Figure 4.

Powers model in three variants. (a) Sealed system, not modified with superabsorbent polymers; hydration takes place until the capillary water is exhausted [47]; (b) Sealed system, modified by superabsorbent polymers based on the dosing method assuming the addition of non-activated SAP to other dry components of the mix; (c) Sealed system, modified with superabsorbent polymers based on the dosing method involving the addition of a mixture of previously activated SAP and remaining mixing water to the rest of components of the concrete mix. A detailed description of charts in the text.