What is it about?
The aim of the research was to investigate the influence of cement/aggregate particles friction during mortar mixing on the properties of water-saturated SA. Novel mechanism of SAP hydrogel fragmentation was identified as one of the causes of differences in internal curing efficiency dependent on SAP state (water-saturated/non-saturated). Due to mixing process the surface area of tested SAP increased about 10 times. It was found that dosing SAP in a hydrogel form results in more homogenous SAP distribution within cement matrix. Such a modification of SAP dosing process enables to increase the efficiency of concrete internal curing. It was confirmed by obtained results for concrete mechanical strength and freeze-thaw resistance.
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Why is it important?
New approach to SAP polymer incorporation into cement based mortars and concrete.
Read the Original
This page is a summary of: Effect of mechanically-induced fragmentation of polyacrylic superabsorbent polymer (SAP) hydrogel on the properties of cement composites, Construction and Building Materials, December 2020, Elsevier,
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