Influence of Silica Fume on the properties of fired then water cured lime-rich clay bricks

Summary

The effect of different amounts of silica fume on the hydration characteristics and physico-mechanical properties of calcareous clay bricks made by firing then water curing was studied for up to 3 months. The results indicate that the compressive strength increases to a certain limit then decreases with silica fume content. The strength also increases with curing time. The results of bulk density and the reverse trend of hydration volume changes agree well with that of compressive strength. Silica fume proves to be an active pozzolanic material, and improves the fired then water cured calcareous clay building bricks. 11 refs.

Primary author(s): Assal H H

                            Cairo,Housing & Building Research Centre

Source: Silic.Ind.

            68,No.5/6,2003,p.55-60


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