CHEMICAL & MECHANICAL BREAKING
OVERVIEW
DXG is proud to be the exclusive Australasian distributor of Rock X and Rock XL expanding grout products and high-performance mechanical rock breaking systems. Our solutions are tailored for projects requiring precision rock removal in sensitive or non-blasting environments such as urban infrastructure, trenching, or close-proximity excavation.
CHEMICAL ROCK BREAKING
Expanding grout is a non-explosive chemical compound used to fracture rock in a controlled manner. Once poured into pre-drilled holes, the grout expands with immense pressure, causing the rock to break apart silently and safely.
Rock X & Rock XL Applications
- Rock X: Ideal for small-diameter holes (<50mm)
- Rock XL: Designed for larger-diameter holes (76–102mm)
These products are perfect for:
- Urban construction zones
- Heritage or noise-sensitive areas
- Remote locations with explosive restrictions
- Trenching and excavation reductions
Why Choose Expanding Grout?
- Silent and vibration-free
- No permits required for explosives
- Low impact on nearby structures or boundaries
- Safe for workers and sensitive receivers
- Eco-friendly and dust-minimising
Looking for Chemical Breaking services?
MECHANICAL ROCK BREAKING
In addition to our chemical breaking solutions, DXG can also provide mechanical rock breaking systems for projects that require immediate or highly controlled splitting. These systems are effective in specific site conditions and can offer a fast, forceful alternative to expanding grout.
If you believe mechanical breaking may be appropriate for your project, please get in touch with our team. We’ll assess your site requirements and advise on the most suitable and compliant approach for safe and effective rock removal.
SENSITIVE ZONES
DXG’s field experience ensures professional, site-compliant rock breaking solutions in high-sensitivity areas such as:
- Hospitals and schools
- Rail corridors
- Heritage precincts
- Dense residential and urban zones
Our team provides onsite assessment, technical support, and customised breaking strategies for minimal disruption.
FAQ
What is chemical rock breaking, and how does it work?
Chemical rock breaking uses expanding grout compounds (such as Rock X and Rock XL) that, when mixed with water and poured into pre-drilled holes, generate expansive pressure as they cure. This pressure fractures the rock safely, silently, and without vibration, making it ideal for sensitive or regulated environments.
What are the differences between Rock X and Rock XL?
Rock X is formulated for small-diameter holes (under 50mm)
Rock XL is designed for larger-diameter holes (76–102mm)
Both products are engineered for use in non-explosive rock removal, but selection depends on hole size and site conditions.
When is mechanical rock breaking preferred over chemical methods?
Mechanical breaking is ideal when:
• Immediate splitting is required
• Depths up to 5ft need to be addressed
• Hole diameters are 100mm or 150mm
• Projects demand controlled, directional force and high break-out strength (300+ tonnes)
Is chemical rock breaking safe for use near buildings and underground services?
Yes. Expanding grout causes no vibration, no flying debris, and produces minimal noise, making it exceptionally safe for work near:
- Structures
- Utilities
- Property boundaries
- Sensitive receivers (like hospitals, schools, or heritage sites)
What kind of rock can be broken with Rock X/XL?
Expanding grout works effectively on:
- Hard rock (e.g., granite, basalt)
- Medium rock (e.g., limestone, sandstone)
- Even reinforced concrete when drilled appropriately. The effectiveness depends on hole placement, depth, and site temperature—DXG provides expert advice on all of these.
Do I need a blasting license or special permits?
No. One of the major advantages of chemical rock breaking is that it does not require blasting licenses or explosive permits, greatly simplifying project approvals and timelines.
Can DXG provide full rock breaking services or just product supply?
DXG offers both:
- Direct supply of Rock X, Rock XL, and mechanical splitting systems
- Full-service solutions, including onsite assessments, hole drilling coordination, and grout or mechanical system deployment
How close can you break rock to existing infrastructure?
In many cases, rock can be broken right up to property boundaries or sensitive assets, depending on the site. All works are subject to site-specific risk assessments and compliance reviews, which DXG can assist with.
What is the environmental impact of using expanding grout?
Expanding grout is non-toxic, non-explosive, and produces no harmful emissions or loud noise.
It’s considered a low-impact, environmentally friendly alternative to blasting.
How do I get started with DXG’s rock breaking solutions?
Simply contact our team via phone or email. We’ll help you determine the right solution based on your project requirements, site conditions, and compliance needs.
Can Rock X and Rock XL be used in all ground temperature conditions?
Yes – Rock X and Rock XL is available in 3 different variations for differing ground temperatures from -5c to over 30c.