Abstract
Architectural concrete is usually defined as concrete for with the requirements regarding aesthetics of its surface are formulated. The currently applied requirements regarding aesthetics compatibility are mostly based on subjective methods of concrete surface assessment. While it is relatively easy to apply quantitative criteria for components of surface analysis such as porosity, the quantitative assessment of colour compatibility could be problematic. In this paper, an optical method for the assessment of concrete surface colour is presented. The main goal of the investigation was to assess the effect of modifications of the aggregate used for preparation of architectural concrete mix on the surface colour. Optical test methods using a self-made DARK-BOX device were used. The obtained results confirmed the usefulness of the method used to assess the colour compatibility of architectural concrete surfaces.
Highlights
Architectural concrete can be defined in various ways
One of the features that should distinguish architectural concrete is the aesthetic compatibility of the concrete surface
Aesthetic compatibility can be defined as the set of quantified surface features of an element that are responsible for the positive reception of the surface with regard to aesthetics [2]
Summary
Architectural concrete can be defined in various ways. One definition is as follows: ‘visible concrete surface that is not covered by an opaque coating’. As architectural concrete is a type of concrete that is the finishing element, we should use different criteria for its assessment than for other concrete surfaces. One of the features that should distinguish architectural concrete is the aesthetic compatibility of the concrete surface. Aesthetic compatibility can be defined as the set of quantified surface features of an element that are responsible for the positive reception of the surface with regard to aesthetics [2]. The following features of smooth architectural concrete surface that affect its aesthetic reception, can be included: porosity, colour properties, gloss
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