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Publikācija: Effect of Superabsorbent Polymers (SAP) on the Freeze-Thaw Resistance of Concrete: Results of a RILEM Interlaboratory Study

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Nosaukums oriģinālvalodā Effect of Superabsorbent Polymers (SAP) on the Freeze-Thaw Resistance of Concrete: Results of a RILEM Interlaboratory Study
Pētniecības nozare 2. Inženierzinātnes un tehnoloģijas
Pētniecības apakšnozare 2.1. Būvniecības un transporta inženierzinātnes
Autori Viktor Mechtcherine
Christof Schröfl
Mateusz Wyrzykowski
Michaela Gorges
Pietro Lura
Daniel Cusson
Jim Margeson
Nele De Belie
Didier Snoeck
Kazuo Ichimiya
Shin-Ichi Igarashi
Vyacheslav Falikman
Stefan Friedrich
Jürgen Bokern
Patricija Kara
Alicja Marciniak
Hans-Wolf Reinhardt
Sören Sippel
António Bettencourt Ribeiro
João Custódio
Guang Ye
Hua Dong
Jason Weiss
Atslēgas vārdi Air-entraining agent; CDF test; CIF test; Deicing salt; Frost resistance; Freeze–thaw; Interlaboratory study; Scaling; Slab test; Superabsorbent polymer
Anotācija This article presents the results of an interlaboratory experimental study performed by 13 international research groups within the framework of the activities of the RILEM Technical Committee 225-SAP “Applications of Superabsorbent Polymers in Concrete Construction”. Two commercially available superabsorbent polymers (SAP) were tested in terms of their influence on the freeze–thaw resistance of ordinary concrete. To test the robustness of the method, all participating laboratories used locally produced materials. Furthermore, following this aim, various accelerated methods were used to estimate the resistance of the concrete to freeze–thaw cycles. The effect of adding SAP was from insignificant to considerably positive in terms of improvement in material performance as determined by reduced mass loss after freeze–thaw cycles; only one participant observed worsening of the material behaviour. At the same time, due to the addition of SAP, a much less pronounced decrease in the dynamic Young’s modulus was observed as a result of freeze–thaw testing without deicing salt.
DOI: 10.1617/s11527-016-0868-7
Atsauce Mechtcherine, V., Schröfl, C., Wyrzykowski, M., Gorges, M., Lura, P., Cusson, D., Margeson, J., De Belie, N., Snoeck, D., Ichimiya, K., Igarashi, S., Falikman, V., Friedrich, S., Bokern, J., Kara, P., Marciniak, A., Reinhardt, H., Sippel, S., Bettencourt Ribeiro, A., Custódio, J., Ye, G., Dong, H., Weiss, J. Effect of Superabsorbent Polymers (SAP) on the Freeze-Thaw Resistance of Concrete: Results of a RILEM Interlaboratory Study. Materials and Structures, 2017, Vol.50, 1.-19.lpp. ISSN 1359-5997. e-ISSN 1871-6873. Pieejams: doi:10.1617/s11527-016-0868-7
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ID 22790