Abstract
The effect of different polymer contents on the microstructure of ordinary Portland cementbased macrodefect-free cement was studied by high voltage transmission electron microscopy. The microstructure, especially the morphology and composition of the gel matrix, of material with a low polymer content was significantly different from that of material with a high polymer content. The former consisted mainly of gelatinous material with some microcrystallites and with some porosity. The latter consisted of mainly pure non-porous polymer gel with little metallic content. Although the dry strength of the material with high polymer content was higher than that of the lower polymer content material, the former was extremely unstable after immersing in water. This was attributed to the difference in microstructure of the polymer gel as revealed by electron microscopy.
Similar content being viewed by others
References
J. D. Birchall, A. J. Howard andK. Kendall,Nature 289 (1981) 388.
Imperial Chemical Industries Ltd, European Patent No. 0021682 (1981).
J. D. Birchall,Phil. Trans. R. Soc. A310 (1983) 31.
K. Kendall, A. J. Howard andJ. D. Birchall,ibid. A310 (1983) 139.
N. McN. Alford, G. W. Groves andD. D. Double,Cem. Concr. Res. 12 (1982) 349.
C. M. Cannon andG. W. Groves,J. Mater. Sci. 21 (1986) 4009.
W. Sinclair andG. W. Groves,ibid. 20 (1985) 2846.
N. J. Clayden, C. M. Dobson, G. W. Groves, C. J. Hayes andS. A. Rodger,Proc. Br. Ceram. Soc. 35 (1984) 55.
D. D. Double, A. Hellawell andJ. Penny,Proc. R. Soc. A359 (1978) 435.
G. W. Groves,Cem. Concr. Res. 11 (1981) 713.
F. P. Glasser, in “Cement Production and Use”, edited by J. Skalny (Engineering Production, New York, 1979) p. 31.
N. B. Eden andJ. E. Bailey,J. Mater. Sci. 19 (1984) 2677.
S. A. Rodger, S. A. Brooks, W. Sinclair, G. W. Groves andD. D. Double,ibid. 20 (1985) 2853.
C. S. Poon, PhD thesis, Imperial College London (1985).
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Poon, C.S., Groves, G.W. The microstructure of macrodefect-free cement with different polymer contents and the effect on water stability. J Mater Sci 23, 657–660 (1988). https://doi.org/10.1007/BF01174701
Received:
Accepted:
Issue Date:
DOI: https://doi.org/10.1007/BF01174701