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do you need to tamp concrete

by Amaya Hamill Published 3 years ago Updated 2 years ago
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DO YOU NEED TO TAMP CONCRETE? Tamping should only be done on low slump concrete. With high slump concrete, the coarse aggregates sink naturally and tamping can cause segregation of the aggregates.

What does it mean to tamp concrete?

A tamped concrete finish is achieved by using a tamping beam, which is used to compact the concrete before it fully cures to enhance its strength. The tamped finish is created by moving the tamping beam up and down in quick succession along the surface of the concrete floor in the same direction.

How do you tamper concrete footings?

1:242:58Concrete Stamp Tampers - YouTubeYouTubeStart of suggested clipEnd of suggested clipNow when you tamp with stamps. You always want to be standing on the mat what I mean is I don't wantMoreNow when you tamp with stamps. You always want to be standing on the mat what I mean is I don't want to tamp like this because the tent the stamp could actually vibrate. So I want my weight.

How do you make a concrete finish smoother?

3:4211:30Learn How To Finish Concrete Smooth | Steel Trowel ... - YouTubeYouTubeStart of suggested clipEnd of suggested clipYou always want to float the concrete. First this will help level it a little better help smooth itMoreYou always want to float the concrete. First this will help level it a little better help smooth it a little better. And it just makes the whole process go a little easier.

What does a concrete roller tamper do?

Concrete Roller Tamp is used to depresses the aggregate and brigs the fat to the surface in a uniform manner. Levels the slap in half the time and does a better job the other conventional tampers. The tamper can also be used to create a non-skid surface when rolled over for a final finish.

Can you pour a footing without forms?

The section on footings in Formwork for Concrete (ACI SP-4) says that when fabricated forms are omitted entirely and concrete is cast directly against the excavation, larger tolerances may apply.

What does tamper mean in construction?

[′tam·pər] (civil engineering) A ramming device for compacting a granular material such as soil, backfill, or unformed concrete; usually powered by a motor.

When should you Powerfloat?

When to power float concrete Among the best power trowel finishing techniques, before using it, we recommend stepping on the concrete when it has started to dry. Your surface is ready to power float when your footprint is ¼” deep or a bit less and it doesn't bleed much water.Feb 1, 2022

Can you smooth out concrete after it dries?

Can You Smooth Concrete After It Dries? It is possible to smooth concrete after it dries, but in many cases, it requires a fresh layer of concrete over the top of the dried surface. This can allow you to keep the surface smooth and even, even though the concrete is completely dry.

When should you finish concrete?

0:438:14When To Start Finishing Concrete After The Pour - YouTubeYouTubeStart of suggested clipEnd of suggested clipIt's going to depend on how wet or how dry you pour the concrete. The wetter you pour the concreteMoreIt's going to depend on how wet or how dry you pour the concrete. The wetter you pour the concrete the longer it's going to be after you get done pouring before you start finishing.

How do you tamp concrete?

0:361:51Concrete Tamper Placing Concrete Video—ConcreteNetwork.comYouTubeStart of suggested clipEnd of suggested clipWe will use this tool called the tamp. Sometimes referred to as the Jitterbug. And all we're tryingMoreWe will use this tool called the tamp. Sometimes referred to as the Jitterbug. And all we're trying to do is embed the aggregates down and bring some of the cement paste up.

How do you make a homemade tamper?

0:242:28Cheap Quick Asphalt Tamper DIY - YouTubeYouTubeStart of suggested clipEnd of suggested clipYou take the the discarded bag. And you can see I've already been tamping with it and you line theMoreYou take the the discarded bag. And you can see I've already been tamping with it and you line the outside of the block. With the bag.

How do you use a tamper tool?

1:093:40HOW TO USE A COMPACTER! - YouTubeYouTubeStart of suggested clipEnd of suggested clipWith the tamper. And make it much more secure. So how do you simply use this tool here well it'sMoreWith the tamper. And make it much more secure. So how do you simply use this tool here well it's basically as simple as that once you have a layer of material spread out that needs to be compacted.

How much does a concrete tamper cost?

Pricing also varies between tool manufacturers. Generally, expect to pay somewhere between $40 and $100 for a tamper.

Can you tamper with low slump concrete?

Tamping should only be done on low slump concrete. With high slump concrete, the coarse aggregates sink naturally and tamping can cause segregation of the aggregates. Ralph Spannenberg, in "Use the Right Finishing Tools at the Right Time" notes that if a tamper is used when the slump of normal weight concrete is greater than 3 inches, ...

What happens if you start stamping too late?

If you start stamping too late, not only will stamping require more effort, you'll produce little or no texture with the stamps, especially as you reach the end of the job . Press your fingers into the concrete surface at several locations on the slab.

How long does it take for a concrete slab to absorb water?

After the first shake of color hardener has been applied to the surface, give it five to 10 minutes to absorb water from the concrete and then float it into the surface.

Why is it important to place the first row of stamps on a straight line?

It's important to place the first row of stamps on a straight line because that will serve as the benchmark for the rest of the job. If it's not perfectly straight, the rest of the rows will be out of alignment as well. Use a string line as a guide, especially for aligning stamp patterns that are square or rectangular.

How to make concrete look plastic?

1. Apply color hardener After the concrete reaches the right stage of plasticity (generally when no bleedwater is on the surface), broadcast the color hardener by throwing it onto the surface from waist level or a bit lower to minimize the amount of material that drifts into the air.

What to check before stamping concrete?

Test to see if the concrete is ready Before you begin stamping, check to see that the concrete has reached the right stage of plasticity. If you begin stamping too soon, the concrete won't be firm enough to support the weight of workers or hold a well-defined imprint.

What is the purpose of a release agent?

Apply release agent Powdered or liquid release agents serve two important purposes: They impart subtle color contrast while acting as a bond breaker to prevent the stamping mats or skins from sticking to the concrete and disturbing the imprint texture.

How long after sealing concrete can you use a finish coat?

Seal the concrete Once the slab has cured sufficiently, you should apply a finish coat of sealer. Most manufacturers recommend applying the sealer several weeks later, after a light surface cleaning. Be careful not to apply the sealer too heavily, which could trap moisture in the slab.

How long does it take for a concrete hardener to absorb?

Allow the hardener to be absorbed for several minutes until it has moistened sufficiently to work the color in with a wood or magnesium float. One pass with the float should be sufficient; do not overwork the concrete. If necessary, repeat this process in areas where natural concrete is showing through.

How thick should concrete be?

(Please note: Some admixtures may affect color.) The concrete should be no less than four inches in thickness.

How many square feet does a gallon of cement cover?

When the slab is thoroughly dry, clear enhancer should be applied using a roller. One gallon covers approximately 200 square feet.

What is decorative concrete?

Decorative concrete is an attractive and economical alternative to natural paving materials or plain poured concrete. You can achieve many different looks, and with advance planning, will be able to get just the right look for the project.

Can you use sealant on concrete?

It's not the best idea, as the dust and sealant could actually stick to the concrete and to the stamp, causing chunks to come up when you try to remove the stamp. If you can, stick with the release agent so that the stamps come up easily and then use a sealant as the last step once the entire project is done. Thanks!

Can you use release agent on concrete stamps?

Using the release agent on the stamps should impart color down the sides of each form. Or, you could choose to use an integral color that will get mixed in with the concrete before it is poured to ensure that all of the concrete is the same color. Thanks!

Can you stamp concrete that is already set?

Also, keep in mind that you can't stamp concrete that is already set. It needs to have been poured within the last 12-24 hours, otherwise, you'll need to pour a new layer of wet concrete over top of what's already there if you want to stamp it. Thanks!

Re: Tamp or concrete ?

I think I'd use the new post supports that are available. You can pour a small concrete pad for each post and set the post support on it. Check at your local Home Depot or Lowes or independent building supply store.

Re: Tamp or concrete ?

Just another thought here is - how close are you to the water and what are the chances of high winds, flooding, or the effects of tropical storms?

Re: Tamp or concrete ?

You wrote, "Just another thought here is - how close are you to the water and what are the chances of high winds, flooding, or the effects of tropical storms?"

Re: Tamp or concrete ?

I had friends in Lakeland who lived in a large old 2-story house in an area with a lot of older 2-story homes. Some have 2nd-story decks. The OP lives in the St. John's River area, which sounds like he'd be near Jacksonville. I'm not so familiar with that area.

Re: Tamp or concrete ?

The St John runs North from around Melbourne to Jacksonville. I live in the middle. I live about 3/4 mile from the river in a building code 120 mph zone, and am not in a 100 year flood plan zone. The deck will be almost ground level at the house, and 1-1/2' high on the outside edge.

Re: Tamp or concrete ?

Haven't discussed it with zoning. The deck is existing and dilapidated, I'm just replacing it.

Re: Tamp or Concrete?

IMO The thing that will fail (in the UK) is the post, which will rot. If it is set in concrete you then have a useless lump of concrete with a rotten post in it. Tamping it in gives an easier replacement further down the line. The only thing worth concreting in is surely concrete or steel posts.

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1.How to Tamp Concrete: 12 Steps (with Pictures) - wikiHow

Url:https://www.wikihow.com/Tamp-Concrete

24 hours ago Do you need to tamp concrete? Remember, there's no need to tamp high slump concrete . Over-compacting the mix can actually cause aggregate materials …

2.Concrete Tampers - Tamping Concrete with a Jitterbug ...

Url:https://www.concretenetwork.com/concrete/concrete_tools/tampers.htm

16 hours ago Oct 29, 2005 · We have way better floor mixes now than even 10 yrs ago, and with concrete placing by pumper being the most common method of placement, jitterbugs have become unnecessary. Pump mixes typically have more " fat " which allows the concrete to be pumped, and aids in placement workability. Jitterbugs may still be necessary for " chute " mixes as ...

3.How To Stamp Concrete - Stamping Concrete 101 - …

Url:https://www.concretenetwork.com/products-stamps-skins/how-to.html

26 hours ago Tamping should only be done on low slump concrete. With high slump concrete, the coarse aggregates sink naturally and tamping can cause segregation of the aggregates. Ralph Spannenberg, in "Use the Right Finishing Tools at the Right Time" notes that if a tamper is used when the slump of normal weight concrete is greater than 3 inches, a tamper segregates the …

4.How to Stamp Concrete: 11 Steps (with Pictures) - wikiHow

Url:https://www.wikihow.com/Stamp-Concrete

27 hours ago Jun 18, 2020 · Continue the stamping sequenceIf the concrete is at the ideal stage for stamping, you should be able to impress the stamps into the surface by simply walking on the tools, possibly followed by a light tamping. The stamping crew should complete the first row before moving on to the second one.

5.Tamp or Concrete? - CR4 Discussion Thread

Url:https://cr4.globalspec.com/thread/81011/Tamp-or-Concrete

10 hours ago Oct 21, 2021 · 3. Color the concrete. There are two basic techniques: Integral Color: Liquid Color into the ready mix truck. This procedure combines the color with the mix prior to the pour and the slab is colored throughout, or: Broadcast Method: Apply color hardener powder directly to the freshly poured concrete surface.

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