How long does it take for Postcrete to go off?

Postcrete has a 300 day usable window from the date of packing clearly printed on the bag where the Soluble Chromium VI will be less than the legal limit.

How long does it take Postcrete to fully set?

How long does it take for Postcrete to set? After adding water to the mix, Postcrete usually sets in 5-10 minutes, with the solution beginning to stiffen within 1-2 minutes.

How long does it take for post mix to go off?

After 24 hours it will be around 90% cured, about as cured as it's going to get, anyway, in the short term.

How much water do I add to Postcrete?

Fill hole with water to a third of the depth. 3. Pour in POSTCRETE evenly around post until no standing water is visible (powder completely covers water surface).

Can I put Postcrete in before water?

Postcrete is designed to be put in the whole dry. Normally after you put the dry concrete and the post in the hole you just pour water in on top of the dry mix.

HOW TO USE POSTCRETE | WOODEN POST INSTALLATION | DECKING DIY

Can I use Postcrete as concrete?

Postcrete may not be used for general concreting, screeds, mortar, grout or render. If a particular compressive strength is required, Postcrete should not be used.

What's the difference between concrete and Postcrete?

Depending on its application, traditional concrete can take between 24-48 hours and 7 days to set properly and will reach its optimum strength after 25-28 days. Postcrete, on the other hand, is the name given to a post mix concrete, which is a ready to use blend of concrete ingredients that requires no mixing.

How many posts does 20kg Postcrete do?

depends how 'good' are your holes. you will need minimum 1 bag per post. I usually use one and a half per post but I am using 25kg bags. often poscrete is in 20kg bags so 2 per post is more likely.

Why is my concrete still soft?

You get a soft concrete when the crystalline structure within the slab is widely dispersed. The bonds aren't as strong and there's a higher porosity. Often this is caused by adding too much water to the cement and aggregate and air pockets getting trapped within the slab during the cure.

Can you mix sand with Postcrete?

A ready to use blend of selected sand, cement and additives formulated for fixing wooden, concrete and metal posts. With just the addition of water and with no mixing required; Postcrete sets in 10 minutes and comes in handy 20kg weatherproof, tear resistant plastic bags.

What is the strength of Postcrete?

Very strong and extremely durable with a compressive strength of 40N/mm2 at 28 days. Ideal for: • Structural Concrete • Drives • Steps • Paths POSTMIX High quality pre-mixed formulation, specially designed for the fast setting of wooden, concrete or metal fence post.

Is 2 feet deep enough for fence posts?

The depth of the hole should be 1/3-1/2 the post height above ground (i.e., a 6-foot tall fence would require a hole depth of at least 2 feet).

Will concrete set if it's too wet?

When concrete is too wet it dries weaker, overly porous and prone to cracking. Excess water will evaporate and escape the hardened concrete which causes cracks and eventual breakage.

How much Postcrete do you need per post?

The exact amount of Post Mix Concrete needed will vary depending on the width and depth of the hole, but as a general rule you'll need about one and a third bags for a standard fence post. A gate post, which works harder than a fence post due to the movement of the gate, may require three or four bags.

Does wetting concrete make it stronger?

Concrete continues to gain strength after pouring for as long as it retains moisture, but the longer it moist-cures, the slower the rate of strength gain. Moist-curing concrete for 20 days more than doubles its strength compared to four days of moist-curing, which is considered a minimum.

What's the reason concrete would not set after 2 days?

Concrete Never Stops Curing

The continual hardening occurs because cement particles react with the water in the mix (hydration), and as long as cement is in contact with moisture, even minuscule bubbles, it will continue to form bonds. This is minimal after “full strength” is achieved, but it is continual.

Can I pour concrete over 2 days?

Although concrete will harden soon after pouring, it's still susceptible to damage from weight during the first four weeks. Wait at least 24 hours before allowing foot traffic, including pets, on a newly poured sidewalk or slab, and don't drive a vehicle on a new driveway for at least 10 days.

How deep should a 3 foot fence post be?

The general rule of thumb when setting a post is that the depth of the post's hole needs to be one-third to one-half of the actual above-ground height of the post. So, a six-foot-high finished post ideally needs to be buried three feet into the ground.

Can I use Postcrete for shed base?

You could possibly use the postcrete but it would be better if you mixed it with water and not put in the hole as a dry mix.

Can you use Postcrete for paving slabs?

Re: Using postcrete between paving flags

I wouldn't use postcrete as it contains small stones and is not really fine enough to fill joints satisfactorily.

Can you use Postcrete to fill holes?

For best results follow these instructions: 1) Dig hole to correct depth and width relevant to post size (see table on reverse). 2) Fill hole with water to a third of the depth. 3) Pour in Postcrete evenly around post until no standing water is visible (powder completely covers water surface).

Can you use Postcrete for gate posts?

If not, and you hit an unbreakable stone hopefully at least a foot or more deep (ideal depth is 2.5 or 3 foot) you can pour a wet concrete mix in the hole around your post, and leave for 24 hours to set. Alternatively, if you are in a hurry, you can use Postcrete, which sets in 15mins.

Can you use Postcrete for foundations?

It will set in a day. You would be better advised to lay the foundation one weekend and build the wall the next.... Postcrete should just be used for setting fencing posts,not really suitable for anything else.

Can you use Postcrete for sleepers?

There are three main methods for securely attaching sleepers to the ground. Pre-drill the sleeper and insert a metal rod to (at least) the depth of the sleeper. Screw-fix a metal log roll pin or wooden stake – one to each end of the sleeper. Dig a 75mm deep trench and use postcrete to provide a base 25 – 30mm deep.