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Mineral resources of Poland> Rock raw materials and others> Mineral raw materials for engineering works
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Mineral raw materials for engineering works

Mineral raw materials for engineering works are usually clayey-sandy and clayey rocks, but also others - sandstones and limestones. These raw materials are utilized in road industry for road embankements building or in waste disposal packing and reclamation.

Usually (about 70 %) resources of mineral raw materials for engineering works are documented as accompanying raw material - these are the parts of deposits which do not meet the balancing criterias of the main raw material, i.e. parts of sand and gravel deposits with too high ash content or parts of dimension and crushed stones deposits with too low strenght.

Anticipated economic resources decreased in 2012 by 0.34 million m3 (4.1 %) in comparison with the previous year and amounted to 8.00 million m3.

There were 2 new deposits documented in 2012: Sieniawa and Ubieszyn PKL located in Podkarpackie Voivodeship. In both of them mineral raw materials for engineering works are documented as accompanying raw material. There are also two deposits included in “The balance…” which have not been presented so far – the Gąbin (Kujawsko-pomorskie Voivodeship) and Sękowa (Małopolskie Voivodeship) deposits.

There were three deposits crossed out of “The balance…” – Sękowa, Sieniawa I and Karwowo deposits (Małopolskie, Podkarpackie and Zachodniopomorskie Voivodeships respectively).

The table given below shows the current state of identification and management of mineral raw materials for engineering works resources in Poland.

Production of mineral raw materials for engineering works amounted to 541 thousand m3 in 2012 and increased by 15.1 % in comparison with the revised production from 2011.

The Podkarpcakie Voivodeship accounts for 86 % of total domestic production .The output increased within this area by 147 thousand m3 in 2012 due to the continuing building of A4 highway.

Prepared by: Wojciech Szczygielski