ALWAYS A CUT ABOVE
“Penhall has been an important part of our general contracting business for many years. Together, we have tackled a variety of jobs including emergency saw cutting and excavation to fix a water main break, routine interior wall and finish removal, and getting a large part of an active airport terminal down to bare structure. We have also worked together on volunteer projects where Penhall brought their expertise, helpful ideas, equipment, and reliability- as they always do!” - T. Kittle, Kittle Design and Construction, AZ
Concrete cutting. It’s what we’re known for. Back in 1957, Penhall started off with a single flat saw, and today we’re the largest concrete solutions provider in the country. We pride ourselves in our experience, expertise, and top-of-the-line equipment, so when you work with Penhall, you know you’re getting the best concrete cutting services in the industry.
Penhall operators are required to go through rigorous training before they can assist you with any of your concrete cutting needs. After both in-class and field instruction, operator candidates move on to our Mentor Program, where they study under the tutelage of some of the most skilled and experienced people in concrete construction. Before being sent out to you, our operators are tested and interviewed to make sure that they have the knowledge to provide you with the best services around.
When your Penhall operator arrives on the site, you’ll find that you’ve just gained a trusted partner who will assuredly add value to your project. Whether it’s a quick couple of cuts or you’re cutting up a whole parking lot, your Penhall operator is always prepared. Our trucks come fully equipped with everything needed to ensure the job gets done right. Operators always have a range of blades in a multitude of sizes and can provide their own water, power, and slurry removal if need be. Penhall now offers Ground Penetrating Radar scanning, which can help keep you, your team, and your job site safe. By scanning before starting the job, you can find out what exactly is embedded in the concrete you’re about to cut.
TYPES OF CONCRETE CUTTING
Penhall Company started off with its first flat saw in 1957. As the name states, flat saws are used to cut flat, generally horizontal surfaces. Whether you need a high RPM saw or an electric-powered flat saw for your indoor cutting and trenching, we have a variety of machines to ensure that your job is completed safely and efficiently. We have blades on hand to cut to a depth of 1 to 24 inches, but if you need anything deeper than that, don’t hesitate to ask your local Penhall office.
When you need to cut a vertical surface, a wall saw is the saw for you. Generally, wall saws are used to cut new openings such as doorways or windows, HVAC openings, or to modify previously installed walls. Here at Penhall, we use track mounted wall saws that can be remotely operated to get the safest and most accurate cuts. We also use hand saws to finish up the cuts to ensure clean corners when you need them. Our wall saws can cut up to 33 inches without over-cuts. If you need something more, just contact us and we will help you find the solution you’re looking for.
Penhall offers wire sawing; a safe, efficient, and cost-effective way to cut large or awkward structures that may be too tough to cut using traditional methods. As one of the easiest ways to allow for mass concrete removal, wire sawing can cut through just about anything, including heavy rebar, embedded steel beams, and other reinforcements. Perfect for lock and dam retrofits, pier modifications, nuclear decommissioning, industrial plant renovations and more, our wire saws can be applied to structures of any length or depth. Our equipment is fully portable and our wire saws can also be used under water while leaving minimal impact on the surrounding environment.
“Penhall has always responded in a timely and professional manner to any of our requests and followed through with strong performance on site. This professionalism can be seen all the way from management to their on-site personnel. Penhall has been involved in various capacities on our current TTC project, providing tailored solutions for everything from road cutting to saw cutting of precast tunnel liners. Work has always been performed as requested and completed to satisfaction without any issues. Their wealth of experience on such projects has been invaluable to our progress.” - P. Grier, OHL FCC, Canada
Penhall is a leading provider of asphalt cutting services for industrial, commercial or residential projects. We have been in the business for over 50 years, and we have the equipment required to handle even the most challenging projects. We employ state-of-the-art equipment and a highly trained staff to vastly reduce the time and cost required for this type of project. Enjoy the benefits of our dedicated professional staff, who are known for taking pride in their work, and delivering the best results in the industry. Types of work we specialize in include:
- asphalt road cutting
- asphalt over concrete
- parking lot cutting (fresh asphalt or cracked & broken)
CONCRETE FACTS ON CONCRETE CUTTING
Concrete is made up of cement and crushed rocks, stones and sand. The cement is made up of limestone and other minerals, which act as a binding agent when combined with water. The crushed rocks, stones and sand in the concrete are called aggregates, which are held in place by the cement and help give the concrete strength and act as an extender in order to use less cement. Since concrete and asphalt are fairly hard substances, we need something even harder on the Mohs Scale of Mineral Hardness to cut it, which is where diamonds come in.
Diamond blades have been around since the mid-1930s and were originally for lapidary use. By the time Penhall came on to the scene, the blades had evolved to be used for concrete cutting as well. While the first diamond blades, developed by pharmacist Richard Felker, used natural diamonds, modern concrete saw blades use synthetic diamonds which are specially engineered to most effectively cut specific aggregates within the concrete. Aggregates vary from region to region and state to state based on what kind of minerals and rocks are available in the area to use in the concrete mix. As there could be many different aggregate mixes with just as many differences in hardness throughout a single state, Penhall has a wide range of diamond blades to make sure that wherever you are and whatever aggregate is in your area, we’re cutting safely and effectively while optimizing production rates.
In general, diamond blades are made up of three major components: diamonds, metal binding powder, and a steel saw core. Tiny diamond crystals are combined with a metal powder mixture which often consists of metallic elements such as tin, iron, copper, cobalt, nickel, silver and others. This mixture is then pressed in to the “diamond segment” which is welded on to the steel core. Once all of the diamond segments have been welded on, other than some last minute adjustments, the diamond blade is ready to go.
Even though it’s called concrete cutting, the process itself is actually grinding. The diamonds set into concrete saw blades create an abrasive surface which is what grinds away at the concrete at high speeds. You don’t sharpen a diamond blade as you would another type of cutting utensil. As the blade itself gets worn down, new diamonds get exposed, which allows for continual use. The type of aggregate your cutting can affect your production rates, but don’t worry, Penhall has the right equipment for any type of job.