Research in Finland to promote recycling of concrete, sludge and water

Hannele Kuosa, Markku Leivo

    Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review


    A research project aiming at development of recycling in the concrete industry was completed in Finland in 2005. One part of the project focused on recycling of concrete sludge and process water. The effect of process water on concrete quality, also including air-entrained concretes, was studied. In addition, the reuse of concrete sludge outside the concrete factory, e.g. as a liming fertiliser, was examined. Experiments on granulation and solidification of the sludge were included. It is advisable to recycle process water including fine particles, when it is effectively possible. Concrete sludges are not environmentally a big problem when reused outside the factory. The widening of the use of concrete sludges as recycled products demands both technical know-how and logistics management.
    Original languageEnglish
    Title of host publicationProceedings Nordic Concrete Research Meeting 2005
    Subtitle of host publicationSandefjord, Norway, 12-15 June 2005
    PublisherNorsk Betongforening
    ISBN (Print)82-913-4192-5
    Publication statusPublished - 2005
    MoE publication typeA4 Article in a conference publication


    • recycling
    • concrete sludge
    • process waters
    • reuse
    • granulation
    • solodification
    • liming fertilizer


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