MACt Shrinkage Reducing Admixture

MACt Shrinkage Reducing Powdered Admixture is a specialised formula designed to mitigate shrinkage cracking in concrete and GFRC (Glass Fibre Reinforced Concrete). By adjusting the rate of hydration, strengthening the final product, and enhancing workability, this admixture serves as a critical component for contractors and DIY enthusiasts seeking high-quality, durable finishes. Ideal for decorative or heavy-use applications, MACt Shrinkage Reducing Admixture helps achieve smoother, more consistent surfaces—free from unsightly cracks or blemishes.

Key Features & Benefits

1. Reduced Shrinkage Cracking
   • Hydration Control: Slows the drying process, minimising the volume changes that cause shrinkage.
   • Consistent Finish: Helps achieve smoother surfaces with fewer cracks and defects.
2. Enhanced Strength & Durability
   • Chemical Compounds: Increases resistance to environmental stressors like temperature fluctuations or humidity.
   • Extended Product Lifespan: Reinforced concrete/GFRC withstands daily wear, ultimately reducing maintenance costs.
3. Improved Workability
   • Easier Pour & Finishing: Produces a more user-friendly mixture, beneficial for both professionals and hobbyists.
   • Versatile Applications: Suitable for decorative elements, high-traffic surfaces, or intricate mould work.
4. Superior Appearance
   • Minimal Cracking: Fewer blemishes and a more uniform look, particularly valuable for decorative or highly visible projects.
   • Professional Results: Achieves consistent colour and texture across the entire surface.

Recommended Usage & Dosage

• Dosage Range: 0.5–5% of total cementitious content, equivalent to 50–500g per 20kg premix.
• Optimal Concentration: Varies based on mix design and project requirements; test accordingly for best results.
• Mixing Procedure: Add admixture to the water prior to introducing cementitious materials, ensuring even dispersion throughout the batch.

How it Works

1. Altering Hydration Rate
   • Admixture ingredients regulate how quickly cement hydrates, reducing internal stresses that lead to cracking.
2. Strengthening Final Product
   • Special chemical compounds fortify the concrete or GFRC, yielding a robust, long-lasting material.
3. Improving Workability
   • Enhances flow and consistency, making the mixture easier to place, shape, and finish—especially vital for detailed or large-scale pours.
4. Aesthetic Advantages
   • Creates a smoother surface, free of hairline cracks or unsightly blemishes, enhancing overall visual appeal.

Storage & Handling

• Container Integrity: Keep sealed in its original packaging in a dry, temperature-controlled environment.
• Shelf Life: Properly stored, the product retains effectiveness for an extended period; consult packaging for specific guidance.
• Safety Precautions: Follow SDS guidelines, use protective equipment when handling and mixing to ensure a safe worksite.

Why Choose MACt Shrinkage Reducing Powdered Admixture?

• Reliable Shrinkage Control: Minimises cracking through precise management of concrete or GFRC hydration.
• Versatile Adaptation: Suitable for diverse applications—from decorative finishes to structural elements.
• Improved Aesthetics: Produces a cleaner, more uniform surface across the final product.
• Longevity & Durability: Reinforces material strength, maintaining quality under changing conditions and heavy use.
• User-Friendly Mixing: Straightforward dosage and mixing procedures ensure consistent results, whether you’re a seasoned contractor or a first-time user.

MACt Shrinkage Reducing Powdered Admixture is a game-changing solution for achieving crack-free, durable, and visually pleasing concrete or GFRC projects. By controlling the rate of hydration, improving workability, and reinforcing the final product against environmental stress, this admixture significantly reduces shrinkage-related issues. Whether you’re crafting architectural masterpieces, decorative elements, or practical installations, rely on MACt’s proven formula to help you produce professional, long-lasting outcomes.