Noun
porewater (countable and uncountable, plural porewaters)
(geology) The water that fills the pores between the grains of sediment etc.
The soluble dissociated silicic acid reacts in the porewater with the calcium hydroxide ( portlandite ) present in the cement paste to form an expansive calcium silicate hydrate (CSH). Source: Internet
The high pH prevailing in the cement porewater (12.5 < pH < 13.5) limits the mobility of many heavy metals by decreasing their solubility and increasing their sorption onto the cement mineral phases. Source: Internet