Cutting through concrete isn’t easy. It takes skill, precision, and the right tools. Whether you’re making openings for doors, windows, or ventilation, concrete cutting requires specialised equipment. Wall sawing is one of the most effective ways to achieve clean, precise cuts in concrete structures. It’s used in construction, renovation, and demolition projects where accuracy is critical.

If you’re planning a project that involves cutting through concrete walls, here’s what you need to know.

How Wall Sawing Works

Wall sawing uses a circular diamond blade mounted on a track system. The saw moves along the track, making controlled cuts in vertical or horizontal concrete surfaces. This method ensures straight lines, reduces vibrations, and prevents structural damage.

Unlike handheld saws, track-mounted systems provide greater stability. They cut through reinforced concrete, masonry, and other tough materials with minimal effort. Operators can adjust the depth and angle of the cut, making it ideal for precise modifications.

Key Features of Wall Sawing:

• Track-Mounted System: Ensures accurate, controlled cuts
• Diamond Blades: Designed to cut through reinforced concrete
• Low Vibration: Prevents cracking and structural damage
• Precision Cutting: Ideal for doors, windows, and openings

For those looking to invest in cutting equipment, understanding wall-mounted saws for concrete cutting is essential.

Common Applications of Wall Sawing

Wall sawing is used in various construction and demolition projects. It’s the go-to method when precision and efficiency matter.

Where Wall Sawing is Used:

1. Creating Openings: Ideal for cutting doors, windows, and ventilation shafts
2. Structural Modifications: Used in renovations and extensions
3. Bridge and Road Work: Helps remove sections of concrete safely
4. Demolition Projects: Cuts walls into manageable sections
5. Utility Installations: Creates space for plumbing, electrical, and HVAC systems

For example, during a high-rise renovation in Sydney, contractors used wall saws to cut openings for new elevators. The controlled cutting process ensured no unnecessary damage to the surrounding structure.

To achieve the best results, professionals rely on concrete wall sawing techniques suited to each project’s needs.

Types of Wall Sawing Blades and Equipment

Different projects require different blades and saws. Choosing the right equipment ensures efficiency and precision.

Types of Blades Used in Wall Sawing:

• Standard Diamond Blades: Used for general concrete cutting
• Segmented Diamond Blades: Designed for faster cuts in thick concrete
• Continuous Rim Blades: Provides smooth cuts with minimal chipping
• Turbo Rim Blades: Combines speed and smooth cutting for versatility

Key Equipment for Wall Sawing:

• Electric Wall Saws: Best for indoor projects with limited ventilation
• Hydraulic Wall Saws: Powerful and efficient, ideal for deep cutting
• Remote-Controlled Wall Saws: Enhance safety by keeping operators at a distance

Selecting the right combination of blade and saw ensures a smooth cutting process. Professionals often assess material density, cut depth, and environmental factors before choosing equipment.

Safety Considerations in Wall Sawing

Wall sawing involves high-speed blades and heavy machinery. Without proper precautions, it can be dangerous.

Essential Safety Measures:

• Wear Protective Gear: Safety glasses, gloves, hearing protection, and dust masks are essential
• Secure the Work Area: Keep bystanders at a safe distance
• Inspect Equipment Before Use: Ensure the saw and blade are in good condition
• Control Dust and Debris: Use water suppression or vacuum systems to reduce airborne particles
• Follow Manufacturer Guidelines: Operating the saw correctly prevents accidents

For large-scale projects, trained professionals handle wall sawing to ensure safety and efficiency.

Future Trends in Wall Sawing

Technology is improving how concrete cutting is done. Innovations in blade materials, automation, and dust control are shaping the future of wall sawing.

Emerging Trends in the Industry:

• Advanced Diamond Blades: Stronger and longer-lasting blades improve efficiency
• Automated Cutting Systems: Robotics and AI enhance precision and reduce labour costs
• Eco-Friendly Solutions: Water-based dust suppression systems improve air quality
• Cordless Electric Saws: Reduce reliance on fuel-powered equipment, making worksites cleaner

As demand for sustainable construction grows, companies are investing in safer, cleaner cutting methods. The future of wall sawing will focus on reducing environmental impact while improving speed and accuracy.

1) What is the difference between wall sawing and slab sawing?
Wall sawing is used for cutting vertical or angled concrete surfaces, such as walls and columns. It uses a track-mounted system for precision and stability. In contrast, slab sawing, also known as floor sawing, is designed for cutting horizontal surfaces like floors, pavements, and bridge decks. Slab saws are typically walk-behind machines that allow operators to make straight, deep cuts in large concrete areas. Wall sawing is ideal for creating openings for doors and windows, while slab sawing is commonly used in roadwork, trench cutting, and foundation modifications. Both methods require specialised equipment and skilled operators for accurate results.

2) Can wall sawing be used on reinforced concrete?
Yes, wall sawing is specifically designed for cutting through reinforced concrete, including structures with embedded steel rebar. Diamond blades are engineered to handle tough materials, ensuring clean, precise cuts without damaging the saw or causing excessive wear. This makes wall sawing a preferred method for construction, renovation, and demolition projects. Reinforced concrete is commonly found in high-rise buildings, bridges, and industrial facilities, so cutting through it efficiently is essential. Professionals use high-powered electric or hydraulic saws to achieve the required depth and accuracy. Proper technique and equipment selection help maintain structural integrity while making necessary modifications.

3) How deep can a wall saw cut?
The cutting depth of a wall saw depends on the blade size, power source, and material being cut. Standard wall saws can cut up to 600mm deep in a single pass. For deeper cuts, operators may need to make multiple passes or use larger, more powerful hydraulic or electric saws. Some advanced wall saws can achieve depths of over 1 metre with specialised blades and setups. The thickness of the concrete, presence of reinforcement, and project requirements determine the best approach. Professionals assess these factors to ensure efficient cutting without compromising safety or structural stability.

4) Is wall sawing noisy and dusty?
Wall sawing generates noise and dust, but modern equipment and techniques help reduce these issues. Most wall saws operate at high speeds, creating noise levels that require operators to wear hearing protection. Dust is a common concern, especially in indoor or enclosed spaces. To control dust, contractors use water suppression systems or industrial vacuum extractors. Water-cooled diamond blades help minimise airborne particles, improving visibility and air quality. Noise-reducing technologies and blade advancements also contribute to quieter operations. Proper safety measures, including personal protective equipment (PPE), ensure a cleaner, safer work environment for both workers and surrounding areas.

5) How much does wall sawing cost?
Wall sawing costs vary depending on several factors, including the thickness of the concrete, cutting depth, project complexity, and location. On average, professional wall sawing services are priced per metre of cut, with additional costs for reinforced concrete or challenging access areas. Other factors, such as equipment type, blade wear, and disposal of cut materials, also affect pricing. Small residential projects may cost a few hundred dollars, while large-scale commercial or industrial work can run into thousands. For an accurate estimate, it’s best to consult a professional contractor who can assess project needs and provide a detailed quote.

Get Expert Concrete Cutting Solutions

Wall sawing is an essential technique in construction and renovation. It provides precise cuts for modifications, openings, and demolitions. With the right equipment and safety measures, it ensures efficiency and structural integrity.

If you’re planning a project that requires professional concrete cutting, visit Megasaw for expert services and solutions.

Please call us today on 1300 920 419 or leave an enquiry.

Cutting concrete requires the right tools and techniques to get the job done efficiently. Two common methods are hand sawing and ring sawing. While both are used to cut concrete, each has unique strengths. Choosing the right one depends on the depth of the cut, the material, and the project’s requirements. Understanding these methods helps in selecting the best option for accuracy, speed, and cost.

If you’re looking for concrete cutting solutions, knowing the differences between hand sawing and ring sawing can save time and effort. Let’s break it down.

Understanding Hand Sawing

Hand sawing is a versatile and portable method used for small to medium concrete cutting tasks. These saws are typically powered by electricity, petrol, or hydraulics, making them suitable for indoor and outdoor projects.

Key Features of Hand Sawing

• Precision cutting – Hand saws provide control, making them ideal for cutting straight lines or shaping openings.
• Portability – Their compact size allows for easy handling in tight spaces.
• Shallow cutting depth – Most hand saws cut up to 150mm deep, making them best for surface cuts.

Hand saws are commonly used for:

• Cutting concrete slabs, walls, and floors
• Removing small sections of concrete for repairs
• Creating expansion joints in sidewalks or driveways

For a detailed look at hand sawing techniques, check out hand sawing techniques.

Understanding Ring Sawing

Ring sawing is designed for deep concrete cutting where traditional saws fall short. Unlike hand saws, ring saws have a blade that rotates around its own axis, allowing for deeper cuts without needing a larger machine.

Key Features of Ring Sawing

• Deeper cutting capabilities – Cuts up to 270mm deep, making it ideal for thicker concrete.
• Minimal overcutting – The blade design allows for flush cutting without damaging surrounding surfaces.
• Fast and efficient – Higher speed and power mean quicker cutting in tough materials.

Ring saws are used for:

• Deep cuts in concrete walls and floors
• Creating openings for windows, doors, or vents
• Cutting reinforced concrete without excessive force

For more insights on deep concrete cutting, visit deep concrete cutting with ring saws.

Key Differences Between Hand Sawing and Ring Sawing

Both methods serve specific purposes, but they differ in technique, depth, and application.

1. Cutting Depth

• Hand saws cut up to 150mm deep, making them better for surface-level work.
• Ring saws cut up to 270mm deep, handling thicker concrete slabs.

2. Precision and Control

• Hand saws offer better manual control for intricate cuts.
• Ring saws allow for cleaner, deeper cuts with less effort.

3. Speed and Efficiency

• Hand saws require more manual effort but are ideal for smaller jobs.
• Ring saws cut faster and deeper, making them efficient for large-scale projects.

4. Portability and Accessibility

• Hand saws are lightweight and easy to handle in confined spaces.
• Ring saws, while portable, require more skill and safety precautions.

For a closer look at this method, check out hand sawing.

Practical Applications of Hand and Ring Sawing

Choosing the right method depends on the project’s demands. Here are some real-world examples.

Example 1: Cutting Door Openings in Concrete Walls

A renovation project required cutting precise openings for new doorways in a concrete building. Hand sawing was used to create initial guide cuts, ensuring accuracy and control. However, the walls were over 200mm thick, requiring a ring saw to complete the cuts without overcutting the edges.

Example 2: Expanding Underground Utility Access

A construction team needed to enlarge underground service openings. Hand saws were used for surface scoring, followed by ring saws for deep penetration cuts, allowing precise removal of thick concrete slabs.

For more details on this method, visit ring sawing.

Which Method Should You Choose?

Deciding between hand sawing and ring sawing depends on:

• Project size – Hand saws work well for small cuts, while ring saws handle large, deep cuts.
• Depth requirements – If cutting beyond 150mm, a ring saw is the better choice.
• Surface conditions – Tight spaces may require hand sawing, but thick surfaces demand ring sawing.

Both tools have their place, and in some cases, using both methods together ensures the best results.

FAQs

1) When should I use hand sawing over ring sawing?
Hand sawing is best for projects requiring precision, shallow cuts, and tight-space access. It’s commonly used for floor joints, small openings in walls, and minor concrete repairs. Since hand saws are lightweight and easy to manoeuvre, they are ideal for jobs requiring detailed control. However, they have a cutting depth limit of around 150mm. If you need to cut deeper concrete slabs or walls, a ring saw is the better choice. Hand sawing is also preferred for indoor projects where large machinery isn’t practical due to space constraints or ventilation concerns.

2) Is ring sawing more expensive than hand sawing?
Yes, ring sawing typically costs more due to its advanced cutting technology, deeper penetration, and specialised blade system. The equipment itself is more expensive, and the high-powered operation leads to increased fuel or energy consumption. However, ring saws cut faster and deeper, reducing overall labour time. This makes them more cost-effective for large-scale projects where time efficiency is critical. If a project involves cutting thick, reinforced concrete, using a ring saw may be a better long-term investment despite the higher initial cost, as it speeds up work and reduces manual effort.

3) Can ring saws cut reinforced concrete?
Yes, ring saws are designed to cut through reinforced concrete, making them ideal for structural modifications, demolition work, and deep penetration cuts. Unlike traditional saws, ring saws generate higher power and torque, allowing them to slice through steel reinforcements embedded in concrete. Their unique blade design reduces the risk of overcutting, making them effective for precision structural work. This makes ring saws a preferred choice for cutting through thick walls, heavy slabs, or load-bearing structures where steel reinforcement is present. Their ability to handle both concrete and embedded metal makes them a versatile tool in construction.

4) What safety precautions should I take when using these saws?
When using hand or ring saws, wear protective gear such as gloves, safety glasses, hearing protection, and a dust mask to prevent inhaling fine concrete particles. Ensure proper ventilation, especially when using petrol-powered saws indoors, as fumes can build up quickly. Maintain a firm grip with both hands to prevent kickback or loss of control. Always inspect the blade before and after use for signs of wear or damage. Use correct cutting techniques to avoid injuries, and ensure the work area is clear of debris. Following these precautions significantly reduces the risk of accidents.

5) Can I use both hand sawing and ring sawing on the same project?
Yes, many professionals combine hand sawing and ring sawing for efficient and precise concrete cutting. Hand sawing is often used for initial scoring, marking out cuts, or making smaller adjustments, while ring sawing is utilised for deep, clean cuts. For example, when creating a doorway in a thick concrete wall, a hand saw might start the cut with precision, and a ring saw would complete the deeper sections. Using both methods ensures cleaner cuts, reduces overcutting, and speeds up the process, making them complementary tools in construction and renovation projects.

Find the Right Concrete Cutting Solution

Both hand sawing and ring sawing have their advantages. Hand sawing works well for precise, shallow cuts, while ring sawing excels at deep, efficient cutting. Understanding their differences helps in selecting the right tool for your project.

If you need professional concrete cutting services, visit Megasaw to find the best solution for your needs.

Please call us today on 1300 920 419 or leave an enquiry.

When it comes to concrete cutting, concrete saw blades are essential tools for anyone. If you’re involved in construction, renovation, or DIY projects involving concrete, then choosing the right blade can make a significant difference in the efficiency and quality of your work. 

This guide will walk you through the key considerations and types of concrete saw blades, helping you make an informed purchase.

Understanding Concrete Saw Blades

Concrete saw blades are specialised cutting tools designed to slice through concrete and other hard materials. They are typically used with concrete saws or angle grinders. These blades are made from robust materials like steel and often have a diamond coating, which enhances their cutting power and longevity.

Types of Concrete Saw Blades

1. Segmented Blades: These blades have a rim divided into segments, which allows for efficient cooling and debris removal. They are ideal for cutting hard materials such as concrete, brick, and masonry.

2. Turbo Blades: Featuring a continuous rim with serrated edges, turbo blades offer faster cutting speeds and smoother finishes. They are versatile and can be used for both wet and dry cutting.

3. Continuous Rim Blades: These blades have a smooth, continuous edge and are best suited for wet cutting. They provide the cleanest cuts and are ideal for precise work.

4. Electroplated Blades: These are designed for cutting soft stones and other non-concrete materials. They have diamond particles electroplated onto the blade, providing a sharp edge for detailed cutting.

Key Considerations When Buying a Concrete Saw Blade

The first factor to consider is the material you will be cutting. Different blades are designed for different materials. For instance, a blade meant for asphalt will differ from one designed for reinforced concrete. Ensure the blade you choose is suitable for the specific material you will be working with.

Concrete saw blades can be used for wet or dry cutting. Wet cutting involves using water to cool the blade and reduce dust, while dry cutting does not use water. Wet cutting blades are generally preferred for longer, continuous use as they last longer and produce less dust. Dry cutting blades are more convenient for quick, less frequent cuts.

The size of the blade is crucial and should match the specifications of your saw. Blade sizes range from small (4-5 inches) for handheld saws to large (14 inches or more) for walk-behind saws. Ensure your saw can accommodate the blade size you choose.

The arbor size, or the hole in the centre of the blade, must match the arbor size of your saw. Using a blade with the wrong arbor size can result in poor performance or damage to the equipment.

Investing in a high-quality blade can save you time and money in the long run. High-quality blades are more durable, provide cleaner cuts, and have a longer lifespan. Look for blades from reputable manufacturers and check customer reviews.

While it might be tempting to choose the cheapest option, consider the cost-per-cut rather than the upfront cost. A more expensive blade that lasts longer and cuts more efficiently may be more economical in the long run.

Top Brands to Consider

When it comes to concrete saw blades, several brands are known for their quality and reliability. Some of the top brands include:

• Bosch: Known for their durable and high-performance blades.
• Dewalt: Offers a range of blades suitable for different materials and applications.
• Makita: Renowned for their innovative designs and long-lasting blades.
• Hilti: Specialises in professional-grade blades with superior cutting performance.

Tips for Using Concrete Saw Blades

Always prioritise safety when using concrete saw blades. Wear appropriate protective gear, including safety glasses, gloves, and hearing protection. Ensure your work area is well-ventilated, especially if you’re cutting dry, to minimise dust inhalation.

Make sure the blade is installed correctly on your saw. Follow the manufacturer’s instructions to ensure the blade is secured properly. An incorrectly installed blade can be dangerous and result in poor performance.

Regularly check your blade for signs of wear or damage. Replace the blade if you notice any cracks, missing segments, or significant wear. Clean the blade after each use to remove debris and prolong its life.

Use the correct cutting technique to maximise the blade’s efficiency and lifespan. Allow the saw to reach full speed before making contact with the material. Apply steady, even pressure without forcing the blade. For deeper cuts, make several shallow passes rather than a single deep cut.

Environmental and Safety Considerations

Cutting concrete generates a significant amount of dust, which can be harmful if inhaled. Wet cutting can help reduce dust, but if you must dry cut, consider using a dust extraction system or a saw equipped with dust control features.

Concrete cutting can be noisy, which may not only be disruptive but also harmful to your hearing. Always wear hearing protection and be mindful of noise regulations in your area.

Consider the environmental impact of your work. Wet cutting can create slurry, which needs to be managed to prevent contamination. Ensure proper disposal of any waste generated during your cutting projects.

Final Thoughts

Choosing the right concrete saw blade is crucial for the success of your cutting projects. By considering the material, cutting method, blade size, arbor size, quality, and cost, you can find a blade that meets your needs and provides efficient, high-quality cuts. 

Always prioritise safety and proper blade maintenance to ensure optimal performance and longevity. With the right blade, your concrete cutting tasks will be smoother, faster, and more precise.

For those seeking professional, reliable, and precise concrete cutting services, consider Megasaw. With a team of experienced professionals and a fleet of state-of-the-art equipment, Megsaw is prepared to handle all your concrete cutting needs, ensuring quality and precision with every cut. 

Please call us today on 1300 920 419 or leave an enquiry.

We’ve all come across a footpath; however, have you ever noticed that they have gaps or lines in between them? Better yet, have you ever wondered why there are gaps or lines in the first place?

These gaps are not placed in concrete footpaths for design purposes; rather, these gaps are intentionally added to help keep the concrete’s structural integrity intact. However, how do they do this? If you have often wondered about this, then we’re here to help provide all the answers you are looking for. If you would like to learn more, please continue reading below.

The Purpose Of Concrete Footpath Gaps

When concrete and other common construction materials are subjected to changes in extreme temperatures, they can be prone to expanding and contracting. If concrete is poured as one long slab, expansion and contraction due to the weather’s temperature can lead to cracks, buckles, and breaks.

As such, one way to avoid this from happening is by adding uniformed and evenly spaced gaps. These gaps are known as expansion joints, which are designed to let concrete have room to expand and contract without damaging its structural integrity. 

When concrete dries, it can also be prone to shrinkage. With the introduction of expansion joints, when the concrete dries and shrinks cracks that may form as a result should form in the path of the expansion joints. This is because this is where the concrete is the thinnest. If the cracks follow the expansion joints, the cracks won’t appear so bad. 

These cracks are installed by concrete sawing machines, special grooving tools, or plastic strips known as zip-strips. The joints should be placed deep enough to ensure that the cracks appear in the right or preferred places.

Therefore, if the concrete is constructed properly, it can be resistant to cracking due to expansion and/or contraction from changes in temperature. Of course, this will keep the concrete crack-resistant for quite some time.

Why Do Concrete Footpaths Crack?

While concrete is recognised as a long-lasting building material, at some point in its lifetime it will inevitably develop cracks – it’s just a matter of when. 

Concrete will be even more prone to cracking if it is subject to poor construction such as incorrect blending of cement mixture or not properly curing the concrete slab. Both of these problems can lead to premature cracking and the development of structural problems with the concrete. 

Additionally, cracks in concrete can also arise due to voids in the soil below the slab. If a new concrete slab is poured on a poorly-compacted surface, this can trap empty pockets of air in the soil. Over time as the soil begins to settle in those pockets, the concrete slab can sink and crack. 

Well-built concrete footpaths can still be prone to cracks, but with proper construction practices, this can be delayed as much as possible. Therefore, precautionary measures such as expansion joints are one way by which concrete cracks can be controlled and mitigated in the future.

Repairing Concrete Cracks

When it comes to repairing concrete footpath cracks, you can either replace the broken portions or carry out a slab jacking repair.

Replacement can be quite costly given that you will need to remove the old slab and construct a new one. You also have to consider whether the underlying soil needs to be stabilised, because if it isn’t stabilised and you add a new concrete slab then it will pretty much develop the same problem. 

Slab jacking is less expensive and can fill voids in the soil so that cracks are prevented. It is also quick, easy, and mess-free. Once the job is finished, the footpath will be levelled and restored. 

Summary

Concrete footpaths have gaps between them by design. Since concrete is prone to expansion and contraction from weather temperatures or during the drying process, cracks, buckles, and breaks can easily form. 

With gaps or expansion joints, cracks will be more easily controlled and concentrated on specific areas. While cracks are inevitable, expansion joints are just one way to put them off for as long as possible.

When it comes to concrete cutting, if you need concrete cutting performed safely and reliably, be it commercial or residential, please call us at MEGASAW.

We have over 20 years of experience providing quality concrete cutting services all over Melbourne. Our experience is your guarantee!

Please call us today on 1300 920 419 or leave an inquiry.

Many large-scale construction projects require an element of concrete sawing and drilling. However, have you ever wondered how this process is carried out?

Before concrete cutting and drilling is carried out, many contractors perform concrete scanning, a process that uses non-destructive technology to detect underground debris that could potentially be damaged or cause damage in the process of concrete cutting.

As such, if you plan to carry out a construction project that involves locating structures such as drainpipes, you should perform concrete scanning beforehand. 

What Is Concrete Scanning?

As previously mentioned, concrete scanning makes use of non-destructive technology such as ground-penetrating radar (GPR), a ferroscan instrument, a cover meter, or ultrasonic scanning equipment to scan concrete in various depth ranges and conditions. 

Ideally, you should always scan concrete if you are planning to perform drilling, coring, cutting, and other types of destructive work. Concrete scanning can be especially useful and helpful if you plan to perform the following:

• Subsurface utility engineering
• Underground utility locating
• Private utility locating
• Utility location within the existing concrete
• Planning and preparing for CCTV, video, or other pipe inspections
• Preconstruction utility mapping
• Safety hazard recognition, marking, and avoidance

However, detecting anomalies is not where concrete scanning stops. Once these anomalies have been detected they will be interpreted by highly experienced engineers who will advise the construction project on how to appropriately move forward.

From here, you’ll be able to make markings of dangerous spots to perform destructive action, saving you both time, money, and of course, resources in your intended construction project.

What Can Concrete Scanning Locate?

Concrete scanning is capable of detecting the following:

• Drain pipes
• Post-tension cables
• Voids
• Electrical conduits
• Gas pipes
• Water lines
• Various PVC conduits
• Leaks
• Other hidden objects 

They can also be used to conduct a structural review that includes rebar spacing and concrete slab measurements. The best part is that results can be produced on-site and in real-time, which leads to both minimal disruption and costs.

Is Concrete Scanning A Safety Measure?

The short answer: yes. Concrete scanning is not only designed to help you visualise underground anomalies you may not be able to see before performing destructive work, but it is an imperative safety measure to take.

For example, damage to post-tension cables and rebar can pose extremely dangerous safety hazards that can lead to structural failure, injury, and even death on site. Damage to electrical components within the concrete can also cause electrocution and death. 

As such, concrete scanning is not only helpful for your construction project but will keep your workers safe from possible hazards, while also providing you with a safe plan to move forward.

What Else Can Concrete Scanning Do?

Did you know that you can scan vertical surfaces? That’s right! You can even detect drain pipes in ceilings or vertical walls because GPR equipment is capable of locating rebar in concrete walls and columns. 

Concrete scanning can even be used to scan underneath floors and mark reinforcing steel or other embedded conduits. 

Concrete scanning can also help differentiate between rebar and a conduit. Generally, these two can produce the same GPR readings; however, there are subtle differences particularly in the pattern and spacing of rebar. If the rebar has a break, more often than not this means that there is a conduit.

However, it is also important to remember that concrete scanning cannot see through concrete! GPR can only detect embedded materials or voids. 

Final Thoughts

If your original plan was to just locate a drain pipe in concrete before cutting the concrete, then you’ll be surprised to know that the latest technology today can do much more than just detecting drain pipes!

Concrete scanning can be used to locate all sorts of sites and spaces unseen to the human eye, such as post-tension cables, voids, electrical conduits, and others that can potentially cause structural damage and pose disastrous safety hazards.

So, while concrete scanning will allow you to have a better idea of where to safely cut concrete, concrete scanning can also protect your workers and prevent you from wasting time, money, and resources!

If you need concrete sawing performed safely and reliably, be it commercial or residential, please call us at MEGASAW. We have over 20 years of experience providing quality concrete cutting services all over Melbourne. Our experience is your guarantee!

Please call us today on 1300 920 419 or contact us through our website.

Cutting concrete is a tough enough job. It is even tougher to saw straight through a thick slab with a concrete saw. However, there are ways to make the work easier by using the right technique.

So whether you need to saw straight on concrete slabs, walls, floors, etc, follow our easy steps to make sure that you cut straight with a concrete saw.

Safety First

Before you start, make sure you wear proper protection to prevent accidents and harming yourself. Wear the following:

• Heavy longsleeved shirt and pants
• Shin guards
• Knee pads
• Steel-toed boots
• Eye protection
• Ear protection
• Full face shield
• High-filtration dust mask

Materials and Tools

• Concrete Saw preferably using a diamond blade
• Drop cloths
• Duct tape
• Chalk
• Measuring tools
• A ground fault circuit interrupter (protection for the extension cord)
• Garden hose
• Scrap wood the length of your cut (to work as a guide)
• Wet or dry vacuum
• Sledgehammer
• Prybar
• Claw hammer (optional)
• Mason chisel (optional)
• Broom
• Dustpan

Preparation

• Clean the area of debris, mess, and obstructions. 
• Make sure the area is safe and everyone is at a safe distance. 
• Put on all your safety gear and equipment. 
• Test the concrete saw to make sure it is working properly.

Step 1

Choose the process you are going to use – are you dry-cutting or wet-cutting? There are different types of diamond blades for a concrete saw.

There is one specifically designed for wet sawing and there is one for dry sawing.  Wet sawing is most preferable because it produces much less dust and is less stressful for the concrete blade.

Wet cutting requires the use of water so have your water hose ready and make sure the water pressure is reliable.

Step 2

Prepare the work area. If you are working in an enclosed space, tape drop cloths to any doors, windows and any air intakes to make sure that the dust and flying debris do not enter the other parts of your home or building. 

If you are working in an open space, make sure that you have enough space away from people and anything that will break. Only authorised and necessary personnel and workers should be within the vicinity.

Step 3

Measure and mark the spots you are going to cut. Apply the lines as thick as possible. Try to get waterproof markers or chalk so the marks won’t disappear once you start cutting and the water trickles over the markings.

Step 4

Position the garden hose properly so it will hit the diamond blade generously and the water will trickle down to where the blade makes contact with the concrete.

This will ensure that the blade is kept cool and the dust does not become airborne. The water stream should be steady and consistent.

Doing this is easy when you are working on a horizontal area like floors, pavements, and roads. For vertical spaces like a wall, it is more challenging to keep the water stable and on point.

You will require assistance from another worker or two to keep the water jet spraying on the blade and the marked area while you focus on the sawing.

Step 5

Position the scrap wood (preferably 1 inch thick) along the outside of the marked lines. This will serve as a guide as you cut along making sure that the line is straight.

Step 6

Before turning on the concrete saw, set the depth lever or the knob to half an inch deep. This will ensure that the cuts you make will not go over half an inch deep.

Doing shallow cuts will give you more control and help your blade to cool off. This is a better strategy than cutting deep all at once.

By going all in, you will be pushing your concrete blade too far which can cause costly damage to the saw and the concrete.

Power the saw at the lowest revolutions per minute. Maintain a constant but firm grip on the concrete saw. Move the saw slowly forward against the guide board. Let the concrete saw do the work.

Do not push or put too much pressure on the concrete, just guide it and keep a firm hold. Cut for 30 to 45 seconds at a time. Running the concrete saw at longer times will cause the blade to overheat or break.

Step 7

When you are done cutting, let the saw continue to run while you remove the blade away from the concrete.

This will give the blade a chance to spit out any dust and debris which will stop it from clogging up and also allows the blade to cool down. Alternate cutting and cooling down for 30 to 45 seconds each time.

Step 8

Once you have completed the straight line, remove the guide board. Go back to the start of the cut and continue cutting deeper until you achieve your desired or target depth. Continue doing intermittent cuts.

Step 9

Take breaks to take out the accumulated dust and debris. Even with wet sawing, dust and debris will still accumulate. Clean the workspace regularly using a broom or vacuum to do the job.

Step 10 

When you are done cutting, use a sledgehammer or mason chisel to clean the edges. Use the tools carefully so you will not cause the concrete to break or chip off on the edges.

Step 11

Clean up and put away all equipment and tools especially the concrete saw. 

Operating a concrete saw is a big feat. For quick, accurate, cost-effective, and timely, concrete cutting, let Melbourne’s most trusted do the job.

For all concrete cutting needs, be it commercial or residential, call us at MEGASAW. We have over 20 years of experience providing quality concrete services in Melbourne. Our experience is your guarantee!

Please call us today on 1300 920 419 or contact us through our website.