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Model # 100450

Internet #100318521

Store SKU #842303

Quikrete 50 lb. Fast-Setting Concrete Mix
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Quikrete

50 lb. Fast-Setting Concrete Mix

  • Sets quickly in just 20-40 minutes
  • Sets posts with no mixing required
  • Easy to use by simply adding water
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Frequently Bought Together

Frequently Bought Together

Product Overview

  • Sets quickly in just 20-40 minutes
  • Sets posts with no mixing required
  • Easy to use by simply adding water
Quikrete 50 lb. Fast-Setting Concrete Mix is a special blend of fast-setting cements, sand and gravel. Designed to set hard in 20-40 minutes. Sets posts without mixing.
  • Used to set mailbox posts, fence posts and lamp posts without mixing
  • Pour dry mix into hole and soak with water
  • Also use for building steps, sidewalks and slabs where rapid set time is required
  • Exceeds the requirements of ASTM C387
  • 4000 psi in 28 days
  • Each 50 lb. bag will yield approximately 0.375 cu. ft. of mixed concrete
  • Learn more about concrete and cement here in our Buying Guide
  • Note: product may vary by store



  • California residents see Prop 65 WARNINGS

Product Overview

  • Sets quickly in just 20-40 minutes
  • Sets posts with no mixing required
  • Easy to use by simply adding water
Model #: 100450
Sku #: 842303
Internet #: 100318521

Quikrete 50 lb. Fast-Setting Concrete Mix is a special blend of fast-setting cements, sand and gravel. Designed to set hard in 20-40 minutes. Sets posts without mixing.

  • Used to set mailbox posts, fence posts and lamp posts without mixing
  • Pour dry mix into hole and soak with water
  • Also use for building steps, sidewalks and slabs where rapid set time is required
  • Exceeds the requirements of ASTM C387
  • 4000 psi in 28 days
  • Each 50 lb. bag will yield approximately 0.375 cu. ft. of mixed concrete
  • Learn more about concrete and cement here in our Buying Guide
  • Note: product may vary by store



  • California residents see Prop 65 WARNINGS

Info & Guides

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Info & Guides

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Name 60 lb. Concrete Mix 50 lb. Fast-Setting Concrete Mix 80 lb. High Early Strength Concrete Mix 80 lb. Crack-Resistant Concrete Mix
Brand Quikrete Quikrete Quikrete Quikrete
Ratings (804) (363) (109) (84)
View Product View Product View Product View Product

Specifications

Dimensions

Coverage Area (cu. ft.)
.37
Product Depth (in.)
10
Product Height (in.)
4
Product Length (in.)
17

Details

Color Family
Gray
Color/Finish
Gray
Compression Strength (psi)
4000
Features
Fast Setting
Material
Concrete
Product Weight (lb.)
50lb
Use Location
Floor
Working Time (min.)
20.0

Warranty / Certifications

Manufacturer Warranty
See packaging

Specifications

Dimensions

Coverage Area (cu. ft.)
.37
Product Depth (in.)
10
Product Height (in.)
4
Product Length (in.)
17

Details

Color Family
Gray
Color/Finish
Gray
Compression Strength (psi)
4000
Features
Fast Setting
Material
Concrete
Product Weight (lb.)
50lb
Use Location
Floor
Working Time (min.)
20.0

Warranty / Certifications

Manufacturer Warranty
See packaging

Questions & Answers

it states that you don't have to mix this before hand...…..but can I do it anyways or would it sc...

it states that you don't have to mix this before hand...…..but can I do it anyways or would it screw up the texture or whatnot
Asked by: chaplin
You can mix this before hand like my neighbor does and he is happy with the outcome/set. I don't like a lot of extra mess so mix it in the ground (actually just add water to the dry mix that I poured into the application) and have had great results as well. Try it both ways and leave a review.
Answered by: HDsmiles
Date published: 2018-10-26

when using several bags, do I add bag then water until it’s mixed and then add the next bag then water and so forth?

Asked by: marie
It depends on what type of project you're working on. For example, if you're digging post holes, you can pour the dry concrete around the post, then add water, or you can mix the concrete yourself and add it around the post. Your best bet would be to visit the Quikrete website for the best answer. www.quikrete.com
Answered by: My2cents
Date published: 2018-08-19

I have a project where I actually want water to slowly seep through. Is this product water perme...

I have a project where I actually want water to slowly seep through. Is this product water permeable after it sets? If not, is there a way to make behave this way?
Asked by: Nathan
After this Quikrete sets, it is just like concrete. It will absorb moisture but would not permeate water in a seeping fashion. I would guess you would need a compacted sand mixture to create a seeping effect.
Answered by: OilCityOutlaw
Date published: 2018-09-12

Can you use Quikrete to build a patio slab

Can you use Quikrete to build a patio slab
Asked by: tn2
That's exactly what we did. We built a patio slab and it looks great. It's been in place for 2 years now and no cracks or any other problems at all.
Answered by: bignreel
Date published: 2019-01-20
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Customer Reviews

50 lb. Fast-Setting Concrete Mix is rated 4.6 out of 5 by 363.
Rated 5 out of 5 by from We used this product to set 8 foot post for... We used this product to set 8 foot post for a privacy fence. It was by far the easiest part of the job. One bag of mix, one gallon of hot water, and one happy worker. Sets fast and is coverable (dirt) in about 60 mins.
Date published: 2018-12-19
Rated 5 out of 5 by from All good... All good
Date published: 2018-11-21
Rated 5 out of 5 by from Quick and easy I purchased a few bags of Quikcrete fast settling concrete from Home Depot, to install a couple 4x4 posts in my yard over the weekend. I had never used this product before so when I saw it in the store, I jumped at the chance to avoid mixing cement in a wheelbarrow with a shovel. The product worked exactly as described. After putting gravel in the hole and leveling the post, I dumped 3 bags in per hole, as the guide on the package recommended. I added roughly 3 gallons of water (1 gallon per bag) and walked away. After a couple hours the top of the cement had hardened. After 4 hours, the post was solid and I finished my project the same day. This project was supposed to take a couple weekends to complete but thanks to Quikrete, I finished in a day.
Date published: 2013-04-09
Rated 5 out of 5 by from I bought 68 bags to use as a flag pole base. i did not fully trust the claims of " Just pour wate... I bought 68 bags to use as a flag pole base. i did not fully trust the claims of " Just pour water on top and let it sink in" so i tested it. I cut the top off a clear 5 gallon water bottle and poured a half a bag in, poured the required water on top and let it alone. the water could be seen creeping down and through the concrete mix. In about 15 minutes it was mostly saturated. I added the second half of the bag on top and poured the required water on top to test the joint between the two. Same result, full saturation in about 15 minutes. After a few days of sitting i unwrapped the plastic bottle from around the concrete, picked up the block and dropped it, hit it with a hammer, could not break the block at the joint. Very impressive.
Date published: 2017-03-07
Rated 1 out of 5 by from I was setting fence posts and became aware of this product. I was skeptical that water and concre... I was setting fence posts and became aware of this product. I was skeptical that water and concrete mix could mix thoroughly. Thinking about it, it seemed to violate everything I thought I understood about how these things work, but I decided to give it a try. Lots of good reviews. Well, my instincts were right. I did one post, and it stayed loose. I jacked the post out of the ground after a couple of days and the mix was dry on the bottom of the hole. And yes, I added plenty of water. I dropped the post on the ground, and the concrete shattered. It was not strong at all, rather crumbly. I premixed the rest of the job, and it went fine. When mixing the concrete, it was easy to see why this method cannot properly mix concrete. The cement in the mix is a fine powder, like flour. It resists mixing with water, and needs physical agitation just like cake batter needs mixing. So the posts are fine, but the next time I would buy just regular concrete mix. It is cheaper, and if you can afford to wait overnight, you will be ahead of the game. If you need to set up quicker, this is the product, but mix it first. BTW, the best tools are a wheelbarrow and a hoe. It is quiet effortless and you will get a mix you can count on. Also, if you want real straight posts, brace them before you pour. Don't take a shortcut here. That is more bad advice you get from the quick and easy school.
Date published: 2019-02-04
Rated 5 out of 5 by from Worked as indicated on bag I purchased this product after my stockade fence fell during a storm. The previous owner of my property set the poles in sand so of course that didn't withstand much wind. I didn't want this to be a major project spanning multiple days so I jumped at the possibility of quick set no mix concrete. The day I used this product it was 34 degrees outside so I did as directed and added hot water in the quantity indicated. After putting tools away ,I took a shower and changed clothes. In that amount of time (approx 45 mins) it had set solid .. I'm very happy with this product for the use described, note however that the finish was rocky since there was no need to smooth it for a finished look since I covered it with dirt after photo but for setting poles the red bag product works great.
Date published: 2013-11-26
Rated 5 out of 5 by from Purchased for fence posts. We actually decided to add water... Purchased for fence posts. We actually decided to add water and mix BEFORE pouring into holes. The concrete hardened so fast that we were able to construct 90’ of fence posts within a very short time. DEFINITELY the right choice. No regrets and will definitely use this product again.
Date published: 2019-02-05
Rated 5 out of 5 by from Mississippi Mailbox I bought it for my mailbox that is constantly shifting...Due to being on a slope and a neighbor who likes to glide off the highway. It was easy I poured it in the hole and use one gal of water and just packed it . It immediately started to solidify.
Date published: 2019-02-03
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