8 1/3 80 lb. bags of concrete mix will be required. Yields are approximate and will vary based upon waste, uneven sub-grade, etc.
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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
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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answer 2
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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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
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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answer 2
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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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
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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answer 2
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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Question

poring 6 inch deep 22x16 foot slab how many bags?

Asked by
drew
mi, usa
about 80 lb. Concrete Mix on
July 8, 2014
just looking to see if this is even practical or I should just do a u-cart application. any help appreciated
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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. A 22 ft x 16 ft area that is 0.5 ft (6 in.) deep will require approximately 176 cubic feet of concrete (~6.5 cubic yards), or approximately 294 80 lb. bags of Concrete Mix. Yields are approximate and will vary based upon waste, uneven sub-grade, etc.
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answer 2
Asked by
KenHDOC
Orange, Ca.
Home Improvement Profile: Other
July 10, 2014
Hi Drew, this requires 293 bags of 80 pound concrete mix. I would say not real practical. This would be way to much mixing.

It's not as much about the square foot as it is about the depth. However it would still take 198 bags of 80 pound concrete mix with a 4" depth. Hope that answered your question.
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Question

Doing a 5 inch deep by 2 foot wide by 14 long piece of concrete how many 80 pound bags will I need ?

Asked by
Debra
Minneapolis MN
about 80 lb. Concrete Mix on
July 6, 2014
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answer 1
Asked by
QUIKRETEProductExpert
July 8, 2014
An 80 lb. bag of QUIKRETE Concrete Mix yields approximately 0.6 cubic feet of concrete. A 2 ft x 14 ft area that is 0.417 ft (5 in.) deep will require approximately 11 2/3 cubic feet of concrete, or approximately 19 1/2 80 lb. bags of concrete mix. Yields are approximate and will vary based upon waste, uneven sub-grade, etc.
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Question

How many 80 pound bags of concrete will i need for 60 sq ft

Asked by
1980
about 80 lb. Concrete Mix on
June 28, 2014
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answer 1
Asked by
QUIKRETEProductExpert
July 2, 2014
An 80 lb. bag of QUIKRETE Concrete Mix yields approximately 0.6 cubic feet. A standard slab is 0.34 ft. (4 inches) thick. For 60 square feet of a standard thickness slab, approximately 20.4 cubic feet of concrete, or approximately 34 80 lb. bags would be required. 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
Assuming a depth of 4", it would be about 34 bags.
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Question

How many 80 lb bags of concrete will I need to patch an area of 5.5 x 5 x 3.5?

Asked by
BABS
Little Egg Harbor NJ
about 80 lb. Concrete Mix on
May 30, 2014
Thanks for your help, Barbara.
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answer 1
Asked by
Blueridge
Blacksburg, VA, USA
June 29, 2014
Fourteen.
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answer 2
Asked by
QUIKRETEProductExpert
June 3, 2014
An 80 lb. bag of QUIKRETE Concrete Mix yields approximately 0.6 cubic feet of concrete. If the area to be repaired is 5.5 ft x 5 ft and 3.5 inches (0.29 ft) thick , it would require approximately 8 cubic feet of concrete, or approximately 13-14 80 lb bags. Yields are approximate and will vary based upon waste, uneven sub-grade, etc.
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