Mass Pour

High-Volume Concrete for Trench and Utility Applications

Mass Pour is a specialised concrete mix designed for trench-filling, backfilling, and large-scale utility applications. This mix ensures efficient construction while maintaining sufficient load-bearing capacity within hours. Cementitous contents are adjusted for the specifics of the job at hand. A more advanced version of these mixes can be used in demanding environments where high resistivity or thermal dissipation is required around electrical utilities.

Key Features 

• Fast Setting – Can achieve sufficient load-bearing capacity within hours depending on specific environmental conditions and performance design.

• Excavation-Friendly – Low compressive strength (1–5 MPa typically) allows for future trench access without damaging infrastructure. 

• Adaptable Mix Design – The actual mix design can be altered to suit your specific performance outcomes.

• Efficient Placement – Designed for direct placement from the truck without pumping. (Can be designed for pumping if required)

• Environmentally Considerate – Suitable for recycled aggregates and substituted cementitous materials, reducing environmental impact. 

Technical Information 

• Compressive Strength: 1–5 MPa 

• Water/Cement Ratio: Varies based on placement method

• Placement Method: Direct truck pour, pumpable versions are available.

• Compliance: Meets NZS 3104 standards 

Applications 

• Trench and utility backfilling 
• Rapid placement
• Roadworks and pavement reinstatement 
• Foundation and subgrade stabilisation 
• Underground cable and pipeline protection 
• Large-scale mass concrete pours 

Advantages 

• Quick and efficient placement – Reduces construction time.  

• Minimal excavation required – Cost-effective solution. 

• Suitable for all soil types – Customisable mix designs. 

• Reduces environmental impact – Can incorporate recycled aggregates and substitute cementitous materials.

Considerations 

• Not suitable for heavy structural loads – Designed for excavation, not reinforcement. 

• Proper soil assessment required – Ensures correct mix selection. 

For expert advice on the right Mass Pour mix for your project, contact us today or request a quote.