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Two Functions – One Product

The Duplex Block


Environmentally-friendly construction work can only be considered a success if architecture and physics are optimally harmonised with each other in the planning stage. Construction technology can only make any substantial contribution to lowering energy requirements through the targeted utilisation of elements with integrated functions, such as a combination of insulating and load-bearing materials. The current means of manufacturing dimensionally accurate double concrete masonry units (Fig.1) requires both a defined retention period in a production plant so that individual components can harden and time-consuming post-processing in order to achieve their specified final dimensions. With the aim of improving product quality with dimensionally accurate double concrete masonry units as well as optimising overall production costs, IAB Weimar gGmbH and Knauer Engineering GmbH Industrieanlagen & Co. KG have set the goal of developing a new type of block-making machine. This device should be able to process several zero-slump concrete mixes – Fresh on Fresh – in a mould into a multi-functional block by utilising an innovative vertical manufacturing method. In this process, emphasis has been laid on rapid cycle sequence and the green state strength specified after the product has been demoulded.

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IAB Weimar gGmbH

Über der Nonnenwiese 1, 99428 Weimar, Germany
T + 49 3643 8684-0, F + 49 3643 8684-113
kontakt@iab-weimar.de, www.iab-weimar.de

Knauer Engineering GmbH Industrieanlagen & Co. KG
Elbestraße 11 – 13, 82538 Geretsried, Germany
T + 49 8171 62950, F + 49 8171 64545
info@knauer.de, www.knauer.de

CPi worldwide journals are trade journals for the concrete and precast concrete industry that are published in 10 different language editions in more than 170 countries. These trade journals, with their practical editorial reporting on research, production and applications, are specifically addressing the decision makers of the concrete and precast concrete industry.

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