Architectural Concrete - Dreßler-Bau

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6 Architectural Concrete: Architectural Design + Precast Concrete Technology Sand blasted beams after installation Sand and marble sourced from the Erzgebirge were used as aggregates in the production of the precast concrete elements. The concrete was specially sand blasted or ground to give it an outstanding surface quality. Another challenge was the fitting accuracy of the precast concrete elements for staircases and wall elements. Minimal tolerances in the existing structure also had to be taken into account to ensure optimised integration in the existing structure of the building and to prevent unsightly joints. Large-format structural elements with an uniform quality to the exposed concrete on all four sides also placed exacting demands on the precast concrete specialists. Ideas in harmony: architectural features for interiors The use of state-of-the-art building materials to contrast with the historic structure of a building is always a daring move in the preservation of historical monuments and buildings. The critical eye of international museum experts, architects, art historians and politicians made architect David Chipperfield's decision to use precast concrete elements in the restoration of the Berlin Museum Island – a world heritage site since 1999 – all the more difficult. The aim was to retain the beauty and power of this more than 150 year old building as well as to gently accentuate the forms and lines and thus avoid “over-restoration”. Needless to say, the demands placed on the architectural concrete used for the Neues Museum (New Museum) were highly exacting. Staircase after reconstruction Beams and columns sand blasted, balustrades and plinths ground
Steps, stringers and hand rails ground and polished, wall panels sand blasted Movable roller ceiling (sand blasted) Combining functionality with creativity: holistic building concepts Behind these beautiful, timeless surfaces lies a great deal of painstaking craftsmanship and innovative concrete technology. A single structural element combines the most stringent design and aesthetic demands, whether flawless, hard-edged corners and angles or precisely integrated, polished, smooth-tothe-touch handrails on staircases. Roller-mounted ceiling elements allow one to transform the character of a space or optimise lighting conditions. Slender columns and arched elements ensure that one's view is never restricted. Precast elements of architectural concrete are used for important design tasks, thereby enabling holistic building concepts to be realised. In the Neues Museum (New Museum) in Berlin, experienced craftsmen from Dreßler not only ensured that the precast concrete elements were properly installed, but were also responsible for the complex restoration of the historic masonry.
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