MACt GRC Premix (20kg)
MACt GRC Premix (20kg)
Pallet lots Pre Order only.
MACt Premix is an easy to use, ‘all in one’ concrete designed especially for making architectural concrete or wherever performance and aesthetics are important. Just add water and glass fibre to make high strength, flowable concrete. Perfect for furniture, bench tops, sinks and vanities etc
20kg bags are currently on pre-order. Please allow 7-10 working days on orders to allow processing.
RECOMMENDED USES
MACt GFRC Premix Premium Grey
Premixed GFRC (Glass Fiber Reinforced Concrete) is a versatile and durable material that can be used in a wide range of applications. Some of the common uses for premixed GFRC include:
Architectural elements: GFRC can be used to create a wide range of architectural elements such as columns, cornices, balustrades, and window surrounds.
Façade cladding: GFRC can be used as an alternative to traditional building materials such as brick and stone for façade cladding, as it can be molded into a wide range of shapes and sizes.
Furniture and decor: GFRC can be used to create a wide range of furniture and decor items such as tables, countertops, and sculptures.
Pools and Spas: GFRC is a popular material for pools and spas due to its durability and resistance to chemicals.
Fireplaces and fire pits: GFRC can be used to create fireplaces and fire pits that are resistant to high temperatures and flames.
Landscaping: GFRC can be used to create a wide range of landscaping elements such as planters, water features, and statues.
Custom projects: GFRC can be used to create custom projects such as themed structures, interactive sculptures, and other unique designs.
Industrial: GFRC can be used in industrial applications for creating linings, covers, and other protective structures.
Artificial Reefs: GFRC can also be used in the construction of artificial reefs, as it is durable and can withstand the harsh marine environment.
Modular building: GFRC can be used for modular building elements, which are building components that can be easily assembled and disassembled, making it an ideal solution for temporary or mobile structures.
Premixed GFRC offers many advantages over traditional building materials, such as its lightweight, high strength, and ability to be molded into a wide range of shapes and sizes. It’s also a cost-effective solution, as it requires less labor and equipment to work with it, resulting in a faster installation time, and a better finish. With premixed GFRC, the possibilities are endless, whether it’s for architectural elements, pools and spas, landscaping, artificial reefs, or modular building.
Premixed GFRC offers many advantages over traditional building materials, such as its lightweight, high strength, and ability to be molded into a wide range of shapes and sizes. It’s also a cost-effective solution, as it requires less labour and equipment to work with it, resulting in a faster installation time, and a better finish. With premixed GFRC, the possibilities are endless!
FEATURES & BENEFITS
MACt Premix is a cost effective, time saving general GFRC concrete with the following benefits:
Enhanced early strength with high ultimate strength and low permeability ensure the durability of the hardened premix
Gaseous expansion system compensates for shrinkage and settlement in the plastic state
Can be dry packed, rammed, trowelled, poured and pumped or sprayed.
Pre-packaged material overcomes potential on-site mixing variations
Develops high early strength without the use of chlorides
No metallic iron content to cause staining
Twin component hydraulic binder glass fibre modified system with additional hydration, flow, defoaming, plasticising and anti-shrink admixtures.
APPLICATION
MACt Premix GFRC Grey (20kg) is a general purpose Ultra High-Performance Concrete mix and is supplied ready to use in 20 kg bags. The flow or consistency of the GFRC mix is controlled by the addition of potable water and MACt Plasticiser
Add all the required water (see below) to a clean bucket, add half of the powder and mix for three minutes with a drill and paddle. Add the second half of the powder with mixing and continue to mix for a further 3 mins until the grout is smooth.
Adding the maximum recommended of 3.0 litres per bag produces a flowing shrinkage compensated GFRC for gap thicknesses from 10 mm up to 100 mm. This also is a low viscosity mix for use as a pumped GFRC concrete.
Adding 2.9 litres produces a sprayable consistency which resists sagging on vertical surfaces.
Adding 2.8 Litres gives a trowel able stiff grout with a consistency sufficient for building up in unsupported structures against vertical and overhanging mouldings
Adding less than 2.6 litres may result in a flash- set grout.
The storage, handling and placement of the MACt Premix must be in strict accordance with the manufacturer’s instructions. A positive volumetric expansion of 1-3% shall occur while the MACt Premix is in a plastic state.
In hot weather for extra work time replace up to 50% water with ice (by weight) or use MACt Hydration Stabiliser (retarder)
MACt Premix GFRC Grey (20kg) MODIFICATIONS
Modification of MACt Premix by the addition of accurately weighed pigments may be undertaken. Addition of significant levels of pigment will reduce strength and flow characteristics. To increase flow add 3Ltr of water per bag, use additional MACt Plasticiser to achieve the required consistency.
Non approved additives shall not be used and can seriously impact the performance of this product.
TECHNICAL ADVICE
Mining and Cement Technology offers full technical support and on-site advice to specifiers, end-users and contractors for all of our comprehensive range of high quality, high performance construction and mining products.
STORAGE & SHELF LIFE
If MACt Premix GFRC Grey (20kg) is kept in its original packaging in a dry environment, shelf life of 12 months is to be expected.
This time may be reduced if the product is subject to high temperatures or humidity.
Bulk bags are expected to remain covered in plastic until use.
Performance Data:
Consistency* |
Flow |
Pump |
Spray |
Trowel |
Consistency* |
Flow |
L/Bag |
3.0 |
3.0 |
2.90 |
2.8 |
L/Bag |
3.0 |
1 Day |
28.0 |
28.0 |
36.5 |
47.0 |
1 Day |
n/a |
7 Day |
51.0 |
51.0 |
57.0 |
65.0 |
7 Day |
7.0 |
28 Day |
81.0 |
81.0 |
88.0 |
100.0 |
28 Day |
8.5 |
W:P |
0.15 |
0.15 |
0.145 |
0.14 |
W:P |
0.15 |
W:C |
0.30 |
0.30 |
0.290 |
0.28 |
W:C |
0.30 |
*Typical properties given above are derived from laboratory testing at 23 ±2°C. Compressive strengths were measured using 50mm cube samples to AS 1012.8.3:2015. Variations are to be expected as a result of changing site conditions, weather, quality of preparation, level of expertise during application & curing.