MATEC Web Conf.
Volume 322, 2020MATBUD’2020 – Scientific-Technical Conference: E-mobility, Sustainable Materials and Technologies
|Number of page(s)||10|
|Section||E-mobility, Sustainable Materials and Technologies|
|Published online||14 October 2020|
The effect of fly ash and granulated blast furnace slag on slip and tensile adhesion strength of tile adhesives mortars
Sieć BadawczaŁukasiewicz – Instytut Ceramiki i Materiałów Budowlanych, OddziałSzkła I Materiałów Budowlanych w Krakowie
* Corresponding author: email@example.com
In the formulations of adhesive mortars for tiles almost exclusively CEM I Portland cements are used. Practically no CEM II - CEM V cements with additives are used, although they are often produced with strength classes 32.5 R and some even 42.5R. Relationship between strengths of tile adhesives in which cement was partially replaced with fly ash and granulated blast furnace slag was studied. A fly ash was used in three different replacement levels from 5% to 25% by weight of either cement. The tensile adhesion were determined at 28 and 90 days after various conditioning conditions of the samples. The influence on the flexibility of mortars was also assessed. In small substitution levels, fly ash replacement increased the tensile adhesion strength. The results indicate that the optimal amount of fly ash and granulated blast furnace slag additive replacing a given amount of cement allows to obtain adhesive mortars for tiles with high functional parameters.
© The Authors, published by EDP Sciences, 2020
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