Abstract
Sorption is a term used for water ingress into pores under unsaturated conditions due to capillary suction. Sorptivity testing has been used as a measure of the ability of concrete to absorb water. Sorptivity tests were conducted on three concrete mixtures, which had been preconditioned to various initial moisture contents. Results show that the sorptivity is dependent on initial water content as well as the water to cement ratio of concrete. A linear trend was found relating normalized sorptivity values to degree of saturation.
Issue Section:
Research Papers
References
1.
Brutsaert
, W.
, 1976
, “The concise formulation of diffusive sorption of water in a dry soil
,” Water Resources Research
, Vol. 12
, No. 6
, pp. 1118
–1124
.2.
CUR Report,
1991
, Fly ash as addition to concrete, Centre for Civil Engineering Research and Codes
, Report 144, Gouda, The Netherlands.3.
DeSouza
, S. J.
, 1996
, Test methods for the evaluation of the durability of covercrete
. M.A.Sc. thesis, University of Toronto
.4.
DeSouza
, S. J.
, 1997
, “Evaluation of laboratory drying procedures relevant to field conditions for concrete sorptivity measurements
,” Cement, Concrete and Aggregates
, Vol. 19
, No. 2
, pp. 59
–63
.5.
Hall
, C.
, 1989
, “Water sorptivity of mortars for the evaluation of the durability of covercrete
.” Magazine of Concrete Research
,” Vol. 41
, No. 147
, pp. 51
–61
.6.
Hall
, C.
, 1997
, “Barrier performance of concrete: a review of fluid transport theory
,” Penetration and Permeability of Concrete: Barriers to Organic and Contaminating Liquids
. RILEM Report 16, Stuttgart, Germany.7.
Martys
, N. S.
and C. F.
Ferraris
, 1997
, “Capillary Transport in Mortars and Concrete
,” Cement and Concrete Research
. Vol. 27
, No. 5
, pp. 747
–760
.8.
McCarter
, W. J.
, H.
Ezirim
, and M.
Emerson
, 1992
, “Absorption of water and chloride in concrete. Magazine of Concrete Research
,” Vol. 44
, No. 158
, pp. 31.9.
Parrott
, L. J.
1992
, “Variations of water absorption rate and porosity with depth from an exposed concrete surface: Effects of exposure conditions and cement type
,” Cement and Concrete Research
, Vol. 22
, pp. 1077
–1088
.10.
Parrott
L. J.
, 1994
, “Moisture conditioning and transport properties of concrete test specimens
.” Materials and Structures
, Vol. 27
, pp. 460
–468
.11.
Philip
, J. R.
, 1957
, “Theory of infiltration
,” Advanced Hydroscience
, Vol. 5
, p. 215.12.
Powers
, T. C.
, 1947
, “A discussion of cement hydration in relation to the curing of concrete
,” Portland Cement Association Research Bulletin
, Vol. 27
, pp. 178
–188
.13.
Punkki
, J.
and E. J.
Sellevold
, 1994
, “Capillary suction in concrete: Effects of drying procedure
,” Nordic Concrete Research Publication
, No. 15
, 2/94
, Oslo, 12
1994
.
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