Concrete with superabsorbent polymers (SAP) - - experience from the Fehmarn field exposure station in Rødbyhavn

Claus  Pade

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Concrete with superabsorbent polymers (SAP) - - experience from the Fehmarn field exposure station in Rødbyhavn

Article by Claus Pade, Danish Technological Institute and Marianne Tange Hasholt, Technical University of Denmark featured at Nordic Concrete Research Symposium in Tampere, 29 May - 2 June 2011

Abstract

A field exposure station has been established in Rødbyhavn Habour. One of the concrete types tested is with superabsorbent polymer (SAP) - a new type of additive, which can be used to mitigate self-desiccation and to control air void structure.

This paper presents results from the extensive laboratory test program, which was conducted before test panels were placed in Rødbyhavn Habour. Results show that when using SAP, it is possible to produce concrete with a pre-defined air void structure. Strength and transport properties are comparable to the properties of a reference concrete, but results are inconclusive as regards frost resistance.

Key words: Superabsorbent polymer (SAP), Rødbyhavn field exposure station.