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Environmental Impact Assessment of Concrete Recycling

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The SeRaMCo project aims to promote the recycling of demolition by-products in new concrete. While the reuse of these aggregates is obviously beneficial to the environment, because it prevents the use of new resources, it is more difficult to compare the CO2 emissions of the recycling process to the quarry extraction process. Hence our role in the SeRaMCo project: to evaluate the environmental impact of concrete recycling with Life Cycle Assessment (LCA). Read More

Special Techniques For Improving The Quality of Recycled Materials

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One of the goals of the SeRaMCo project is to improve the sustainability of the concrete industry. One possible avenue to reach this goal is the use of recycled aggregates obtained from Construction and Demolition Waste (CDW). They are obtained by crushing suitable CDW such as concrete, bricks, tiles, ceramics, natural stones. However, the crushed material still contains unwanted elements such as rebars coming from reinforced concrete, plastics, woods, and paper. Read More

Looking for innovative and environmentally responsible applications

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SeRaMCo will showcase the use of secondary aggregate in concrete and the fact that it does not have to be as complicated as sometimes assumed. During the MAKING workshops at TU Delft, the great architectural potential of CDW (Construction and Demolition Waste) in precast concrete is an ongoing topic of investigation. Students look for the added value of CDW in concrete ranging from béton brut, exposed concrete and rammed recycled aggregate, by making objects with added properties. Read More

Eco-friendly, economical, sustainable – First load-bearing prefabricated recycling concrete wall produced (1)

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The German precast producer Beton-Betz has been working for the last 1.5 years in the EU INTERREG project SeRaMCo. The company’s role is mainly to contribute to new raw material compositions and precast elements. Beton-Betz is supported by several universities who research on the characteristics of recycling concrete in their laboratories. During the past months Beton-Betz has gathered practical know-how in using recycled concrete waste. Read More

A new mix design methodology for recycled aggregate concrete by combining experimental and numerical approaches

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An important step towards a sustainable development in the concrete industry and management of construction waste is to use recycled aggregates (RA) as a viable alternative to the natural one. However, how to formulate and optimize the concrete mixture made of recycled aggregates at an acceptable price and quality is still a question mark. The major difficulty is due to the variability of the aggregate properties, and the lack of a robust methodology able to accurately evaluate the mechanical performance of the recycled concrete. Read More

Use of recycled aggregates for cement production

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Recycled Aggregates (RA) from Construction and Demolition Waste (CDW) contain natural aggregates, hardened cement paste but also masonry, plaster, etc. Part of these recycled aggregates are hardly suitable for concrete production due to their water absorption (cement paste porosity, clays) and reactivity (sulphate or alkalis release, etc.). RA incorporation in Portland cement raw meal is a possible way to use these recycled aggregates and consequently avoid landfill. Read More