Do you know how wires or pipes are installed underground? It was a very difficult process. But core drilling is a modern method that makes this work really easy.
As a contractor or construction worker, you must know this process. In this guide, you can learn about types, tools and benefits of core drilling.
Core Drilling Definition
Many people ask: What is core drilling in construction? Well, core drilling means to cut a round hole through hard surfaces like concrete, stone or asphalt. Especially, when you need to dig under the layers of different materials. For this purpose, a hollow drill bit is used to create a perfect size of openings.
Therefore, you can use this method when you need space for pipes, cables and ventilation. In addition, these holes can be as small as 10 mm and go up to 1.8 metres.
How Does Core Drilling Work / Core Drilling Process
First of all, you have to mark the exact spot where you need to create a hole. Then fix the drilling stand for safe operation. After that, you have to attach a bit (according to your specific need) with the drill machine.
When all the attachments are inspected you have to press the start button. The rotating shaft will move. This speedy motion creates holes in roads, walls and floors.
Types of Core Drilling
Wet Core Drilling
Wet core drilling uses water when you drill. Basically, the water cools the drill bit and keeps it sharp for a long time. This type of drilling makes cleaner holes and produces less dust. You can use it on concrete, brick or reinforced concrete. Plus, it protects your health and reduces the need for extra cleanup.
Dry Core Drilling
Dry core drilling does not use water. You must use it when water could be dangerous for you, like near electrical work. But on the other hand, this method produces more dust and puts extra pressure on the drill bit. This is why the bit can get damaged fastly. Therefore, you need to handle the drill carefully to protect yourself from electric shock and keep the work safe.
How Many Types of Drill Machine?
You can read here about the types of drill machines. They are designed to handle different tasks. Some drills work on roads, some others on walls and some of them are for hard rocks. For example, you can choose an automatic drilling machine to make holes in concrete or asphalt fastly.
Names of some drilling machine types are given below:
- CNC Drilling machine
- Portable drilling machine
- Hammer drill machine
- Deep hole machine
- Micro drill press
- Floor drill machine
- and Radial drilling machine etc.
Core Drilling Tools & Equipment
You need the right tools to do core drilling safely in an accurate manner. In simple words, these tools make sure the hole is clean and your work is easier.
- Drill Rig: It is the main machine that comes in different variations. You can often use surface, underground or sonic rigs.
- Power Source: You have many options for this like electric, pneumatic or fuel based power sources.
- Drill Bits: There are many types of drill bits. For example, diamond, ring, tungsten carbide and PDC bit. Each has its own features.
- Cement Silo: Cement silo is a storage container that is used to fill cement in holes, when you finish the drilling.
What are Core Drills Used For?
- Installation of Pipes: You could use a core drilling machine to make holes for placement of pipes. The drill makes a hole in concrete, asphalt or walls. So, you can put pipes, cables or wires through these holes without any breakage.
- Drainage Cleaning: In case when the drain is blocked, you have the option to use a core drill to clean the hole. Hence, when the hole is ready, you can remove dirt and old pipes. This gives you easy access to the drain.
- HVAC Installations: Core drilling is also useful in HVAC. Simply, the drill makes clean, round openings without any damage to the surrounding area. So, when the holes are ready, you may fit the ducts and pipes for ventilation.
- Restoration and Modifications: This versatile process also helps when you want to renovate a building or road. Actually, core drills make it easy for you to create holes for new pipes, wires or vents.
Benefits of Core Drilling
You can get many benefits from this specific technique.
- Core drilling makes round holes with smooth and clean edges for a neat finish.
- It reduces damage to nearby surfaces and keeps the structure strong.
- You can use it for plumbing, HVAC, electrical pipes, anchor bolts and testing.
- It allows you to drill both vertically and horizontally.
- Core drilling is faster than older methods and normal drilling.
- This method (wet core drilling) produces less dust and vibration. So, it is a safe and environmentally friendly option for you.
- You will find it a cost-effective solution because it cuts off the need for extra workers.
Core Drilling Safety or Safety Procedures
Core drilling is a good option but it comes with some risks. So, you should follow safety steps to protect yourself, others and your equipment.
- This technique produces fine silica dust, so always wear a mask or other PPE to protect your lungs.
- In this process, core bits can overheat. You have to use water or proper cooling fluid to maintain your equipment.
- When you are near an electric area, you should avoid live wires and wet areas to reduce the risk of electrical shock.
- Always, make sure the rig is placed strongly on the ground to stay safe.
- When you drill a hole, loose debris and cores can fly toward you. Therefore, keep the area clear and use any kind of safety helmet.
- At such a place, you can install safety signs to inform others about the danger.
Frequent Questions of Users
Can You Use a Normal Drill For Core Drilling?
No, a normal drill cannot do core drilling. You need a core drill with a hollow bit to make clean & round holes in concrete, walls and roads.
What is Inverted Drilling?
Sometimes, you have to make holes from below a structure like a ceiling or bridge. In such a situation, inverted drilling lets you do this when you cannot drill from above. Therefore, you can easily create space for pipes and wiring in hard to reach places.
Can You Core Drill From Inside a Hole?
Yes, you can core drill from inside a hole if there is enough space for the drill and the bit. Usually, you can do it to enlarge existing openings.
Conclusion
I tried to explain all the necessary aspects of core drilling which you should know. So, if you want to make neat and clean holes at your workplace, you must select this process. Always remember, safety precautions are very necessary for you and others.
Do you want products/machinery for core drilling or related to your construction tasks? You can send us a message to get a highly affordable quote.
