Boom Laser Screeding
A Laser Screed Concrete Floor is a concrete floor that has been levelled by a machine that uses lasers to precisely scree the floor at the exact same height across the whole floor.
At our Vdf Constructions the laser acts as a very accurate and very long piece of string.
You can see in the diagram below that the system comprises two components, a laser transmitter and a levelling machine.
The laser transmitter is very similar to the laser system you see regularly being used on construction projects and public works. It transmits a laser beam across the area of the floor with exact precision.
The machine transmits the laser beam at a height of around 2m above the required surface of the floor.
The levelling system consists of a laser sensor, a vibration unit and a scraper plate.
The scraper plate is set at a fixed distance from the height of the laser sensor. The scraper is drawn across the freshly poured concrete levelling the surface with complete accuracy. The vibration unit follows behind making the concrete surface completely smooth.
There are two basic types of laser levelling machine; a two wheeled walk behind system like Hiking EV850-2S Mini laser screed, or a four wheeled, ride-on machine like the Somero S-485 laser screed.
Before the concrete is completely set it is normally to finish the surface with a dry shake finish.