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Application of superabsorbent polymers in lightweight concrete with porous matrix



Title: Application of superabsorbent polymers in lightweight concrete with porous matrix
Author(s): H-W. Reinhardt, A. Assmann
Paper category : conference
Book title: International RILEM Conference on Use of Superabsorbent Polymers and Other New Additives in Concrete
Editor(s): O.M. Jensen, M.T. Hasholt and S. Laustsen
Print-ISBN: 978-2-35158-104-9
e-ISBN: 978-2-35158-105-6
Publisher: RILEM Publications SARL
Publication year: 2010
Pages: 207 - 212
Total Pages: 6
Nb references: 5
Language: English


Abstract: Starting from a concrete mixture with expanded glass granulate as lightweight aggregate, two different approaches to aerate the cement paste for further weight reduction were examined. The first approach to increase the porosity of the matrix was to add high amounts of dry SAP and additional water. In a second experimental study the porosity was maintained by stable foam which was added directly to the concrete mixer at the end of the mixing time. The foam was generated by expanding a concentrated liquid on the basis of a protein. The mixtures (with low oven-dry densities down to 300 kg/m³) were compared to each other concerning properties like strength, Young’s modulus, bulk density and thermal conductivity.


Online publication: 2010-10-04
Publication type : full_text
Public price (Euros): 0.00


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