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Block Fill Concrete Yass – Reliable, Strong, and Built for Structural Integrity
At Yass Premix Concrete, we supply high-quality block fill concrete for residential, commercial, and industrial projects across Yass and surrounding areas. Designed specifically to fill the cores of concrete masonry blocks, block fill provides essential structural support and fire resistance for retaining walls, boundary walls, load-bearing walls, and other blockwork applications.
Whether you’re a builder, landscaper, or contractor, our reliable block fill mixes offer the strength and consistency required to meet engineering specifications and deliver long-lasting results.
What Is Block Fill Concrete?
Block fill (also known as core fill) is a specialised concrete mix with a higher flowability, designed to be pumped or poured into hollow concrete blocks to reinforce them. Once cured, it forms a solid, load-bearing structure within the masonry, adding strength, durability, and fire resistance.
Our block fill mixes at Yass Premix Concrete are made with precision at our state-of-the-art batching plant to ensure a consistent and workable product every time.
Applications of Block Fill
Block fill is commonly used in:
Retaining walls
Basement and foundation walls
Boundary and acoustic walls
Load-bearing structures
Commercial and industrial blockwork
Civil construction and infrastructure
Block fill is often required for council-approved projects and structural designs that involve masonry construction. It plays a critical role in ensuring the integrity and safety of block walls over time.

Why Use Block Fill?
Structural Strength: Increases the load-bearing capacity of block walls and improves structural stability.
Fire Resistance: Enhances the fire rating of masonry structures, making it ideal for both residential and commercial builds.
Improved Durability: Helps prevent cracking, bulging, or failure of walls under load or in poor soil conditions.
Consistent Flow: Our block fill mix is pumpable and easy to place, ensuring full coverage inside masonry cores.
Compliance Ready: Meets Australian Standards for core-filled masonry construction.
Why Choose Yass Premix Concrete?
At Yass Premix Concrete, we’re committed to delivering more than just concrete—we deliver performance, reliability, and service that keeps your project on track.
Tailored Mixes: Our block fill mixes are designed to suit your project’s specifications, with adjustable strength, slump, and flowability.
Consistent Quality: With our modern batching plant, every load is produced with precision and care.
Prompt Delivery: We understand the importance of timing in construction. Our reliable delivery ensures your block fill arrives exactly when you need it.
Experienced Support: Need guidance? Our experienced team can help you choose the right mix and quantity for your job.
Locally Owned and Operated: Based in Yass, we proudly support local trades, builders, and contractors.

Order Block Fill Concrete Today
If you’re looking for high-quality block fill concrete in Yass, trust the team at Yass Premix Concrete. We supply durable, compliant, and easy-to-use concrete mixes tailored to your needs. Contact us today to place an order or speak with our team about your upcoming project. We’re here to help you build stronger, safer, and more reliable structures—every time.