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Methods for accurately predicting the pumpability of concretes with a non-ideal aggregate …

Potential applications for test equipment suitable for use on construction sites


… grading curve The identification and description of meaningful fresh concrete parameters has a history that is almost as old as concrete technology itself. Different concrete, installation and compaction concepts have produced various different mix compositions and specific test methods. Here, the desire for a simple method, suitable for construction sites, for predicting and testing certain properties of fresh concrete usually exceeds the desire to be able to describe physical properties such as flow behaviour scientifically with great accuracy. Simple site tests such as flow spread, especially in combination with the visual perception of experienced concrete workers, provide the basis assessing the properties of fresh concrete on site. Under constant and favourable conditions with optimized grain size distribution and the most efficient grain shape where the individual batches only differ according to the amount of water and perhaps the concrete admixtures, such procedures still frequently form an appropriate evaluation basis for comparing similar batches.

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VersuchsStollen Hagerbach AG
Polistrasse 1
8893 Flums Hochwiese, Switzerland
T + 41 817341414
F + 41 817341405

Schleibinger Geräte Teubert u. Greim GmbH
Gewerbestr. 4
84428 Buchbach, Germany
T +49 8086 9473110
F +49 8086 94014

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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