Realistic minimum requirements

Production of high-performance concretes

High-performance concrete (HPC) with compressive strengths in excess of 65 N/mm2 is becoming increasingly important in state-of-the-art structural engineering projects to improve the characteristics of buildings as a result of the associated short pouring times for components with demanding load-bearing specifications. HPCs are high-strength concretes whose resistance to external chemical or mechanical actions is essentially determined by their particularly dense and solid structure. This trend reflects the fact that, in the meantime, concrete durability has become at least as important as...

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Issue 2013-07 Teka

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The mixer supplier Teka is presenting a new series: the Teka high-performance Turbine Mixers (THT). The manufacturer has developed this mixer belonging to the series that is suitable for „difficult...

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Issue 2013-09

A batch mixer for mixing concrete and a method for mixing concrete in a batch mixer

(11) EP 2 617 544 A1 (22) 20.01.2012 (43) 24.07.2013 (71) Haarup Maskinfabrik A/S, 8600 Silkeborg (DK) (57) Disclosed is a batch mixer (1) for mixing concrete. The mixer (1) comprises a mixing pan (2)...

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Issue 2013-02 Limitations of EN 13791

Evaluation of the compressive strengths of concrete on new and existing structures

When converting structures to other uses following damage, negative results of the conformity and acceptance tests, faulty execution of the construction, or when the adequacy  of the existing...

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Issue 2020-02 In-situ concrete compressive strength in existing structural frameworks

New methods according to E DIN EN 13791:2018

Existing structural frameworks need to be recalculated in accordance with currently applicable standards owing to building conversion and subsequent changes in load levels. Concrete compressive...

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Issue 2019-06 ELKON

Special design concrete batching plant for Poland

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