Whether
you need to create a large open space or something smaller for utility lines
and plumbing, accurate Brisbane core drilling is an important factor that will determine
the success of your Brisbane construction projects. First, let us understand
what a core drill means. A core drill is used to create holes in extremely hard
surfaces. This is a hollow or cylindrical hole composed of motor, handle and
drill bits. Its drill tips are coated with either diamond or carbide. The main
striking difference between a core drill and other cement cutting tools is the
fact that a core drill is used to extract a sample from a material. The center
of the drill is hollow-shaped which allows carving out a sample from the material
being drilled. The sample extracted is called a core sample which has a shape
that conforms to the shape of the hollow walls of the drill.
Brisbane core drilling services are performed with
state-of-the art equipment which can penetrate various surface types. It has a
powerful drilling capability that promises holes to be created even in heavily
reinforced concrete. It cuts through cement, wood, rocks, and ice. The process
is that it pushes through the surface with a twisting motion to make the hole.
For best performance, different core drill bits are needed to be installed depending
on surface types. Brisbane core drilling uses core drills that have different
sizes, powers, and features depending on what it will be used for. Small core drills are available
and are recommended for home use. On the other hand, medium-sized and powerful
drills are used for construction of buildings and mine exploration. Lastly,
large-sized drills are usually used for concrete cutting on massive
construction projects.
Contractors
performing core drilling have to take into consideration different things
before proceeding with core drilling. First, they will have to choose the best
core drill unit. Typically, a hand-hand core drill is used for drilling holes
of up to 3 inches in diameter. It is ideally used with a drill stand or
rig-mounted unit especially when drilling a minimum core of 3.7 inches in
diameter. On the other hand, a flexible model that can be used for other
projects, like drilling holes in plumbing or electrical works and for drilling
dowel holes is more preferred.
Second
consideration is power. There are three power options available for core
drill motors; hydraulic, air and electric. The power availability in your
jobsite and work environment will determine the power option you will more
likely choose. Some units also will allow you to choose the best speed for your
hole size and concrete hardness.
Third
thing to be considered is stand attachment. You can use a vacuum stand when
drilling cores in slabs with a relatively flat surface. This attaches to the
floor with suction power and does not require anchor holes. You will need to
secure the stand to the wall with anchors when drilling cores in a wall. Also,
it is recommended to have a safety chain with drill stands as a precaution in
the event of a slip.
Fourth
thing to be considered is choosing a diamond bit. Contractors will need to
consider concrete psi and aggregate hardness in order to choose the correct
diamond core bit. Experts say that the diamond core bit has to correspond to
the material being drilled so use of softer diamond bond for harder materials
and a harder diamond bond for softer concrete is the recommended.
Last
thing to be considered is depth. Most of standard concrete core testing
samples are drilled with a 1-foot bit. If there is a need for a deeper core
drill, a barrel bit can be utilized
which is essentially bit extensions that allow deeper drilling than the cutting
bit itself.
