Rapid Set Concrete 20kg

By Cement Australia

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SKU: CARAPIDS
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$10.00

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Collect from: Keilor East

Cement Australia Rapid Set Concrete is a dry concrete mix formulated to harden rapidly. It goes straight into the post hole: water first, then the dry mix, tamped around the post. Supports may be removed after about 1 hour, depending on the temperature. For fence and non-load bearing pergola posts, clothes hoists and other non-structural uses. 20kg bag, pickup from Keilor East.

Description

Cement Australia Rapid Set Concrete is a dry concrete mix, made in Australia, formulated to harden rapidly so a post job can be finished sooner than with a standard concrete mix.

Cement Australia lists it for fixing fence and non-load bearing pergola posts, clothes hoists and many other non-structural uses. It is not designed for use in any structural application.

It is not mixed in a barrow. Water goes into the hole first, then the dry mix is poured in and tamped around the post. Supports may be removed after 1 hour, depending on the ambient temperature.

Technical Specifications

Product type Rapid-hardening dry concrete mix
Water Start with 2.0 L per 20kg bag, add 0.3-0.5 L only if needed
Support removal After 1 hour, depending on ambient temperature
Use Non-structural applications only
Minimum temperature Not recommended below 10°C
Origin Made in Australia (Cement Australia)
Pack size 20kg bag

Where to Use

  • Fence posts
  • Non-load bearing pergola posts
  • Clothes hoists
  • Other non-structural post fixing

How to Apply

  1. Position and support the post: place the post or pole in the hole and support it so it cannot fall over.
  2. Pour water into the hole: start with 2.0 litres per 20kg bag.
  3. Add half the bag: pour half the bag evenly around the post without delay, then tamp it with a rod to remove air pockets.
  4. Add the rest and tamp again: add small amounts of water only if needed so the mix is completely moistened. If the hole needs more concrete, repeat straight away with another bag.
  5. Remove supports after 1 hour: depending on the temperature. Check the post is stable before removing the supports.

Important Notes

  • Wet cement is alkaline and can burn skin and eyes. Wear gloves, eye protection and a P2 mask, avoid breathing dust when opening or mixing, and wash it off skin promptly. See the Safe Work Australia guidance on cement and silica dust.
  • Cement, sand and aggregate contain crystalline silica. Keep the material damp where you can, avoid breathing the dust, and wear a P2 mask if it is dry and dusty.
  • Not designed for use in any structural application.
  • Not recommended for use below 10°C.
  • Do not add extra cement, sand, other aggregates or admixtures to the mix.
  • Store dry and use within the shelf life stated on the bag.
  • Pickup only from our Keilor East yard.

Key Features

  • Rapid-hardening dry concrete mix
  • Water into the hole first, then pour and tamp
  • Supports off after about 1 hour, depending on temperature
  • For fence and non-load bearing pergola posts and clothes hoists
  • Not for structural use
  • Made in Australia by Cement Australia
  • 20kg bag

Frequently asked questions

What is Rapid Set Concrete used for?

Cement Australia lists it for fixing fence and non-load bearing pergola posts, clothes hoists and many other non-structural uses.

How do I use it?

Support the post in the hole and pour about 2.0 litres of water per 20kg bag into the hole. Pour in half the bag and tamp it with a rod, then add the rest and tamp again. Add a little water only if the mix is not fully moistened.

When can I remove the supports?

After 1 hour, depending on the ambient temperature. Check the post is stable before removing them. Cement Australia does not recommend using it below 10°C.

Is Rapid Set Concrete suitable for structural work?

No. Cement Australia states it is not designed for use in any structural application. For footings or slabs that carry load, use a concrete specified to the strength grade the job requires.

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