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Kortversion av SVU-rapport 2022:5 ”Klimatförbättrad betong för dricksvattenanläggningar”
RISE Research Institutes of Sweden, Built Environment, Infrastructure and concrete technology.ORCID iD: 0000-0002-0230-2200
RISE Research Institutes of Sweden, Built Environment, Infrastructure and concrete technology.ORCID iD: 0000-0001-9867-7631
RISE Research Institutes of Sweden, Built Environment, Infrastructure and concrete technology.ORCID iD: 0000-0003-1358-2364
RISE Research Institutes of Sweden, Built Environment, Infrastructure and concrete technology.ORCID iD: 0000-0003-4409-5788
2023 (Swedish)Report (Other academic)
Abstract [en]

This RISE report is a short version of SVU report 2022:5 “Klimatförbättrad betong för dricksvattenanläggningar” (Low carbon concrete for drinking water infrastructure). The purpose of the project was to clarify if the carbon footprint of concrete for drinking water infrastructure can be lowered by replacing Portland cement with supplementary cementitious materials (SCM) accepted for use in concrete without influencing the quality of the drinking water negatively with regard to trace substances and PAH. In addition to reviewing the literature, leaching tests and LCA analyses were conducted on thirteen concretes mixes with varying binder compositions. The results show that it is possible to replace up to 50 % of the cement with the SCMs, ground granulated blast furnace slag (GGBS), silica fume and fly ash. All this may be GGBS and up to 35 % fly ash may be used. This is valid under condition that a drinking water facility which in its entirety is new drinking goes through a tuning period of some days up to a week during which the water quality is monitored before water is delivered to clients. Leaching of some substances is somewhat increased and others are decreased by the replacement of the cement, however the changes are so small that the content in the drinking water in a real facility is only marginally influenced. Which type of binder to use should be decided based on other these materials influence on other concrete properties, for instance on the strength development. The decrease of the carbon footprint is roughly proportional to the cement replacement ratio.

Place, publisher, year, edition, pages
2023. , p. 19
Series
RISE Rapport ; 2023:40
Keywords [en]
Low carbon concrete, drinking water, leaching, LCA, dangerous substances, PAH, slag, fly ash
National Category
Infrastructure Engineering
Identifiers
URN: urn:nbn:se:ri:diva-66070OAI: oai:DiVA.org:ri-66070DiVA, id: diva2:1790032
Note

SVU-projektet har delfinansierats av Sydvatten, Stockholm Vatten och Avfall, Kretslopp och vatten Göteborg, Vatten- och avfallskompetens i Norr AB, Kommunalförbundet Norrvatten samt 4S. Därtill inkluderas i SVU-rapporten resultat från utlakningsprovningar på betong med flygaska finansierade av Heidelberg Materials (dåvarande Cementa AB) och RISE. 

Available from: 2023-08-22 Created: 2023-08-22 Last updated: 2023-08-22Bibliographically approved

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Helsing, ElisabethMalaga, KatarinaSuchorzewski, JanGabrielsson, Ida

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