Precision Cutting and Safe Removal of a Boundary Wall in Kirrawee

Perfect Concrete Care recently completed a specialised concrete cutting and removal project in Kirrawee, delivering a safe, fast and fully controlled solution for a client who required an obstructing boundary wall removed under extremely tight timeframes.

Although the structure appeared simple at first glance—a 70-metre concrete upstand wall, roughly 700–800 mm high—the work involved a complex set of constraints. With a six-metre drop directly behind the wall, asbestos-impacted ground on the working side, and live construction works progressing around us, the project demanded precision, planning and disciplined execution.

This is the type of environment where Perfect Concrete Care excels: high-risk conditions managed through engineered methodology, the right equipment, and a team experienced in specialist cutting and controlled material handling.

Understanding the Challenge

This project presented several technical and environmental challenges that had to be addressed before a blade touched concrete:

1. Working Over a Six-Metre Vertical Drop

The wall sat hard on the edge of a steep fall, meaning no material could fall backward under any circumstances. This eliminated conventional demolition approaches entirely—full control was required from start to finish.

2. Asbestos-Impacted Ground

The operational side of the wall contained asbestos-impacted soil. Although the soil itself was not being disturbed, strict PPE, respiratory protection and procedural controls were implemented in line with our internal asbestos checklist and risk assessment systems .

3. Uncertain Reinforcement & Structural Brittleness

To avoid unexpected panel failures, Perfect Concrete Care conducted scanning to identify reinforcement patterns and confirm no services were present in the cutting path. This informed our lifting plan and cutting sequence, preventing brittle fractures and uncontrolled movement.

4. Live Construction Environment

The site remained active throughout the works. Maintaining exclusion zones, coordinating access, and managing water, slurry and overspray were essential to ensure zero disruption to other trades.

Our Methodology — Engineered for Control

Perfect Concrete Care applied a disciplined, fully documented methodology consistent with our internal systems (AI 10-Key Factors, Scope & Site Visit Checklists) .

Step 1 — Scanning and Verification

The team scanned the full wall length to confirm:

• reinforcement layout
• panel stability
• absence of embedded services

This information allowed us to engineer controlled lift points and determine the safest panel sizing.

Step 2 — Coring for Lift Control

Two 100 mm cores were drilled in each section, creating secure lifting points that ensured load transfer remained predictable during extraction. This helped prevent shear cracks or sudden detachment during cutting.

Step 3 — Horizontal Cutting Using Wall Saw

A continuous 200 mm cut was completed along the base of the wall using a track-mounted wall saw.
Water-cooled cutting generated slurry, which was contained and collected in accordance with our internal waste and environmental systems .

Step 4 — Vertical Panelisation with Ring Saw

Vertical cuts were formed at controlled intervals, creating panels suitable for lifting with a 15-tonne excavator.

Step 5 — Overspray Protection and Slurry Control

A suspended tarp system was installed along the boundary to prevent overspray onto neighbouring properties.
All slurry was vacuumed, contained and removed from the site responsibly.

Step 6 — Panel Lifting and Retrieval

Using a 15-tonne zero-swing excavator fitted with certified lifting gear, each panel was lifted back onto the construction site.

A qualified Dogman/Rigger managed every lift, while a demolition supervisor oversaw safe sequencing and communication.

Step 7 — Processing and Removal

Once placed safely inside the work zone, each panel was broken down into smaller pieces and loaded out as clean concrete for recycling. Chain-of-custody dockets were recorded per our recycling checklist and internal waste management requirements.

Safety as the Foundation

Perfect Concrete Care’s systems prioritise safety at every stage, and this project highlighted the value of that approach.

Controls included:

• Type 5/6 suits and P2 respirators due to asbestos-impacted ground
• Elevated electrical leads and tested & tagged equipment
• Harness use during edge protection installation
• Moving exclusion zones to protect other trades
• Certified lifting chains and up-to-date registers
• Daily prestarts and reinforcement of controls during toolbox talks

Our WHS, environmental and control systems are backed by our Group-wide frameworks, which ensure compliance from planning to delivery.

Delivering Under Pressure

The client was under significant program pressure, as this wall was directly blocking subsequent works. Perfect Concrete Care mobilised quickly, planned thoroughly, and executed efficiently, ensuring the site team could progress without delay.

The project was completed:

• safely
• without incidents
• without impact on adjacent trades
• and within the agreed timeframe

This outcome reflects not just technical capability, but the collaborative approach of our team and the integrated systems we follow across the Perfect Group.

A Result That Demonstrates Our Core Strengths

This project showcases what Perfect Concrete Care stands for:

Precision – engineered cuts, controlled lifts, predictable outcomes.
Safety – risk-driven planning backed by certified systems and qualified personnel.
Problem Solving – adapting to site constraints and designing workable solutions.
Professional Delivery – environmental control, communication, and finishes that satisfy Tier-1 expectations.

Whether the job involves cutting, coring, scanning or complex removal in tight or high-risk environments, our team is equipped to deliver safe and reliable outcomes.