Concrete Test Moulds Two-part Plastic Cubes
Choose from 100mm or 150mm reusable concrete cube moulds. Available to purchase as one or in a pack of six.
The Qube™ plastic concrete test mould has a revolutionary design that caters for rapid debonding and multiple reuse. These are lightweight and cost effective.
Used for: A concrete cube test involves taking a sample of freshly mixed concrete, letting it cure, then crushing it and measuring its compressive strength. Many concrete suppliers carry out this process at a certified test house, away from their facilities in a temperature-controlled state-of-the-art testing laboratory.
Hardened Concrete Compressive Strength Testing
To verify the strength of a freshly mixed concrete, cube samples are taken in either 100mm or 150mm cube moulds. Before their compressive strength can be tested, the cubes must be placed in a curing tank for 28 days. They are then placed into a compression machine, where they are subjected to increasing load until failure.
The resulting maximum load will be divided by the cross-sectional area of the sample to calculate its compressive strength. The compressive strength can then be compared to the design strength of the concrete mix. This is critical for determining if the mix can reliably withstand the weight and pressures of its intended use.
The Qube™ plastic concrete test mould is a revolutionary concrete test mould that allows for rapid forming and deforming of test cubes.
The innovative design is lightweight allowing for easy transportation and it's plastic construction is easy to de-bond from the cured concrete. Simply slide the corner grips and open the mould, remove the cube and replace the corner grips and the mould is ready to go again.
Unlike polystyrene moulds the Qube™ (manufactured from robust heavy duty Polyurethane) will give you multiple reuse. No more seized or stiff bolts to undo. No more back breaking lifting 15kg steel moulds plus the weight of the concrete. Simple, lightweight and cost effective. The plastic cube mould is far easier to use than traditional plastic moulds.
Aggregate size specifications
Cubes of 100mm size are not suitable for concrete having a nominal maximum aggregate size exceeding 20mm. Cubes of 150mm size are not suitable for concrete having a nominal maximum aggregate size exceeding 40mm.
Certificate of compliance is not available with Qube plastic mold's. If you require this please choose one of our Steel mould options.
Guidelines for proper use of molds:
The list below is by no means exhaustive but wants to give some recommendations for correct use of molds. For more information, please always refer to the user manual.
- Molds must be kept clean and free from residues. This is essential to extend the lifespan of the molds and prevent any defects on sample surfaces. Clean the molds of any residues within 24 hours after demolding to prevent encrustations and rust.
- Before casting, it is strongly recommended coat the internal mold faces with a thin layer of a demolding agent (e.g. sku MO25) that facilitates removal of hardened samples during demolding operations.
- Before casting, it is strongly recommended coat the internal mold faces with a thin layer of a demolding agent (e.g. sku MO25).
- Demolding shall be done within the first 24 hours of curing and not later than 3 days to ensure easy removal of hardened samples without any mould damage.
Note that:
- Plastic molds are suitable for sample curing according to reference standards as EN 12390-3 (20 ± 5°C) and they shall not be used for any accelerated curing treatments at high temperature, including steam curing.
- Plastic molds shall not be used in case of accelerated concrete or expansive concrete mixes.
