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The influence of different mixing processes onthe strength of ultra-high performance concretes


Results of a degree dissertation from Austria

 


The history of mixing and the history of the manufacture of concrete go back a long way. Even the Romans had the so-called opus caementitium, nowadays known as Roman concrete. This was used to manufacture compressively strong structural components from water-resistant mortar and stone chippings. Probably the most famous building constructed with Roman concrete is the Pantheon (fig. 1), whose dome spans 43 m [1]. Even today we are still striving for ever greater heights and spans in buildings. The development of continually better building materials goes hand-in-hand with the drive towards the ever larger. Hence, over the course of time the compressive strength of concrete has been continuously increased, which has ultimately led to a completely newly-developed building material, ultra-high performance concrete (UHPC for short).

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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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