Hostname: page-component-77c89778f8-rkxrd Total loading time: 0 Render date: 2024-07-16T15:43:00.471Z Has data issue: false hasContentIssue false
  • English
  • Français

Pore Structure of Hydrated Portland Cement Measured by Nitrogen Sorption and Mercury Intrusion Porosimetry

Published online by Cambridge University Press:  25 February 2011

Will Hansen  and
Jamal Almudaiheem
Will Hansen
Affiliation:
Department of Civil Engineering, University of Michigan, Ann Arbor, Michigan 48109
Jamal Almudaiheem
Affiliation:
Department of Civil Engineering, King Saudi University, Riyadh, Saudi Arabia
Get access

Abstract

The pore structure (i.e. surface area, pore size distribution and pore volume) of well-hydrated portland cement pastes of water-cement ratios 0.4, 0.6, and 0.75 were investigated by the nitrogen sorption and mercury intrusion porosimetry (MIP) techniques. The effect of solvent replacement by methanol on the pore structure was studied as well. It was concluded that the solvent replacement drying procedure preserves the original pore structure of hydrated cement because the calculated and measured bulk densities of the different water-cement ratio systems investigated were in excellent agreement. Capillary condensation analysis was used to estimate the volume of capillary pores smaller than 4 nm in pore diameter for the 0.6 and 0.75 water-cement ratio pastes. The 0.4 water-cement ratio paste has pores smaller than can be determined from capillary condensation analysis. The volume of pores smaller than 4 nm was estimated from volume-thickness (V-t) analysis. For the three systems investigated, the volume of pores greater than 4 nm was obtained by MIP. For solvent-replaced pastes that showed capillary condensation according to V-t analysis, excellent agreement was obtained between the nitrogen sorption and MIP techniques in the pore diameter range of 4 nm to 30 nm.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 85: Symposium M – Microstructural Development During Hydration of Cement , 1986 , 105
Copyright
Copyright © Materials Research Society 1987

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

REFERENCES

1. Sereda, P.F., Feldman, R.F. and Ramachandran, V.S., Proc. Int. Congr. Chem. Cem., 7th, 1980 1, VI–1/10 – VI-1/21 (1980).Google Scholar
2. Winslow, D.N. and Diamond, S., J. Am. Ceram. Soc. 57, 193–197 (1974).Google Scholar
3. Hunt, C.M., Tomes, L.A. and Blaine, R.L., J. Res. Natl. Bur. Stand. (U.S.) 64A(2), 163–169 (1960).Google Scholar
4. Litvan, G.G., Cem. Concr. Res. 6, 139–144 (1976).Google Scholar
5. Parrott, L.J., Hansen, W. and Berger, R.L., Cem. Concr. Res. 10(5), 647–655 (1980).Google Scholar
6. Feldman, R.F., Cem. Concr. Res. 4, 1–11 (1973).Google Scholar
7. Mikhail, R.Sh., Copeland, L.E. and Brunauer, S., Can. J. Chem. 42, 426–438 (1964).Google Scholar
8. Winslow, D.N. and Diamond, S., J. Mater. 5, 564–585 (1970).Google Scholar
9. Feldman, R.F., World Cem. Technol., 1–13 (1972).Google Scholar
10. Hansen, W., Berger, R.L. and Young, J.F., submitted to J. Am. Ceram. Soc.Google Scholar
11. Cranston, R.W. and Inkley, F.A., Adv. Catal. 9, 143–154 (1957).Google Scholar
12. Lowell, S., Introduction to Powder Surface Area (John Wiley & Sons, 1979) pp. 1–199.Google Scholar
13. Washburn, E. W., Proc. Natl. Acad. Sci. U.S.A. 7, 115 (1921).Google Scholar
14. Mikhail, R.Sh., Brunauer, S. and Bodor, E.E., J. Colloid Interface Sci. 26, 45–53 (1968).CrossRefGoogle Scholar
15. deBoer, J.H., The Structure and Property of Porous Materials (Butterworth, London, 1958) p. 68.Google Scholar
16. Diamond, S., Cem. Concr. Res. 1(5), 531–546 (1971).Google Scholar
17. Bentur, A., J. Am. Ceram. Soc. 63(7–8), 381–386 (1980).Google Scholar
18. Young, J.F., Berger, R.L. and Bentur, A., Cemento 3, 391–397 (1978).Google Scholar