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Home > Publications > International Concrete Abstracts Portal
The International Concrete Abstracts Portal is an ACI led collaboration with leading technical organizations from within the international concrete industry and offers the most comprehensive collection of published concrete abstracts.
Title: Use of Superabsorbent Polymers to Reduce Autogenous Shrinkage in Mortars with Ground Granulated Blastfurnace Slag
Author(s): Fernando C R Almeida, Agnieszka J Klemm, Giacomo Moriconi and Martina Cingolani
Publication: Institute of Concrete Technology
Appears on pages(s): 5 pages
Abstract:This ICT Prize-winning paper argues that superabsorbent polymers (SAP) can be used for internal curing and reduction of cracking susceptibility, due to their high capacity of water control in fresh concrete. SAP efficiency in autogenous shrinkage reduction in blended cements containing ground granulated blastfurnace slag has been evaluated. The study focused on mortars with four levels of cement replacement by GGBS and two types of SAP with different water absorption capacities. Tests of consistency (flow table method), air content of fresh mortar (pressure method) and autogenous shrinkage (corrugated tubes method) have been carried out. The results showed that SAP can significantly reduce autogenous shrinkage for any studied GGBS content in comparison with the reference mortar. In addition to the positive environmental impact of using GGBS, the reduction of autogenous shrinkage by SAP may decrease the cracking susceptibility and hence increase the sustainability level of the material for more durable construction.
Institute of Concrete Technology, International Partner Access.
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