The influence of natural and nano-additives on early strength of cement mortars

Abstract

The study attempts to evaluate the impact of six different additives, including natural additives and nano-additives, on the early - one day strength of cement mortars. Furthermore the use of heating process to increase the strength development process of tested mortars was analyzed. Tests were performed in three series with different water/ binder ratio, the values were: 0.3, 0.4 and 0.5. The results confirmed, that the tested additives can be used to improve the early strength of the cement mortars. especially for w/b ratio 0.4. Furthermore, thermal treatment contributed significantly to the growth rate of the strength of the modified cement mortars.