Reduction of shrinkage by Superabsorbent polymers (SAP) in fibre reinforced mortars
نویسندگان
چکیده
Fibre reinforced mortars (FRM) containing fly ash (FA) and ground granulated blast-furnace slag (GGBS) may suffer from volumetric changes despite fibre reinforcement, internal curing be required. This paper evaluates the efficiency of Superabsorbent Polymers (SAP) in reduction shrinkage. Autogenous (AS), plastic (PS) drying (DS) shrinkage were analysed for FRM with three types cement (CEM I, CEM II/B-V III/A) SAPs (different water absorption capacities different particles sizes). The experimental results showed that SAP substantially contribute to total cementitious reduce susceptibility crack formation. Reduction autogenous is highly dependent on particle sizes. Finer lead better performances reductions reaching 75% PS 124% AS. shrinkage, although lower (up 12%), can achieved by application capacities. effect sizes less important
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ژورنال
عنوان ژورنال: Construction and Building Materials
سال: 2021
ISSN: ['1879-0526', '0950-0618']
DOI: https://doi.org/10.1016/j.conbuildmat.2021.123109