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Muller A.,Iab Institute For Angewandte Bauforschung
ZI, Ziegelindustrie International/Brick and Tile Industry International | Year: 2015

Present practice in the recycling of masonry rubble cannot claim to be contributing to resource efficiency. Building on a 2003 review article on the recycling of masonry rubble [5], this contribution reports on new findings and current developments of relevance. The characteristics of "masonry rubble" as a material flow category are described, and current research findings and extant technologies explained.


Janorschke B.,Iab Institute For Angewandte Bauforschung | Solas H.,Iab Institute For Angewandte Bauforschung | Palzer U.,Iab Institute For Angewandte Bauforschung
Betonwerk und Fertigteil-Technik/Concrete Plant and Precast Technology | Year: 2013

IAB Weimar gGmbH, OBB Beton- und Bau GmbH and WBB StraBen, and Tiefbau Marksuhl GmbH developed a multifunctional, retrofittable curb system for the construction of roads, outdoor spaces and tunnels. The Multibord curbstone is a modular system that combines utility ducts, road safety equipment, traffic information systems and telematics, and lighting. The Multibord system provides the necessary flexibility as a result of its structural design and of the concentration of utilities in the curb zone. The system can alert road users of particular features in bends, on driveways, at crossroads, or on traffic islands. It also appears feasible to mark various areas of use by light strips in one or several colors. Self-sufficient energy supply can be implemented by integrating photovoltaic panels. The Multibord system is divided into three levels. Each of these levels fulfils specific functions. The Multibord system is a major innovation that contributes to enhancing road safety due to its integrated infrastructural, safety and lighting components.


Palzer U.,Iab Institute For Angewandte Bauforschung | Krenzer K.,Iab Institute For Angewandte Bauforschung
Betonwerk und Fertigteil-Technik/Concrete Plant and Precast Technology | Year: 2013

The approach presented in this paper enabled a thorough investigation of the flow patterns in a colloidal mixer. The combination of parameterized geometry descriptions with statistical analyses resulted in a suitable machine design that promotes particle homogeneity whilst also reducing energy consumption. This machine design was shown to be better-suited to practical needs.

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