This experimental research evaluated the individual and combined
effect of SAP particles and W/B ratio of mixtures based on
rheometer and flow table measurements. The continued absorption
process of SAP-containing mortars can be followed up by using
rheometer, in particular by comparing yield stress values progression
with the time. The negative impact was not constant and
depended on the dosage of added water. Samples with similar
initial yield stress values and workability can diverge significantly
along time, suggesting that the single use of flow table as parameter
of formulation is restrictive. The spread on table and yield
stress exhibit an opposite relation described by power correlation.
Therefore, the results confirmed that the use of rheometry can play
a relevant role on the final properties.