Superabsorbent Polymers (SAP)

  • Stefan Friedrich
Part of the RILEM State of the Art Reports book series (RILEM State Art Reports, volume 2)


Superabsorbent polymers (SAPs) are able to absorb up to 1500 g of water per gram of SAP. Chemically speaking, SAPs are cross-linked polyelectrolytes which start to swell upon contact with water or aqueous solutions resulting in the formation of a hydrogel. This chapter gives an introduction into the production and specific properties of SAPs relevant for their use in concrete construction.


Absorption Capacity Suspension Polymerization Poly Acrylic Acid Azeotropic Distillation Extractable Part 
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  1. [1].
    Buchholz FL, Graham AT (eds.) (1998) Modern Superabsorbent Polymer Technology. Wiley-VCH, New YorkGoogle Scholar
  2. [2].
    Frank M (2003) Superabsorbents. In: Bohnet M et al. (eds) Ullmann’s Encyclopedia of Technical Chemistry, 7th edn, electronic release. Wiley-VCH VerlagGoogle Scholar
  3. [3].
    Chmelir M, Pauen J (1988) Verfahren und Vorrichtung zum kontinuierlichen Herstellen von Polymerisaten und Copolymerisaten der Acrylsäure und/oder Methacrylsäure, DE 3544770 C2. Stockhausen GmbH, Krefeld, GermanyGoogle Scholar
  4. [4].
    Irie Y, Hatsuda T, Yonemura K, Kimura K (1996) Method of production of particulate hydrogel polymer and absorbent resin, EP 508810 B1. Nippon Shokubai Co., Ltd., Osaka, JapanGoogle Scholar
  5. [5].
    Aoki S, Yamasaki H (1978) Process for preparation of spontaneously-crosslinked alkali metal acrylate polymers, US 4093776. Kao Soap Co, Ltd., Tokio, JapanGoogle Scholar
  6. [6].
    Nakamura M, Yamamoto T, Tanaka H, Ozawa H, Shimada Y (1996) Process for production of water-absorbent resin, EP 441507 B1. Sumitomo Seika Chemicals Co, Ltd., Hyogo, JapanGoogle Scholar
  7. [7].
    Schnee R, Masanek J, Fink H, Schleier W, Biedermann G et al. (1986) Schwach vernetzte, in Wasser schnell quellende, teilchenförmige feste Polymerisate oder Mischpolymerisate, Verfahren zu ihrer Herstellung und Verwendung in Hygieneartikeln, DE 3505920 A1. Röhm GmbH, Darmstadt, GermanyGoogle Scholar
  8. [8]. Accessed 23 March 2009
  9. [9].
    Kellenberger SR (1993) Absorbent products containing hydrogels with ability to swell against pressure, EP 339461 B1. Kimberley-Clark Corporation, Neenah, Wisconsin, United States of AmericaGoogle Scholar
  10. [10].
    EDANA (2002) Recommended test method: Gravimetric determination of absorption under pressure, ERT 442.2 02Google Scholar
  11. [11].
    Azad MM, Herfert N, Mitchel M, Robinson J (2003) Crosslinked polyamin coating on superabsorbent polymers, WO 2003/0436670 A1. BASF AG, Ludwigshafen, GermanyGoogle Scholar
  12. [12].
    EDANA (2002) Recommended test method: Particle size distribution – sieve fractionation, ERT 420.2-02Google Scholar
  13. [13].
    EDANA (2002) Recommended test method: Determination of content of respirable particles, ERT 480.2-02Google Scholar
  14. [14].
    Joy MC, Hsu W (2005) Superabsorbent polymer having increased rate of water absorption, WO 2005/063313 A1. Stockhausen Inc., Greensboro, North Carolina, United States of AmericaGoogle Scholar
  15. [15].
    Meyer WC (1989) A polymeric blend useful in thin-bed mortar compositions, EP 327351 A3, 1989 The Dow Chemical Company, Midland, Michigan, United States of AmericaGoogle Scholar
  16. [16].
    Girg F, Böhme-Kovac J (1996) Verdickermischungen für Baustoffe, EP 504870 B1. Hoechst AG, Frankfurt am Main, GermanyGoogle Scholar
  17. [17].
    Girg F, Böhme-Kovac J, Mann HM (1996) Zusatzmittelkombination zur Verbesserung der Verarbeitbarkeit von wasserhaltigen Baustoffgemischen, EP 530768 B1. Hoechst AG, Frankfurt am Main, GermanyGoogle Scholar

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© RILEM 2012

Authors and Affiliations

  1. 1.BASF Construction Chemicals GmbHBerlinGermany

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