Fifth International Conference on Sustainable Construction Materials andTechnologies, London, İngiltere, 14 - 17 Temmuz 2019, ss.74-82
Nowadays, the environmental impact which is caused by the industrial development specially
in construction section have led to an increasing interest in geopolymer field and thereby have
promoted the research in terms of full replacement of Portland cement binder and feasible
utilization of waste materials. In this paper, an attempt was done to fabricate a binding matrix
that is totally cement free and based on eco-friendly materials. The effect of adding silica fume
on strength properties, physical properties and resistance to abrasion were studied. In general,
silica fume was found to enhance the investigated properties due to the fineness of silica fume
particles which generally formed geopolymeric composites with more compact matrix. The
geopolymeric matrix which is fabricated with the presence of silica fume has shown an obvious
improvement in terms of physical properties. Moreover, the compactness of the matrix led to
a good performance regarding the abrasion resistance, to be more specific, the abraded surface
was more resistant to weight loss after adding silica fume. In addition to that, an acceptable
degree of correlation was obtained when the results of the studied properties were linked,
results from strength tests and the ones from non-destructive tests were having a good degree
of correlation.