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Souza, L.M.S. (author), Polder, R.B. (author), Çopuroğlu, O. (author)
Alkali–silica reaction (ASR) affects numerous concrete structures worldwide. However, the intervention options for ASR in existing structures are limited. Lithium is proposed to suppress expansion. In this paper, an investigation on two-chamber lithium migration as treatment against ASR is presented. First, the influence of different levels of...
article 2017
document
Yang, Z. (author), Polder, R. (author), Mol, J.M.C. (author)
Owing to the unique molecular structure and high ion exchange capacity, hydrotalcites are believed to have a potential to be modified and tailor-made as an active corrosion protective component of reinforced concrete. In this paper, two types of modified hydrotalcites (MHT-pAB and MHT-NO2) were tested both in alkaline solution and mortar for...
article 2017
document
Pacheco, J. (author), Polder, R.B. (author)
Chloride induced reinforcement corrosion is the predominant degradation mechanism
article 2016
document
Caspeele, R. (author), Sykora, M. (author), Allaix, D.L. (author), Steenbergen, R.D.J.M. (author)
In contrast to the design of new structures, the assessment of existing structures often relies on the subjective judgement of the investigating engineer. An objective verification format for existing structures based on alternative partial factors is however feasible, enabling a rather simple and straightforward, but objective and coherent...
article 2013
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