Abstract
A model for reactions that occur in hydrating portland cement is now generally well developed. Incorporation of various by-products to form blended cements modifies both the hydration reactions and the physical properties of the resulting pastes. A review of recent progress in understanding the effects of blending agents on these reactions is presented. The blending agents considered are low-calcium (Class F) fly ash, high calcium (Class C) fly ash, blast furnace slag, silica fume, biosilica and natural pozzolans. Effects of the blending agents on physical properties such as rheology are also considered. Particular attention is given to the essential role of alkalies in pore solutions and the beneficial reactions that occur with high silica content blending agents.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
Fly Ash and Coal Conversion By-Products: Characterization, Utilization and Disposal I, edited by G.J. McCarthy and R.J. Lauf, Mat. Res. Soc. Symp. Proc. Vol. 43 (Materials Research Society, Pittsburgh, 1985).
Fly Ash and Coal Conversion By-Products: Characterization, Utilization and Disposal II, edited by G.J. McCarthy, F.P. Glasser and D.M. Roy, Mat. Res. Soc. Symp. Proc. Vol. 65, (Materials Research Society, Pittsburgh, 1986).
S. Diamond, in Technology of Concrete When Pozzolans, Slags, and Chemical Admixtures are Used, (ACI - RILEM Symposium, Monterrey, Mexico, 1985) pp. 1–18.
P. Barnes, A. Ghosh and A.L. Mackay, Cem. Concr. Res. 10, 639–646 (1980).
P.L. Pratt and H.M. Jennings, Ann. Rev. Mater. Sci. 11, 123–149 (1985).
B.J. Dalgleish, A. Ghose, H.M. Jennings, and P.L. Pratt, Proc. RILEM Conf. Concr. at Early Ages, Paris, Vol. 1, pp. 137–143 (1982).
D.W. Hadley, Thesis, School of Civil Engineering, Purdue University (1972).
S. Diamond, Selection and Use of Fly Ash for Highway Concrete, Final Report, FHWA/IN/JHRP-85/8, Purdue University (1985).
S. Diamond, D. Ravina and J. Lovell, Cem. Concr. Res. 10, 297–300 (1980).
R.F. Feldman, Cem. Concr. Res. 16, 31–39 (1986).
X. Wu, D.M. Roy and C.A. Langton, Cem. Concr. Res. 13, 277–286 (1983).
K. Luke and F.P. Glasser, Cem. Concr. Res. 17, 273–282 (1987).
M.J. Angus and F.P. Glasser, in Scientific Basis for Nuclear Waste Management IX, edited by Lars and Werme, MRS Proc. Vol. 50 (1986) pp. 547–555.
M. Silsbee, R.I.A. Malek and D.M. Roy, in Proc. 8th Intl. Congr. Chem. Cement, Brazil, Vol. IV, pp. 263–269 (1986).
R.D. Hooton, in Blended Cements, ASTM STP 897, edited by G. Frohnsdorf, (ASTM, Philadelphia, PA, 1986) pp. 128–143.
D.M. Roy and K.M. Parker, in American Concrete Institute SP 79, Vol. 1, (1983) pp. 397–414.
B. Nyame and J.M. Illston, in Proc. 7th Intl. Conf. on the Chemistry of Cements Vol. 3, (Paris, 1980) pp. VI 181–185.
D.N. Winslow and S. Diamond, J. Materials 5, 564–585 (1970).
R.F. Feldman, Cement Technology 3 (1), 5–14 (1972).
R.F. Feldman, in Proc. 8th Intl. Conf. on the Chemistry of Cements Vol. 1, (Rio de Janeiro, 1986) pp. 336–356.
D.M. Roy, in Proc. 8th Intl. Congr. Chem. Cement, Brazil, V. I, pp. 362–380 (1986).
A. Bentur and S. Diamond, in Proc. PCI Intl. Symp. on Durability of Glass Fiber Reinforced Concrete, (Chicago, 1985) pp. 337–351.
L.S. Dent Glasser and N. Kataoka, Cem. Concr. Res. 11, 1–9 (1981).
S. Diamond, R.S. Barneyback Jr. and L.J. Struble, in Proc. 5th Intl. Conf. Alkali-Aggregate Reactions in Concrete, (Capetown, 1981).
S. Diamond, J. Am. Ceram. Soc. 66, C82–C84 (1983).
C.L. Page and O. Vennesland, in Materials and Structures (RILEM) 16, No. 91, 19–25 (1983).
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Glasser, F.P., Diamond, S. & Roy, D.M. Hydration Reactions in Cement Pastes Incorporating Fly Ash and Other Pozzolanic Materials. MRS Online Proceedings Library 86, 139 (1986). https://doi.org/10.1557/PROC-86-139
Received:
Published:
DOI: https://doi.org/10.1557/PROC-86-139