Asphalt has been around since time immemorial. It was discovered in places where crude oil appeared on the earth's surface naturally and was mixed with stones and sand. After evaporation of the volatile particles in the oil, a kind of Asphalt mixture remained which had already been used for thousands of years to seal hydraulic engineering structures and for paving roads.
Asphalt production at Vondelingenplaat
Vondelingenplaat is home to one of the largest and most modern Asphalt plants in the Netherlands, with a capacity of 300 tonnes of Asphalt per hour and annual production of approx. 500,000 tonnes of Asphalt. BRC has a 25% interest in this Asphalt plant.
Nowadays, Asphalt is produced on an industrial scale. Modern Asphalt is a mixture of sand, gravel (or stone chippings) and a very fine filler, stuck together with bitumen - a product of the oil industry, not to be confused with tar. By maintaining a certain ratio between the various components and by varying the grain shape and grade of the mineral aggregates, all possible mixture properties can be given to the Asphalt product in the Asphalt plant.
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Depending on the application, a waterproof Asphalt mixture can be chosen, for example, or a porous and noise-reducing very open Asphalt concrete, for flexible mixtures or mixtures resistant to high, concentrated loads.