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Thursday, 18 July 2019
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Raw materials & technologies, Technologies

Utilising waste glass in translucent and photocatalytic concrete

Friday, 18 November 2016

An article by researchers from Eindhoven University of Technology addresses the development of a translucent and air purifying concrete containing waste glass.

Waste glass is utilised to produce translucent and air purifying concrete. Source: A.Dreher/pixelio.de

Waste glass is utilised to produce translucent and air purifying concrete. Source: A.Dreher/pixelio.de

The concrete composition was optimised applying the modified Andreasen & Andersen model to obtain a densely packed system of granular ingredients.

Good durability

Both untreated (unwashed) and washed waste glass fractions were utilised in concrete. The fresh and hardened concrete properties were investigated. In order to ensure a durable material, the expansion due to the alkali-silica reaction was also analysed. Subsequently, concrete tiles of different thicknesses were produced and their translucency was quantified. Additionally, two different types of TiO2 were utilised in concrete to analyse the glass aggregates effect on the photocatalytic degradation of air pollutants (NO and NO2). The obtained results indicate that the developed concrete has satisfactory mechanical properties, coupled with good durability, translucency and enhanced air purification properties.

The study is published in: Construction and Building Materials, Volume 128, 15 December 2016, Pages 436–448

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