Clinker-efficient cements

Increasing the robustness of concrete

The durability of building materials plays a crucial role in the construction of sustainable buildings or structures. This is where concrete can exploit its strengths to the full. For this reason, a major part of the research being conducted at VDZ is dedicated to this key topic. A particular challenge lies in adhering to the political framework for mitigating climate change and ensuring resource efficiency whilst not losing sight of the longevity of concrete structures as an essential component of sustainability. Nowadays, modern concretes are complex systems comprising various raw materials...

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Issue 02/2020 Concretes with new, clinker-efficient cements

Durability properties

In the next version of DIN EN 197-1, additional standardized clinker-efficient cements will be added with CEM II/C-M and CEM VI. CEM II/C-M cements contain at least 50 M.-% clinker and CEM VI...

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Issue 06/2022

Rheological behavior and CO2 footprint of cements binder exhibiting ultra-low clinker content

In order to reduce the CO2 footprint of cement it is necessary to decrease the clinker content significantly, i.e. well below 50?%. To probe into such systems, the use of alternative raw materials...

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Issue 02/2015 Production, curing, environmental impact

State-of-the-art concretes containing cements with a reduced clinker ratio

Concrete is the most widespread construction material of our times – about 12 billion m3 of concrete are produced worldwide each year. The manufacture of cement, as one of the raw materials of...

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Issue 02/2016 An innovative design concept for formwork systems

Fresh concrete pressure for free-form structural ­concrete components –

Structural concrete components with inclined and/or curved surfaces are becoming increasingly popular in contemporary architecture (Fig. 1). Such concrete structures have long been the state of the...

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Issue 06/2017 Opterra

Optablue for low-cracking massive concrete elements

Many civil engineering structures consist of massive concrete elements. Special requirements are placed on the concrete used for these elements to ensure the duration of their effectiveness and...

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