Residual Capability of Alkali Binding by Hydrated Pozzolanic Cements in Long-Service Concrete Structures

Table 6

Predicted and experimental values and retention capabilities of Na⁺ and K⁺ ions by hydrated cement pastes.

Leaching medium		CEM IV/B (P)			CEM IV/B (V)
		H	K6	N6	H	K6	N6
(mmol/kg)	Na	18.3	15.2	—	12.6	13.0	—
	K	59.7	—	64.1	24.6	—	27.9
(6) (mmol/kg)	Na	15.1	—	—	13.9	—	—
	K	51.0	—	—	30.5	—	—
Rp%	Na	80.6	83.7	—	71.6	70.5	—
	K	86.6	—	85.6	88.0	—	86.4