Lithium migration on mortar specimens with embedded cathode
conference paper
Alkali-Silica Reaction (ASR) is a durability problem that affects numerous concrete structures woridwide. As the reaction progresses. it might lead to deleterious expansion and cracking. The addition of lithium into fresh concrete is already acknowledged as a preventive method. In existing structures, however, lithium would need to be driven into the concrete and the most effective way is through ionic migration. For migration to occur in reinforced concrete, power is supplied between an external electrode and the rebar. If the reinforcement is the cathode, it attracts positive ions, such as lithium ions. Several studies have been conducted on the use of lithium migration as a treatment for ASR. Nevertheless, so far, there is no agreement on the conclusions. It is necessary to better understand this process order to develop a possible treatment against ASR. In this work, a preliminary investigation on lithium migration into mortar specimens with embedded cathode is presented.
TNO Identifier
528643
ISBN
978-1-138-02843-2
Publisher
CRC Press
Source title
Concrete Repair, Rehabilitation and Retrofitting IV: 4th International Conference on Concrete Repair, Rehabilitation and Retrofitting (ICCRRR-4), 5-7 October 2015, Leipzig, Germany
Editor(s)
Dehn, F.
Beushausen, H.D.
Alexander, M.
Moyo, P.
Beushausen, H.D.
Alexander, M.
Moyo, P.
Pages
39-43
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