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Construction Site Works: Ground Levelling and Grading

10 July 2020

In a construction site, a levelled and graded ground is important when the builder is preparing to install a concrete slab. Both ground levelling and grading are a vital process in a construction site works and quite frankly, most people remain unaware of its uses and applications. To maximise the advantages of certain construction work, you must know the basics of ground levelling and grading. Lucky for you, below is an overview of ground levelling and grading for construction site works.

Ground Levelling and Grading Basis

Have you ever thought about how a construction site works come up with a perfectly level base for the foundations of your house? For starters, not every surface is area is levelled as it is and if you must know, it is quite important. Levelling the ground for construction site works purposes is achieved using what’s known as a builder’s auto-leveller. Auto-levellers are more commonly referred to as a ‘dumpy level’. This particular instrument measures the height of two points on a horizontal plane, such function allows the builder to measure whether a bit of ground is level or not.

On the other hand, ground grading is equally important. Ground grading is an essential step that is carried out before construction. As such, ground grading helps you to prevent water from flowing towards the foundations of your new house. Experts in the construction site works will generally try to create a grade sloping away from the foundations of your house. However, this feat may be considered as a struggle mainly because it could be difficult if though the site is a particularly flat piece of land.

Ground Levelling Applications

Ground levelling, of course, will also be carried out on any other areas that need to be level for instance – paths, driveways etc. However, such activity is only necessary at a certain point when it’s time to proceed to the main construction project. Ground levelling main purpose is to provide precise and accurate measurements with consideration to the changes brought by utilisation of machinery. There is also a margin of error for the actual construction process as it is bound to slightly change the ground level. Errors in this particular process can necessitate a construction redo.

Ground Grading Applications

The most obvious application for ground grading is the need to manipulate the ground grade so that any of your waterworks will flow away from the property. This is during a scenario wherein the site is built on a slope that sees water flowing towards your house. Ground grading can be done to ensure drainage for garden beds and other landscaping too. Both ground grading and ground levelling work will utilise heavy earthmoving machinery, including things like skid-steer loaders (or Bobcats, as they’re also known), and a builder’s auto-leveller.

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