The Art of Precast Concrete: Colour, Texture, Expression by David Bennett

By David Bennett

As a construction fabric, precast concrete permits quite a lot of sculptural types and layout strategies. via treating the skin in a variety of methods, attention-grabbing textures and wonderful finishes should be produced. This ebook presents a scientific assessment of the range of purposes for such concrete parts all through Europe. writer David Bennett presents in-depth info on newly constructed, specially light-weight different types of concrete akin to GRC (Glass-Fibre strengthened Concrete), Ductal and CRC (Compact bolstered Composite). a variety of a few 24 tasks that are of specific value, are documented intimately and supply a wealth of inspiring layout principles. The appendix contains an summary of the construction practices within the person eu international locations and the supply of concrete components. among the structures documented are the Scottish Parliament construction in Edinburgh by way of Enric Miralles Benedetta Tagliabue, the Synagogue in Dresden via Wandel, Hoefer, Lorch + Hirsch, and the Mexican Embassy in Berlin by way of Gonz??lez de Le??n.

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Sample text

As you walk between the two blocks off Saterinkatu Street you notice a layout of terracotta paving slabs interspersed with rectangular panels filled with asphalt and some with wild grasses. The architect had the idea of imprinting the windows of the gable wall on the ground. The asphalt pieces are the closed windows and the ones with grass growing is where the window is thrown open! 1m2 in area. The surface was cast as normal grey concrete and painted on site by the main contractor. Casting beds were made of steel and each panel weighed on average 5 tonnes.

There are also two alignment pins fitted on the lower half of the panel for positioning. The sandwich panels which stack one on top of the other to form the façade are restrained by the gravity loads from the precast floor that span onto them. Reinforcing ties connect the floor to the sandwich panel. 4 EUR 48 Cantilevered front of main building and splayed columns Acid washing Water jetty Typical section 49 S AT E R I N R I N N E H O U S I N G D E V E L O P M E N T, H E L S I N K I Brunow and Maunula Architects Location The building can be found along Saterinkatu Street, a 800m walk from Leppavaara train station, which is a 15 minute journey from Helsinki city centre.

The panel is taken by overhead gantry crane to the surface preparation area. For an etched surface to the sandwich panel, the panel face is first sprayed with water to saturate it and then immersed in an acid bath for one minute. The acid bath contains 3% hydrochloric acid. Immediately after etching the concrete surface is pressure-jetted to remove any surplus cement. This also ensures that the aggregates will not smear as the concrete dries and that no lime scale will occur. If the panel is polished it undergoes the same acid-etch treatment and then proceeds to the polishing bay where it is laid flat and the surface is cut to a depth of 3mm using a semi-automatic wet grinding machine.

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