However, an eventual potential problem concerning SAP is the
separation and grinding of particles caused by aggregates during
concrete mixing [5]. In addition, the kinetics of absorption of SAP
depends on the particle size [6] and chemical composition [7,8].
Correspondingly, the mechanical properties improvement can be
significant, small or null [9,10]. In fact, it depends on the combined
effect between the porosity generated in the concrete – causing a
strength reduction – and the internal curing water provided by
SAP particles that will enhance the degree of hydration and the
material resistance [11].
However, an eventual potential problem concerning SAP is theseparation and grinding of particles caused by aggregates duringconcrete mixing [5]. In addition, the kinetics of absorption of SAPdepends on the particle size [6] and chemical composition [7,8].Correspondingly, the mechanical properties improvement can besignificant, small or null [9,10]. In fact, it depends on the combinedeffect between the porosity generated in the concrete – causing astrength reduction – and the internal curing water provided bySAP particles that will enhance the degree of hydration and thematerial resistance [11].
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