Gravel and
crushed stone

Gravel and crushed stone are essential materials in building construction, civil engineering and road construction. Since 1953, we have been reliably producing these materials with consistent quality for construction projects of all sizes. We extract and process shell limestone to create a wide range of products.

All products are regularly tested by our construction materials laboratory as part of our certified in-house production control (WPK) program.

Shotcrete

Shotcrete is used in tunnel construction and ground engineering. The basis for our dry shotcrete or wet shotcrete is always a dry mix. The use of a dry initial mix has the advantage of allowing precise control over the quantity of material. This means no leftover material that needs to be disposed of. The high flexibility and independence from set times and days of the week enable an optimal construction process.

We produce dry mortar for the manufacture of backfill mortar, also known as ring gap or segment mortar. Used as a filling or injection mortar, it is employed in tunnel and adit construction. It is used to backfill voids, such as filling the ring gap between the rock and the segment lining during mechanical tunnel boring.

Backfill mortar must meet high standards, such as precise and secure bedding of the segments as well as good workability.

Our backfill mortar is tailored to the tunneling process, balancing stiffness and early bedding and (vs.?) workability time.

Anchor Mortar

In tunneling and ground engineering, anchors are used for stabilization and are grouted into the rock using anchor mortar. Anchor mortar must sometimes transmit extremely high tensile and shear forces, which is why the requirements for this building material are particularly high.

Misolith^®

Misolith^® is our specialized binding agent for soil improvement. Depending on soil conditions, we offer different variants of the lime-cement mixture: Misolith^® M30, M50, M70. We are, of course, also happy to supply custom mixtures upon reques

Dry mix for DIY stores and specialist building suppliers

For DIY markets, we package our high-quality dry building materials in our own bagging facilities, in sizes ranging from 25 to 40 kg. Would you like your own custom design? We are happy to custom-print the bags.

RG JUMIX^®

Your contact for:

gravel and crushed stone, landfill

Maximilian Ulmer

Tel. +49 7152 93911-0

tdry mix, Misolith^®, DIY stores and specialist building suppliers

Florian Rombold

Tel. +49 7152 93911-0

dry mix

Sebastian Glener

Tel. +49 7152 93911-40