EurGeol Dr. rer. nat. Lutz Krakow

Resource efficiency in the clay brick and tile industry | Part XII: Greywacke carbonate granulate from hard rock processing

Photos/Fotos: Dr. Krakow

»1 Concordant deposit of greywacke and carbonate in the Berge Quarry, North Rhine-Westphalia

Photos/Fotos: Dr. Krakow

»2 Extraction site in the massive sparganophyllum limestone

»3 Geological anticline structure in the Rensselandia greywacke

»4 Loading of lorries with greywacke carbonate

»5 Granulation in tubular screw conveyor prior to loading

»5 Layout showing production of granulate 6367

»6 Fired samples with granulate 6367

1 Geological background and site

At Berge Quarry near Meschede/North Rhine-Westphalia, in one concession both greywacke and limestone are extracted and processed to aggregates and construction material mixes for the construction of transportation routes. The material consists in 70% greywacke and 30% limestone extracted from separate working sites. The underlying greywacke is concordantly covered by blackish-grey reef limestone (»1). During crushing and sizing, over 10 000 t rock flour are produced per year, which are homogeneously wetted and granulated. As part of the...

krakow@rohstoffconsult.de

www.dr-krakow-labor.de

Issue 2/2014

Resource efficiency in the clay brick and tile industry Part VIII: Greywacke filler from hard stone processing

1 Geological background and site At Hüttengrund Quarry, tectonically deformed greywacke layers are extracted and processed to high-grade aggregate and building material mixes for road construction....

Issue 4/2016 EurGeol Dr. rer. nat. Lutz Krakow & Dipl.-Geol. Franziska Schunke

Current clay potential in Germany | Part 2: Raw materials from the Ordovician and Devonian systems

1 Global geological history and tectonics The geologically oldest clay raw materials used in the German clay brick and tile industry date from the Ordovician. In geological history, the Ordovician is...

Issue 10/2013

Resource efficiency in the clay brick and tile industry Part VII: Ferruginous clay from diabase extraction

1 Geological background and site Since 1952 diabase has been extracted at Huneberg Quarry and processed to high-quality aggregate and building materials mixes for traffic route engineering. The quarry...

Issue 01/2022

Modern raw materials for the clay brick and tile industry –Part 3: Mica schist from the andalusite-mica rock quarry in Schelmberg

1. Geological background and location Andalusite-mica rocks are contact-metamorphic texture-free rocks. Mineralogically, they consist mainly of mica, quartz and feldspar. The metamorphic mineral...

Issue 11/2012

Resource efficiency in the clay brick and roofing tile industry Part IV: Recycled marl from dolomite washing

1 Geological frame and location Since 1902 raw dolomite rock has been extracted from Grevenbrueck quarry and processed to high-quality raw materials for the steel and foundry industry. The quarry...