1. US Department of Commerce, Outline of a National Plan on High-Performance Concrete: report on the NIST/ACI Workshop, May 16?18, 1990. NISTIR 4465, December 1990.
2. P. K. Mehta, P. Schiessl and M. Raupach, 9th International Congress on the Chemistry of Cement, New Delhi, 1992, Vol. 1, p. 571.
3. R. J. Gummerson, C. Hall and W. D. Hoff, Building and Environment 15 (1981) 101.
4. C. Hall, Materials and Structures 27 (1994) 291.
5. V. Beltrán, A. Barba, J. C. Jarque and A. Escardino, Brit. Ceram. Trans. J. 90 (1991) 77.