Exposed aggregate concrete for the renovation （改造暴露骨料混凝土）.pdfVIP

EXPOSED AGGREGATE CONCRETE FOR THE RENOVATION OF PUBLIC SPACES For a few years now, during the construction, maintenance or Exposed aggregate concrete is characterised by a specific treatment of renovation of public spaces in urban areas increasing attention has the surface. When the concrete has been processed, a setting retarder been paid to the spatial and visual quality of the projects achieved. is applied onto the surface of the fresh concrete in order to prevent Designers, both commissioned by the government and in the private the cement from hydrating. After hardening of the concrete, the non- sector, set themselves the goal of better integrating the road surfaces hydrated mortar at the surface is removed for example with a high- in the (usually) built-up environment. After all, streets are areas that pressure water jet, so as to expose the coarse aggregate at the surface are used by a diversity of users - some motorised, some not. This joint and show their appearance and colour to their best. By adding a use presupposed a coherent vision and constant concern for the colouring agent into the concrete, the natural tints of these granulates everyday surroundings. The type and appearance of the road surface can further be supported. chosen are logically very important in this. 80 The technique of aggregate exposure was developed in Belgium and is Amongst the possible techniques and paving materials, concrete usually called “chemical aggregate exposure”. The process is blocks or natural paving stones enjoy a special preference in Belgium. systematica