Heidelbergcement Ag

Hconnect 2 Gmbh

Heidelberg Materials Ag

Frank Bullerjahn

Mohsen Ben Haha

Dirk Achim Schmitt

Maciej Zajac

Jan Skocek

Anca Itul

Dirk Schmitt

Barbara Batog

Nicolas Spencer

Gerd Bolte

Linda Irbe

Dominik Nied

Sigum Kjaer Bremseth

Kjell Skjeggerud

Wolfgang Dienemann

Ingrid Mikanovic

Michael Tebbe

Sigurn Kjaer Bremseth

Composite cement with improved reactivity and improved fresh properties comprising a hydraulic cement or a caustic activator, a hyaloclastite as pozzolan containing 45-62 wt.-% SiO, 10-20 wt. % AlO, 6-15 wt.-% FeO, 7-15 wt.-% CaO, 7-15 wt.-% MgO, 1.5-4 wt. % (KO+NaO), and having 0-5 wt.-% loss on ignition at 950° C. and ≥50 wt.-% X-ray amorphous phase, and a carbonate filler with an at least bimodal particle size distribution adapted to provide a slope n in a Rosin-Rammler-Sperling-Bennett distribution curve of ≤1.15 in a particle size distribution of the composite cement; a method for manufacturing it, as well as use of a composition comprising the hyaloclastite as pozzolan and the carbonate filler as mineral addition for composite cements comprising a hydraulic cement or a caustic activator.

Composite cement with improved reactivity and method for manufacturing it

A method of manufacturing building elements has the steps: providing a binder comprising at least 8% by weight ternesite, at least 15% by weight dicalcium silicate and at least 5% by weight ye'elimite, each with respect to the total binder, as hydraulically reactive phases; mixing the binder with water to form a paste; casting the paste into a desired shape for the building element; reacting the paste hydraulically to form calcium-silicate-hydrates, calcium-aluminium-silicate-hydrates, portlandite, brucite, str&#xe4;tlingite, hydrotalcite-like phases and ettringite/AFm and capillary pores, and carbonation hardening to provide the building element and to building elements obtainable by the method.

Building elements made from binders hardening by combined hydration and carbonation

This invention relates to a method for producing a supplementary cementitious material comprising the steps:

Supplementary cementitious material made of aluminium silicate and dolomite

The present invention relates to a method for producing a binder comprising the following steps:

Method for producing magnesium silicate-belite-calcium aluminate cement

The present invention relates to binders based on latently hydraulic and/or pozzolanic materials that are activated by an addition of ternesite (CS$).

Ternesite used as an activator for latent-hydraulic and pozzolanic materials

The present invention relates to a method for accelerating the hardening of hydraulic or latent hydraulic binders, wherein ternesite and an aluminum component are added to the binder, and relates to an additive that increasing early strength for hydraulic or latent hydraulic binders that contain ternesite and a non-hydraulically reactive aluminum component, and relates to the use of an additive comprising ternesite and an aluminum component for the purpose of accelerating the hardening of hydraulic or latent hydraulic binders.

Method and additive for increasing early strength

The present invention relates to a ternesite calcium sulfoaluminate clinker as well as a ternesite clinker containing 20 to 100% by weight of CS$ and less than 15% by weight of CA$, as well as the use of ternesite as an additive to calcium sulfoaluminate (ferrite) (belite) (CSA(F)(B)) clinker, calcium sulfoaluminate (ferrite) (belite) cement, and calcium sulfoaluminate (ferrite) (belite) binder containing 10 to 90% by weight of CSA(F)(B) and 90 to 10% by weight of ternesite.

Calcium sulfoaluminate cement with ternesite

The present invention relates to the production of ternesite clinkers containing 20 to 95% by weight CS$ and less than 15% by weight CA$, and to the use of ternesite as an additive to hydraulic and/or latent hydraulic and/or pozzolanic materials.

Method for producing ternesite

The present invention relates to the production of a ternesite-belite-calcium sulfoaluminate (ferrite) clinker. The invention also relates to the use of alternative raw materials for clinker production, for example raw materials based on industrial byproducts, including those of low quality, such as lump slag and ash having a low glass content and/or a high free lime content and/or a high content of crystalline high-temperature phases, as well as naturally occurring rocks and rock glasses of comparative chemical composition.

Method for producing ternesite-belite calcium sulfoaluminate clinker

The present invention relates to the production of ternesite clinkers containing 20 to 100% by weight CS$ and less than 15% by weight CA$, and to the use of ternesite as an additive to Portland cement or Portland composite cement, and to a binder containing 20 to 95% by weight Portland cement (clinker) and 80 to 5% by weight ternesite (clinker).

Growing community of inventors

Leimen, Germany

Frank Bullerjahn