000			01827aab a2200265 4500
008			231218b2023 |||br||| |||| 00| 0 eng d
022			_a0889-325x
100			_aChopperia, K.S.T. _9879303
100			_aTuinukuafe, A. _9879304
100			_aBiever, J.H _9879305
100			_aIsgor, O.B. _9879306
100			_aWeiss, W.J. _9878673
245			_aInfluence of Aggregate on Fresh Pore Solution Resistivity
300			_a111-120 p.
520			_aThis study examines the influence of fine aggregates on early-age mortar pore solution chemistry and electrical resistivity. Specifically, this paper considers the potential adsorption of Na+ and K+ on the aggregate. Ten aggregates from various locations in the United States were used in this study. It was shown that fine aggregates can adsorb Na+ and K+ ions, which can change the ionic concentration of the pore solution and increase the pore solution resistivity. The resistivity is also influenced by the absorbed water in the aggregate, which dilutes the pore solution. A test methodology was proposed to characterize the aggregate adsorption of Na+ and K+ from the pore solution. The alkali adsorption was quantified by developing adsorption isotherms for each aggregate. Using the adsorption isotherms, the concentrations of Na+ and K+ adsorbed on aggregates in mortars were estimated.
650			_aAdsorption Isotherms _9685137
650			_aAlkali Adsorption _9879307
650			_aFine Aggregates _9879308
650			_aFresh Mortar _9879309
650			_aPore Solution _9728622
650			_aResistivity _9173949
773	0		_tACI Materials Journal _x0889325X _dDetroit, U.S.A : American Concrete Institute
856			_uhttps://www.concrete.org/publications/internationalconcreteabstractsportal.aspx?m=details&id=51738894
942			_2ddc _n0 _cART _o14993 _pMr. Muhammad Rafique Al Haj Rajab Ali (Late)
999			_c814495 _d814495