Physical effects of natural pozzolana on alkali-activated slag cement

Abstract

The alkali-activated slag (AAS) cement is an interesting building material, confronting to the new economical and ecological challenges. In order to enhance its physical properties in comparison with ordinary Portland cement (OPC), we used natural pozzolana as a mineral addition. The parameters studied are: the fineness of the addition (5350 and 5650 cm²/g), and its percentage (0 to 30%). The activator used is NaOH (5M) and the curing temperature was fixed at 20°C. The results show the possibility to obtain compound alkali-activated slag cement with better stability and a compressive strength higher than 35 MPa.

Citation

Zeghichi, L. and Benghazi, Z. (2011), "Physical effects of natural pozzolana on alkali-activated slag cement", World Journal of Engineering, Vol. 8 No. 2, pp. 141-146. https://doi.org/10.1260/1708-5284.8.2.141