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Tech & Science : Baurohstoffe gravel and sand will soon be even more scarce and expensive

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The central building high fabrics gravel and sand could become even more and more expensive in Germany, according to experts from the federal government. The Federal Institute for Geosciences and Raw materials (BGR) in Hanover, for example, cites resistance to the preservation or expansion of domestic funding facilities, too long planning procedures as well as the increased energy costs for dismantling and processing.

Eine Bandanlage für den Transport von Sand und Kies. © Waltraud Grubitzsch/DPA central picture/dpa A tape plant for the transport of sand and gravel.

There are now “significant problems” in the extraction of gravel and sand, it was said on Thursday to present a new investigation by the specialist authority, which analyzes the raw material situation on behalf of the Federal Ministry of Economics.

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other building materials expensive

gravel is also used primarily in the production of concrete for high, deep and road construction. Fine -grained sand is also an important resource there. Many building materials had already become more expensive in the past two years. The often lack of care - together with the lack of specialists and torn supply chains - met private houses as well as the construction industry as a whole.

An evaluation by the BGR scientist Harald Elsner on the situation of around 270 of the more than 2,600 German sand and gravel conveyors now showed: «Competitive uses through water, nature and landscape protection areas, infrastructure facilities such as roads and railways, the residential development and commercial areas» exacerbate existing bottlenecks in both building high fabrics. "In addition, private ownership interests often stand in the way of dismantling."

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partly could no longer be promoted 50 to 70 percent of the occurrence. "In some regions of Germany, especially in Bavaria and Schleswig-Holstein, gravel companies can no longer buy locally at all." In the large rooms of Berlin, Cologne and Dresden, the supply should be difficult in the medium term.

BGR calculates with a price increase of 10 to 15 percent

The betting offer drives the supply costs for concrete gravel and concrete sand. The BGR estimates that the already increased prices "continue to increase by 10 to 15 percent a year". As a result, more must be imported, the necessary multiple transport loads the environment.

where diesel machines are still used in the preparation, there were significant increases in energy costs. "It looks better in larger gravel works connected to the power grid," said the BGR. "These often want to switch their energy supply to photovoltaics and operate their vehicle fleet promptly with the help of self -generated green hydrogen." However, floating solar systems on excavator lakes would often not be approved.

The BGR had already warned of bottlenecks in an earlier study. Major construction orders would no longer be accepted and gravel quantities were assigned to availability, Elsner wrote in spring 2020. The construction industry and the building materials industry also spoke of a deficiency. Finally, more sand was asked in many places than was covered by the offer. Now this could possibly become even more expensive because of increasing interest.

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